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The 'discovery' of the Voynich MS by Wilfrid Voynich

Notice (29/04/2023)

A recent publication now provides answers to numerous open questions mentioned on the present page. An update of this page is in preparation. The most important aspects are already included in the history page.


This is one of two pages at this site that look more closely at Voynich's acquisition of the Voynich MS. The Voynich MS was just one of several manuscripts he acquired in 1911 or 1912, and it came from a larger collection of books and manuscripts.

This page explores the details of the 'discovery' of the Voynich MS by Voynich, in particular the two questions where the MS was preserved and how he was able to find and buy it. This work is still on-going, and no firm conclusion can be drawn. The other page explores the composition of this collection. This question is largely answered on that page. There are occasional cross-references between the two pages, but both can be read independently, without having to go back and forth all the time.

There is a third page that paints the historical background of this collection, which is recommended reading, but not absolutely necessary to understand the present page. Some details of that page are also included here.


In all publications about the Voynich MS we read that the location where the manuscripts were stored and sold was the Villa Mondragone in Frascati, but the evidence for this, and for many other details surrounding this 'discovery', have never been analysed in detail. In this page I will investigate two questions: "where was this collection kept", and "how did Voynich become involved".

In the first part of this page I will present all available evidence related to both questions, either directly from information presented by Voynich himself, or indirectly from other people's reports of his statements. We will see that there are several different versions to his story, in particular about the location of the sale, which is either a castle in Austria, a castle in Southern Europe or more specifically a castle in Frascati.

In this first part I will also explore independent sources related to both questions, while keeping open all different versions of Voynich's story. Here, it becomes clear that Voynich was obliged to maintain strict confidence about the sale and about the origin of the manuscripts, by the Jesuit sellers. We shall also see that it was very difficult to maintain this strict confidence, but he managed to keep the secret quite well.

Part 2 then concentrates on the way how Voynich discovered, or became involved with the collection, with some new information. Part 3 concentrates on the question of the whereabouts of this collection. Also in this area there is some new information, but only very tentative conclusions can be drawn.

One important general conclusion is that Voynich's story that he discovered these manuscripts himself, in chests of which the guardians were unaware of what they contained, is definitely not true. It was a collection hidden by the Jesuits in or before 1873, offered for sale to the Vatican in 1903. Around 1911 Voynich was invited to buy part of it, for reasons that still are partly obscure. The collection seems to have been in hiding in one of two possible places not far from Rome: Castel Gandolfo or Frascati, or in fact in both, one after the other. The reason for Voynich's involvement is likely related to a pair of highly valuable manuscripts in the collection that the Vatican could not afford to buy.

1. The evidence

1.1 Introduction

All books and articles written about the Voynich MS tell us that it was discovered by W.Voynich in Villa Mondragone in Frascati.

Is this really what happened? Voynich always maintained that he discovered the collection of books and manuscripts that included the Voynich MS (1) in chests of which the owners themselves were unaware what they contained, but he never said exactly where this was. He certainly never mentioned Villa Mondragone. This location was announced by Hans P. Kraus thirty years after Voynich's death. Kraus owned the MS after the deaths of Wilfrid and Ethel Voynich, and had access to some information not previously divulged by Voynich.

This part of the history of the MS has largely been copied between printed and internet sources over the years without much further investigation, but the availability of new evidence makes this investigation possible now.

1.2. Information from W. Voynich

1.2.1. As presented by himself

Information from Voynich about the acquisition of this collection of manuscripts is relatively sparse. Best known are the statements in his 1921 paper (2), where he refers to his acquisition of these manuscipts in a castle in Southern Europe, while he was keeping the precise location secret, since he was still hoping to buy more books there. This was written nine years after the event, but there are also some earlier recorded statements from Voynich. They are presented here in chronological order.

The first sources we have are several newspaper reports from November 1915 that describe a number of exhibitions of Voynich's most interesting manuscripts and early prints (3). I have transcribed them here. These exhibitions included many more books than just the Jesuit collection including the Voynich MS, but the most notorious items were from it. During these exhibitions, Voynich spoke about the origin of the collection, and this has been recorded in the above-mentioned newspapers with some variations. Without repeating the full text of the four reports, following is my summary of them.

During research, Voynich found evidence, possibly in some old correspondence, of a collection of manuscripts hidden in Austria. These were manuscripts from ducal or princely libraries, which were taken abroad during Napoleon's invasion into Italy, in order to prevent that they were taken to Paris by Napeolon. After some detective work, Voynich found the chests in a castle in Austria, or a castle of an Austrian nobleman. These chests had not been opened for more than a century, and their owners or guardians had no idea what they contained. Voynich obtained the rights to them, also because the original owners had all died and the collection(s) had been forgotten.

A bit more than one year later, Voynich wrote a letter to Prof. Wilkins of the University of Chicago (4). This letter, which is dated 27 February 1917, discusses a Boccaccio MS that prof. Wilkins was studying, and in it Voynich answered some questions from Wilkins. The Boccaccio MS originates from the same collection as the Voynich MS (5), and it was sold by Voynich to the University of Chicago. The letter says:

The large collection of manuscripts, acquired by me from its hidden place, six years ago, consisted to my best knowledge of many collections belonging to Dukes and Princes, including part of the Malatesta library, part of the Matthias Corvinus library, and part of the Libraries of the Dukes of Parma, Modena and Ferrara, part of the collection of Borso, Alfonso D’Arragonia, and several others. I do not know from which of these collections Boccaccio was removed. Until the close of the 18th Century all these manuscripts were in Italy, but were then removed abroad in fear of Napoleon’s invasion. As far as I know, from that period until discovered by me, they were not disturbed, and not seen by anyone. The place from which I purchased them I cannot disclose, due to my promise given to the guardians of these manuscripts, whose former owners, as you see, disappeared, thanks to the unification of Italy under the Savoy Dynasty.

In a letter of 18 September in the same year he wrote to Edith Rickert (6), a cryptography expert interested in the Voynich MS:

In regard to the history of the MS., I am sorry I can tell you very little because I am bound by promises made to those from whom I acquired it.

In his 1921 paper (see note 2) Voynich wrote:

In 1912 [...] I came across a most remarkable collection of preciously illuminated manuscripts. For many decades these volumes had lain buried in the chests in which I found them in an ancient castle in Southern Europe
As I hope some day to be able to acquire the remaining manuscripts in the collection, I refrain from giving details about the locality of the castle.

1.2.2. Reports after Voynich's death

Wilfrid Voynich died on 19 March 1930, and four months later his widow Ethel Lilian Voynich (henceforth simply ELV) wrote a letter that should only be opened after her own death (7):

The Cipher MS. was bought [inserted: with other MSS] by W.M. Voynich, in or about 1911. It was the property of the Vatican, and was (in a castle ?) at Frascati. The intermediary through whom he approached the Vatican authorities was the English Jesuit Father Joseph (?) Strickland, who had, I believe, some connection with Malta. Father Strickland, who has since died, knew that the sale of certain MSS. had been decided upon, if a buyer could be found whose discretion could be trusted. Whether this [inserted: secrecy] was because of the strained relations with the Quirinal I do not know. Father Strickland gave his personal assurance that W.M.V. could be trusted, and on that assurance he was allowed to buy, after giving a promise of secresy [sic]

In 1961, one year after ELV's death, the new owner of the MS was the rare book dealer Hans P. Kraus. From him we have two slightly different reports about a visit he made to the Vatican library, where he spoke about the MS with Mgr. Ruysschaert. This event is described in more detail here.

When I was, a few weeks ago, in the Vatican Library, I found out that the Cipher Manuscript comes from the library of the Collegium Romanum, which was housed in 1911 in the Mondragone Monastery in Frascati. The Vatican Library bought the whole collection and the Cipher Manuscript with the other 17 illuminated manuscripts are still listed in the inventory. This inventory was printed by Ruysschaert – Codices Vaticani latini 11414 – 11709.
In 1963 we were in Rome and I visited Monsignor Jose Ruysschaert at the Vatican library. I knew that he had published the catalogue of the Mondragone library and I hoped to get information about the Cipher manuscript.

These two reports are not fully consistent: in one the year appears to be 1962 and in the other 1963. Furthermore, in one there is the suggestion that he learned about Villa Mondragone from Ruysschaert, while in the other it appears as if that was his prior knowledge or assumption. In May 1962 Kraus was one of the participants of a trip to Italy that was organised by the Grolier Club (of which he was a member) (8), and the visit to the Vatican Library took place on 22 May. It is logical that the letter to Friedman, written only briefly after the event, has the correct year. This inconsistency does require us to treat his reports with some care, and we will come back to this further below.

1.2.3. First summary

There are some common points, and some inconsistencies in the above. What clearly emerges from his own words and actions is that Voynich was only allowed to acquire the set of books and manuscripts under promise of secrecy, and that he always stuck to that.

It must be stressed that this secrecy did not specifically concern the Voynich MS, but the entire collection that he had acquired (see note 1). This is clearly reflected in the above-mentioned letter about the Boccaccio MS of the University of Chicago (9). His secrecy is confirmed by material now preserved in the Beinecke Library. Some of the documents have comments written in pencil saying "safe to keep" or "don't destroy this" (10), showing that other material must have been destroyed.

1.2.4. The year of the discovery: 1911 or 1912?

The year in which Voynich 'discovered' the MS is traditionally reported as 1912, and this is the year that he mentioned in his 1921 publication (see above). At the same time, the letter from ELV (see note 7) says "1911 (or about)", and the 1917 letter from Voynich to Wilkins says "six years ago", implying 1911. Kraus’ letter to Friedman also mentions the year 1911. Finally, Ruysschaert (1960) (11) writes "towards 1912" (from his French: "vers 1912"). We cannot yet resolve this uncertainty, and I will always write 1911-1912. It is of course quite possible that his involvement in the acquisition spanned the years 1911 to 1912.

1.2.5. The main inconsistencies

The main inconsistencies in the various reports from Voynich are the following.

What further complicates matters is that Voynich was a man with a very lively fantasy. This was already pointed out by Rafal Prinke (2012) (12), and we find more proof of it in Kennedy (2016) (13). Both aspects have been reflected in Voynich's biography: we find that he loved to exaggerate both the details of his life (wandering for months through a Mongolian desert) and the details of his books (supposed illustrations from the hands of such famous artists as Giotto and Mantegna) (14).

In view of all this uncertainty, let us not try to jump to conclusions now, but look at other evidence first.

1.3. Additional documentary evidence

1.3.1. What Voynich didn't say: the library of P. Beckx

The manuscripts that Voynich acquired had bibliographical paper slips attached to them, which he removed and hid. They were found in the London shop by Herbert Garland in 1937, sent to Anne Nill in the US and are now preserved in the Beinecke Library. As far as I know, Voynich never mentioned or showed these to anyone. An example of these bibliographical slips is shown below.

It says ex Bibliotheca privata P. Petri Beckx, and Petrus Beckx S.J. was the General Superior of the Society of Jesus when the society was suppressed in 1873. These paper slips are discussed in a dedicated section in the parallel page, with an additional short analysis, which shows conclusively that the collection of manuscripts, from which Voynich was allowed to acquire a subset, belonged to the Society of Jesus. At the same time, the earlier princely and ducal owners of these manuscripts that Voynich mentioned on several occasions were not an invention. These were the owners of the manuscripts before they entered the Collegium Romanum Library, and another section of the same page shows that each of the names in Voynich's letter to Prof. Wilkins (as cited above) is attested.

This collection of manuscripts disappeared from sight around 1870-1873, when the Society of Jesus was suppressed and their libraries were confiscated. Three of the manuscripts in this collection had been consulted in the Collegium Romanum library before this suppression (15), and for two of them, namely two manuscripts that originate from the library of Mathias Corvinus, their disappearance has been recorded by contemporary sources. The special case of these two manuscripts is discussed in more detail throughout this page, starting with a first dedicated section below.

The main part of this collection went to the Vatican library. Bignami Odier (1973) (16) records that this happened in 1912, while Franz Ehrle S.J. was prefect of the library.

1.3.2. The reason for Voynich's secrecy

Voynich gave two possible reasons for his secrecy. The first was that he was obliged to maintain secrecy about the sale by the guardians (i.e. sellers) of the manuscripts. The second, later reason was a commercial one, namely that he was still hoping to return to this place to buy more manuscripts. It was already mentioned on the parallel page that in the manuscripts preserved in the Vatican the name of Beckx has been erased, while on the slips we still have from Voynich it is perfectly legible. This is demonstrated below.

This means that the erasure was not done before the sale, but by the Vatican library after the sale. This need for the Vatican to hide the origin of the manuscripts tells us that the entire sale must have been done in confidence. That means that Voynich's original story (which is also reflected in the letter of ELV) must be the correct one. An additional confirmation of this secrecy and the corresponding conclusion is presented further below.

1.3.3. About Voynich's "discovery"

There exists a catalogue of a collection of Jesuit manuscripts for sale to the Vatican, written in 1903, that includes almost all of the manuscripts acquired by Voynich. It has been described in some detail here. This must be the inventory that Kraus referred to in his letter to Friedman mentioned above. The existence of this catalogue clearly shows that the part of the story of Voynich, where he says that he discovered the manuscripts in chests of which the owners did not know what they contained, is not true. It can only be part of a 'cover story', one he needed in order to fulfil his promise of secrecy. Here again, the information provided by ELV in her letter, namely what Voynich told her in confidence, fits exactly with the information from this catalogue. He must have been invited to acquire a number of the manuscripts. Did this take place in Frascati, or in an Austrian castle?

The Jesuit father Joseph Strickland (17), who was the intermediary for the sale according to ELV's letter, was an alumnus of the nobile collegio Mondragone. From 1903 to 1911 he was working in Florence, where Voynich was operating one of his book stores since 1908. Some letters from Joseph and Paul Strickland (Joseph's brother, also alumnus of Villa Mondragone) written shortly after the sale of the manuscripts to Voynich are preserved in the Beinecke. They have been transcribed here. While they don't provide any real insight in what happened, two of them have a Villa Mondragone letterhead. We may only surmise that it was on this basis, combined with the mention of the '(castle?) at Frascati' by ELV, that Kraus wrote to Friedman that the location of the sale was Villa Mondragone. However, he may have had other sources that we don't know about.

We can still learn more about this episode from additional historical records, first of all a letter written by Paul Pierling S.J..

1.3.4. The confiscation of Jesuit libraries in 1873

An important witness of the suppression of the Society of Jesus and the confiscation of their property during the reign of P. Beckx S.J. was the Jesuit Father Paul Pierling (1840-1922), who was the secretary of the Assistant for Germany in the Curia Generalis (18) and who was based there (in the Casa Professa, annexed to the Gesù church) from 1871 to 1876. He recorded some of the events in a letter. Following are some excerpts of it (19) (my annotations in square brackets).

It was as late as 18 October [1873] that Father vice-superintendent of the Gesù received the official communication that announced the transfer of ownership [of the Casa Professa] on the 20th of the current month.
In order to know exactly what was the point, we thought it would be better to ask for some explanations on the way the seize had to be done. The notary answered that each religious person was allowed to keep all his personal properties, but that the community properties were transferred to the state. For lack of instructions, he was unable to resolve the doubt brought up by P. Rubillon about assistants libraries, but, three days later, the positive answer came back and each Assistant was authorized to take away his own books.
We walked immediately towards the great library. The absence of catalogue caused a surprise, which ended when genuine acts proved that the catalogue never existed. Copies of these acts were taken and the Piemontese seals closed the doors above which we can see St-Ignatius of Manrèse, with the caption: “Liber exercitiorum S.P.I. bibliothecas Societatis aperuit”. The library of the Duchess of Saxony, which must be transferred by will to the Emperor of Austria, was sealed by a secretary of the Austrian legation, some days later.

Here we clearly see the origin of the 'Private library of P.Beckx'. It was a ruse which allowed the Jesuits to preserve books from their libraries from confiscation by the state. In Carini Dainotti (1956) (20) we read that Beckx was formally allowed to keep 4000 books related to theology, church history and philosophy. In addition, she says, P.Beckx took 60 cases out of the Casa Professa. It should not automatically be assumed that all books that now show stickers saying Ex bibliotheca privata P.Petri Beckx were really part of his private library at this time. The stickers say "from the private libary..." meaning that these stickers were added after the books had been removed from this (real or hypothetical) library, and they may very well have been an additional safety measure to protect books that had already been put in hiding.

We find these stickers:

  1. attached to the bibliographical paper slips preserved in the Beinecke library
  2. in the manuscripts preserved in the Vatican and described by Ruysschaert, though they have been partly erased. Examples of both were shown here
  3. in a collection of more than 2000 manuscripts preserved in the Historical Archives of the Pontifical Gregorian University in Rome, the so-called Fondo APUG. This collection includes the Kircher letters. An example of a sticker from this collection (below) shows that they were often applied directly to the initial pages of the MS.

1.3.5. Collegium Romanum library shelf marks

The above three sets of books and manuscripts were preserved in the Collegium Romanum library (Bibliotheca Maior) which is to be distinguished from the library of the Casa Professa. What happened to the Casa Professa library mentioned by Paul Pierling S.J. is not known to me. The origin of these three collections is demonstrated by the identification of the original Collegium Romanum shelf marks that have been written on them in various places. Most particularly they have been written in pencil on the reverse of the bibliographical slips of the first two collections. See for example "4 c 62" in >>MS Vat.Lat.11543 ), and similar codes (4, followed by a character c-f, followed by a number) on many of the Beinecke slips. A few are also written in the margins of the 1903 catalogue, and Ruysschaert mentions them in the introduction to his catalogue.

These codes match the type Se >>as discussed on this page. In addition, in van Mater Dennis (1927) (21) we read that the Marcanova MS of the collection bought by Voynich was seen in the Collegium Romanum library, with shelf mark "4 F 44". Another MS that was acquired and sold by Voynich was seen in 1870 by the Hungarian historian Flóris Rómer, who reports that it had shelf mark "4 f 45" (22).

So, what happened with the books and manuscripts saved by the Jesuits in or before 1873, and in particular the collection including the Voynich MS? This is quite a complicated part of history, and the few cases of moves of archives and libraries that I have been able to extract from various sources may be used to show this.

1.3.6. The remarkable story of the 'Ripostiglio'

The main library of the Collegium Romanum was confiscated, which means not only the books, but also the building itself, which was simply converted into the new state library. Many books and manuscripts were salvaged by moving them out and hiding them. Additionally, an important collection was also hidden inside the building. It is not clear when this was initiated, but this collection of books and manuscripts was stored in a room that has become known as the Ripostiglio which was locked and hidden behind a trap door (23).

It was discovered in 1877. The most important manuscripts in this collection were transferred to the state library where they now form the Fondo Gesuitico. None of the manuscripts from this collection had a "P. Beckx" sticker attached to it. The most valuable item was a Muretus autograph, but it also included five autograph manuscripts of Kircher. This clearly shows that Kircher's library had been integrated into the Collegium Romanum library by then.

The less interesting part of this collection was moved to an attic in the Collegium Romanum building, the so-called soffitta, and largely forgotten. Later, this collection was given back to the Jesuits, who integrated it into the historical archives of the Gregorian University.

1.3.7. Further acts of preservation in 1873

In a newspaper article from the Journal de Lyon of 29 October 1873 (cited and transated here), we read that 144 Jesuits had to leave Rome. 50 of them moved to two Villas that the prince of Torlonia had placed at their disposal: one in Castel Gandolfo, the other on the ancient territory of Bola, between Praeneste and Tivoli (24). Several were accepted at the college of Mondragone, in Villa Borghese in Frascati. We further read in the biography of Beckx (25) that on 13 October 1873 the historical Jesuit novitiate of St.Andrea al Quirinale was forced to close and had to be evacuated within two weeks. Prince Alessandro Torlonia immediately offered to continue the activities in his Villa in Castel Gandolfo.

Finally, we read in the preface of Chan (2002) (26):

The authorities of the Order made an attempt to save the Archives from any harm. They were first transferred to the basement of the Palazzo Torlonia on Via della Riconciliazione (27) and in 1873 to the attics of the German College which at that time was located in the Palazzo Borromeo on Via del Seminario near St. Ignatius Church.

It is clear that Prince Alessandro Torlonia (1800-1886) played a significant role in helping the Jesuits in 1873, and we need to look at this more closely. However, let's first briefly turn to the library of the Duchess of Sachsen that was also saved from confiscation, as already mentioned above in the letter of P.Pierling S.J..

1.3.8. The library of the Duchess

Petrus Beckx, the general of the Society of Jesus, was personally responsible for securing another important library from confiscation by the Italian state, namely the library that was described above as the library of the Duchess of Sachsen. Nowdays, it is more generally known as the Bibliotheca Rossiana (28).

The bibliophile Giovanni Francesco de Rossi (1796 – 1854) collected a significant library of books and manuscripts with the financial support of his wealthy spouse Louise Charlotte de Bourbon (1802 – 1857), Duchess of Sachsen (from her first marriage). De Rossi insisted with his wife that, in case of his death, this collection of over 10,000 items should not be dispersed but remain intact. After De Rossi died, his widow remarried, and in order to avoid problems in case of her own death, she decided to donate the entire collection to the Jesuits in Rome, who stored it in the Casa Professa.

The donation, which took place in 1855, was governed by a formal donation contract, a document signed by herself and by P. Beckx, which stated among others:

This document was considered binding, not only by the Society of Jesus, but also by Austria and it would play a decisive role in the vicissitudes of the library.

During the first 18 years after the donation, while the collection was in the Casa Professa, it was completely inaccessible. At this time, this collection was known as the Biblioteca della Duchessa di Sassonia. It was one of two libraries preserved in the Casa Professa, the other one being the main Jesuit library (29).

While, in 1873, the newly formed Italian state confiscated all libraries owned by the Society of Jesus, some considerable parts of at least the Collegium Romanum library escaped from confiscation. The remainder was transferred into the Italian National Library in Rome. For the library of the Duchess, who had already died in 1857, one of the clauses in the contract had come into effect, and the Austrian ambassador to the Vatican agreed with P.Beckx that the entire collection should be transported to Austria. Initially, possible locations for the storage of this collection were explored by both parties, and Malta was proposed by the Jesuits as an interesting option, but eventually discarded in favour of Austria.

The library of the Duchess was packed into 53 boxes (30) and moved just a few hundred metres, from the Casa Professa to the Palazzo Venezia, which was the residence of the Austrian ambassador. The transportation to Austria took place in 1877, initially to the sacristy of the Jesuit Church near the old University in Vienna. This location eventually turned out to be too humid for the valuable collection, and so, after another 18 years, in 1895 the collection was moved to a more appropriate location: the Jesuit College in Vienna’s 13th district: Wien-Lainz. From this time onwards the collection was known as the Biblioteca Rossiana. At this time it contained approximately 9000 items, including about 1200 manuscripts, 2500 incunables and some 5300 mostly valuable later prints. The collection was arranged on 23 bookshelves and was available for consultation by historians.

In 1912 there was talk of selling the library, and both antiquarian book dealers (31) and major European libraries were interested, but this sale did not take place because of legal concerns related to the contract of the Duchess with the Jesuits. Finally, in December 1921, the entire collection was moved from Vienna to the Vatican, and incorporated into the Vatican Library as the Fondo Rossiano, where the books and manuscripts received new shelf marks, and where they are still preserved today. This transfer involved difficult negotiations, since the Italian state was still very interested in Jesuit property that they considered subject to confiscation. This is nine years after the sale of the Jesuit collection that included the Voynich MS, and it clearly shows that the confidentiality of that sale in 1912 was justified.

1.3.9. The library of the King - Famous Corvinus manuscripts in Rome

The famous humanist library of King Matthias Corvinus of Hungary, and its destruction and the dispersion of its books in the first half of the 16th century, has been a topic of great historical interest for Hungarian researchers. The history of two manuscripts from this library, that were already mentioned briefly above, sheds some more light on the events we are investigating. In 1867, a librarian of the Roman Casa Professa wrote to the Hungarian historian and priest Vilmos Fraknói that his library contained a collection of books of the Duchess of Sachsen that should be sent to the emperor of Austria, and this collection included a MS originating from king Mathias Corvinus (32). This prompted the historian Flóris Rómer to travel to Rome in 1871 and take photographs of a set of four Corvinus manuscripts known to have been in Rome. These photos were published in Rómer (1871) (see note 32), and concerned the aforementioned MS (a missal) in the library of the Duchess, a breviarum preserved in the Vatican library (33), and two manuscripts in the Jesuit library in the Collegium Romanum: a Cicero MS and a MS of Didymus Alexandrinus and other texts.

This publication written in Hungarian became well known among historians in Hungary, but was hardly known outside. One of the two manuscripts in the Collegium Romanum contained what was judged to be the most life-like extisting portraits of the King and his wife, Queen Beatrix (see below, or see >>here for modern digital scans).

It prompted later researchers of the library of Corvinus to go looking for these manuscripts in Rome, but they went in vain, e.g. János Csontosi in 1886 (34) and Wilhelm Weinberger in 1908 (35). The latter reports that he had gone to see the missal in the Vienna Jesuit college. He writes that the other two from the Collegium Romanum, like many other books from the Collegium Romanum, should have been moved to the Vittorio Emanuele library in Rome. However, they were not to be found there.

Next, in 1912, these two manuscripts surfaced in Hungary, where they were offered for sale by the Florence book dealer Tammaro De Marinis. The manuscripts were recognised immediately, and the historian and politician Albert De Berzeviczy was greatly interested in acquiring them. On 26 June 1912 he gave a lecture about the importance that these two manuscripts returned to Hungary. Also this lecture was published in Hungarian only (36). However, already by July 1912 these two manuscripts were sold to Pierpont Morgan through one of his favourite dealers in Rome: Alexandre Imbert. De Marinis' partner Vittorio Forti remembers these details in a letter to H.P. Kraus in 1975 (37). Forti writes about his trip to Hungary, where the archbishop had hoped to raise the money to buy these books. The archbishop was none other than Vilmos Fraknói, who had been informed about these manuscripts 45 years earlier, as mentioned above! Forti also writes that these manuscripts came from Wilfrid Voynich and they paid him 300,000 Lire for the pair.

According to an unknown source quoted by the Morgan library, the binding of one of these two manuscripts should be identical to that used by De Rossi for his entire collection (38). The Morgan library was so kind to send me an image of this binding, and it could be verified that this is not the case (39). That these two manuscripts were stored in the Jesuit college of Wien-Lainz seems to be reported in Hevesy (1923) (40), a reference I have not yet been able to consult. It was written after the manuscripts were already sold to Morgan. It is quite possible that the association of these two manuscripts with the collection of De Rossi in Wien-Lainz could have been suggested in part by Voynich's story referring to an Austrian Castle.

To conclude: what happened is that two manuscripts that were of great historical interest for Hungary disappeared in 1870, and Hungarian researchers were looking for them in Jesuit libraries in Rome. When the collection in which they were contained was sold to the Vatican, these two manuscripts (and a few others) ended up in the possession of a private book dealer (Voynich), and a partner of him (De Marinis) immediately took them to Hungary with a view to selling them.

2. Voynich's involvement

2.1. Two related questions

Voynich's involvement is a combination of two mysteries that are likely related. The first is why it took from 1903 to 1912 to complete the sale of the manuscripts of the Collegium Romanum. The second is why, in a deal between the Society of Jesus, and the Vatican library (whose prefect was also a Jesuit: Franz Ehrle S.J.), a private book dealer should become involved. This is especially surprising since the sale had to be done secretly. This secrecy is confirmed by the fact that the Vatican has tried to remove traces of the origin of the collection by erasing the name of Beckx from the manuscripts, as already discussed above.

2.2. Acquisitions by the Vatican Library

No records of the conditions of this sale have been found until now, but there is an interesting publication by the aforementioned prefect of the Vatican library: Franz Ehrle S.J., who was responsible for the introduction of this collection into the Vatican library. In this publication, written just a few years after this sale (41), he explains how difficult it is to estimate the value of any manuscript library, due to the individual value of each and every manuscript. Using the example of the acquisition of the Borghese libary that was initiated in 1891, he explains that his method is to divide all books into a few different classes based on their perceived artistic and scientific value (from high to low), and to estimate a value of each group separately, taking into account the number of items it includes.

He also explains that the price to be offered for the collection depends very much on competition from other potential buyers. The best case, he says, is when only Roman antiquarian book dealers are interested. It gets worse when there is an interest from private collectors, Roman scientific institutes, foreign antiquarians or institutes, or even governments.

The Borghese library, which included a manuscript collection of around 400 items mainly on parchment, was finally sold to the Vatican for 210,000 Lire. The very important library of the Barberini, of which Ehrle estimated the value at 750,000 Lire, was sold to the Vatican for a bargain 500,000 Lire.

It remains to be understood how the value of the Lira varied from the 1890's to 1912, but we know from the letter of Forti quoted above that Voynich was paid 300,000 Lire (by his buyer De Marinis) for just two manuscripts from the Jesuit collection. We therefore see that there was a very significant competition to the Vatican library in this instance. We can also clearly see that the group of manuscripts that Voynich acquired was the group of the most valuable manuscripts, almost all on parchment and mostly with decorated initials and other illustrations.

2.3. The two Corvinates again

The two manuscripts mentioned here are the two Corvinates described above. Hungarian researchers had been looking for the Didymus MS, with its famous portraits of Mathias and his wife, throughout the period that this MS was in hiding, both before and after 1903, the year in which the catalogue for the sale to the Vatican was composed. We may speculate that the Jesuits were aware of the monetary value of these and other manuscripts, and that the price they were expecting could be problematic for the Vatican.

It is equally speculation that this is the reason why a private bookseller was engaged. When Voynich was allowed to acquire and sell some of the most valuable manuscripts from the selection, he was faced with the problem of how to sell these two Corvinates without associating them with the Collegium Romanum library. He immediately passed these two manuscripts to De Marinis, and Voynich's association with De Marinis in this matter seems to have remained a secret until well after Voynich's death.

While the dates are not yet firm, it seems that De Marinis immediately proceeded to presenting them to the Hungarians, together with his partner Forti, in June 1912. We don't know whether he knew about their Jesuit origin from Voynich or not, but he inevitably found out as soon as they showed them to the Hungarians.

For all the time that Voynich boasted about his valuable manuscripts, e.g. during his exhibitions in the US in 1915, and during the newspaper interviews he gave, he never mentioned these two Corvinates.

3. Investigation into the location

3.1 Introduction

Several tentative locations where the collection may have been hidden were mentioned above. Further hypotheses may be formulated based on other historical evidence. These are further analysed in the following.

3.2. Voynich's "Austrian Castle" story

Could the items marked "from the private library of P.Beckx" (estimated between 2000 and 3000 items) have been stored in the college in Wien-Lainz, that also hosted the Biblioteca Rossiana? This is of course suggested by Voynich's "Austrian castle" story, and information contained in the Morgan library suggests the same. The college was located in a former Jagdschloss so it would be justified to call it a castle. Some further suggestions in this direction are found in Grafinger (1997) (see note 28). Following is a translation of footnote 34 on p.104:

The Jesuits possessed two libraries in the Provincial House of Rome [casa professa]: on the one hand the Bibliotheca Rossiana, on the other hand their own library, for which the general requested intercession by the Austrians, since it would certainly be affected by a confiscation of the Italian authorities. Cf. report of Hübner to foreign minister Andrassy of 22. X 1873 (HHStA, PA XI 219, Nr. 29, f. 174r) (42); in addition La Capitale. Gazzetta di Roma Anno 4 Nr. 110, Friday 17 Oct. 1873, 2.

This suggests that P. Beckx was indeed considering help from the side of Austria for his own library. Furthermore, with respect to the Bibliotheca Rossiana, we read on p.111:

The General of the Jesuits, now residing in Florence, was asked by a representative of the Austrian-Hungarian embassy to the Vatican at which location outside Italy the library should be placed. For this, four locations were under discussion: Malta, Innsbruck, Kalksburg and Vienna. Initially, a transfer to Malta was considered. However, P. Beckx rejected this option out of consideration for the Austrian emperor, and in his answer of 15 September 1877 decided in favour of the Jesuit house in Vienna.

From this, we know that Beckx favoured three locations in Austria for the Bibliotheca Rossiana, namely the Jesuit colleges in Kalksburg (near Vienna), Innsbruck and Vienna itself. The last, as we have seen, was actually a church, and this is the location where the library was moved after a few years.

Of the three sites mentioned by Beckx for reception of the Bibliotheca Rossiana, Kalksburg looks most like a castle, as shown by a photo from 1900:

Of all other Jesuit sites in Austria, Freinberg is most like a castle, as shown by a photo from 1920:

Interestingly, Joseph Strickland studied in the Jesuit college of Feldkirch sometime between 1870 and 1875 (43), and around the same time teachers at this college included Franz Xaver Wernz (the Jesuit General in 1906-1914) and Franz Ehrle (prefect of the Vatican Library in 1895-1914), i.e. two of the key people related to the sale of the manuscripts of the Collegium Romanum to the Vatican Library) (44). However, all of this is almost certainly coincidental.

An additional intriguing detail was already mentioned above, namely that the catalogues of the Morgan library, which describe the two Corvinus manuscripts that originate from Voynich's acquisition, say that these manuscripts come from the Jesuit college in Wien-Lainz, i.e. where the Bibliotheca Rossiana was stored. Could this be evidence that also the collection including the Voynich MS was hidden there after 1873?

On the one hand, the story of Voynich that the manuscripts were stored in a castle in Austria is quite plausible, given the historical evidence related to Beckx' interactions with the Austrians, and the move of another library that had been stored in the Casa Professa in 1873 to a castle in Austria. It seems hard to imagine that Voynich could have invented such a story which coincidentally matches these records. On the other hand, all the other elements of his story that could be verified turn out to be false. He certainly did not discover the collection in chests of which the owners were unaware what they contained, and his detective story related to correspondence leading him to the discovery becomes nothing more than a fairy tale. If the 'Austrian castle' is indeed nothing more than a cover story, Voynich possibly had some help from Strickland in putting it together, as Strickland should have been well aware of the Bibliotheca Rossiana in Wien-Lainz and its history (45).

Finally, an important piece of additional information is that the 1903 catalogue of these manuscripts has an Italian title and the only named person mentioned in it is an Italian Jesuits. This is further evidence that the collection was not in Austria but in Italy. With this, let us leave Austria and turn back to Italy.

3.3. Back to Italy

3.3.1. Archive material in the Roman Province

Sometime before 1884 the Jesuit bibliographer Carlos Sommervogel was tasked by P.Beckx to issue a new version of De Backer's complete Jesuit bibliography (46). The first two issues were from the brothers Augustin and Alois De Backer, both Belgian Jesuits. Sommervogel already assisted in the preparation of these issues (47). By 1886, Sommervogel realised that important references for him were contained in the hidden archives of the Society. He temporarily obtained access to some documents of these archives, and from this episode we know that they were stored somewhere in the Roman province (48). The third issue of the Bibliothèque de la Compagnie de Jésus (49) started appearing in 1893.

Importantly, this huge bibliography does not mention the Carteggio Kircheriano, which consists of 14 volumes now in the Fondo APUG and with the typescript label Ex bibliotheca privata P.Petri Beckx. The Jesuit bibliographer Sommervogel did not know about their existence!

As regards the collection of 380 manuscripts acquired by the Vatican (and Voynich), the Jesuit historian Miquel Batllori S.J. declared many decades later, in 1962 (50), that he had not been able to find any detail about the sale of the manuscripts to the Vatican library, or about their previous whereabouts, despite searching for it in the Roman Archives of the Society (ARSJ).

These two points show on the one hand that archive material was stored somewhere in the Roman province, but on the other hand that the items labelled as from the private library of P.Beckx were indeed completely hidden from sight, even to Jesuit historians.

3.3.2. Castel Gandolfo and the prince of Torlonia

As mentioned above, prince Alessandro Torlonia (1800-1886), a close personal friend of Petrus Beckx S.J., helped the Society of Jesus in 1873 by hosting people, a school and Jesuit documents in the various dwellings he owned inside and outside Rome. In June 2015 I learned from the very helpful staff in the Historical Archives of the Pontifical Gregorian University in Rome, that the collection called Fondo APUG, which includes a.o. the Kircher correspondence, was moved back to Rome in 1919, and that it is also still known as the "Castel Gandolfo collection", as demonstrated by notes in some of the manuscripts (51). This very strongly suggests that this collection was indeed stored in the Villa of Prince Torlonia in Castel Gandolfo, before being moved back to Rome in 1919. Since both this collection and the collection of 380 old manuscripts originate from the Collegium Romanum library, and both have the same "P.Beckx stickers", it seems quite possible that they would have been moved to Villa Torlonia at the same time.

Now where was the building of Torlonia's Villa in Castel Gandolfo? In literature, two such buildings are mentioned. One is known as Villa Carolina, and the other as the Villa dei Gesuiti. Both were acquired independently by Giovanni Torlonia (1755-1829), and inherited by Alessandro's older brother Carlo. Upon Carlo's death in 1848 they both befell to Alessandro. The building in which Alessandro agreed to host the Jesuit novitiate was the Villa dei Gesuiti, which derives its name from the fact that in the past it had belonged to the Society of Jesus. It was, however, taken from them in 1773 (52). A photograph of the building, made before 1902, is shown below (53).

Its location both on a map of 1913 and a modern satellite view is shown below.

Both Villas are visible in the aerial picture below.

In 2019 I received confirmation from a researcher at the historical archives of the Gregorian University in Rome that this Villa definitely hosted the collection of manuscripts that included the Kircher correspondence. In 1919 this collection was transported back to Rome, and it eventually became the Fondo APUG in the University. However, there is still no specific evidence that the collection of old manuscripts that was sold in 1912, which included the Corvinus manuscripts and our Voynich MS, was equally preserved in this Villa in Castel Gandolfo.

3.3.3. Villa Mondragone

We are still faced with several options: the collection of manuscripts including the Voynich MS may have been stored only in the Villa Torlonia in Castel Gandolfo; it may have been there first, but moved to Villa Mondragone in the course of the sale to the Vatican; or it may have been in Villa Mondragone ever since 1873. It may still have been somewhere else altogether.

Let's review the evidence that Voynich acquired the manuscripts in Villa Mondragone. The letter from ELV, which seems reliable since most other statements in it could be confirmed by independent evidence, clearly says 'Frascati', which is a distinct place from Castel Gandolfo. Also, Kraus wrote in his letter to Friedman:

when I was, a few weeks ago, in the Vatican Library, I found out that the Cipher Manuscript comes from the library of the Collegium Romanum, which was housed in 1911 in the Mondragone Monastery in Frascati. The Vatican Library bought the whole collection and the Cipher Manuscript with the other 17 illuminated manuscripts are still listed in the inventory. This inventory was printed by Ruysschaert – Codices Vaticani latini 11414 – 11709. And on page vii it is mentioned that the Cipher manuscript, together with others, was sold by the Jesuits to Voynich

One could interpret this in different ways. It is clear that Ruysschaert must have told Kraus that the manuscripts come from the library of the Collegium Romanum. Now did Ruysschaert also say that this was hosted in the Mondragone, or is this Kraus' own addition? Villa Mondragone is not mentioned anywhere in Ruysschaert's catalogue, and as we saw above, the Jesuit historian Miquel Batllori, who collaborated with Ruysschaert in its preparation (54), did not know anything about the location in 1962. When he then writes that the various manuscripts are still listed in the inventory, it is clear that he refers to the inventory drawn up in 1903, indicating that Ruysschaert would have shown it to him.

In 1873 Villa Mondragone was owned by Marcantonio Borghese, who was also supportive of the Society of Jesus. Just one year earlier, his son Giulio had married Alessandro Torlonia's only remaining daughter Anna Maria, after which Giulio assumed the Torlonia family name. The two princes were therefore closely associated and may well have cooperated during these events.

3.3.4. The library of the Duke

There is a third location that presents itself, and this derives from a remark made by Tammaro de Marinis, italian bibliophile, who became intimately involved in Voynich's deal with the Society of Jesus right from the beginning. Seven of the manuscripts that Voynich acquired from the Jesuits were immediately passed to him, and appear in his 1913 catalogue (55), including the two extremely valuable Corvinus manuscripts. In this context he was already mentioned a few times in this page.

As shown on the parallel page, his 1913 catalogue does not mention Voynich at all, which is consistent with the secrecy that must have governed the agreement between them. However, in his 1947 / 1954 work, written many years after Voynich's death, he clearly states that he obtained two of the manuscripts in that catalogue from Voynich. He seems to have decided that this was no longer a sensitive piece of information. Interestingly, he also writes that these books originate from the collection of: "Henry Benedict Stuart, Cardinal of York, Bishop of Frascati, passionate collector of manuscripts, which was left to the bishopric".

At first sight this seems wrong, because we know for certain that these manuscripts were in the Collegium Romanum library. Their bibliographical slips have been preserved and they appear in the 1903 catalogue. The catalogue of the Duke's library has been published (56) and it does not contain manuscripts with these two titles. However, the library of Henry Benedict Stuart could refer to the collection of manuscripts, but also to the location (building). The latter can be identified with certainty, and is an annex to the Gesù church of Frascati, as shown below.

Let's analyse the possible accuracy of this information. De Marinis felt at liberty to divulge the information, that was secret until then, that he obtained these books from Voynich. This means that this is highly unlikely to be an invention to avoid telling the truth. It is more likely what he believed to be the truth. In addition, Voynich had told ELV that the manuscripts were in Frascati, but that information could not yet have reached De Marinis in 1947/1954 as ELV's letter was only opened in 1960. Therefore, it appears to be a second more-or-less independent identification of Frascati as the location of hiding. I write more-or-less because both probably derive directly from Voynich.

The location in Frascati does not necessarily have to be a castle, because in ELV's letter (above) she puts a question mark after that, indicating that she is confused about this, and it may be caused by Voynich's mention of a 'Castle in Southern Europe' in his 1921 presentation.

This new suggestion is certainly still only speculative, and the experts who should have the best knowledge about these events, namely the historians of the history of the Roman Jesuits, and the author of the publication of the Duke's library catalogue, have no evidence and are highly skeptical about this hypothesis (57).

On the other hand, there is first (yet incomplete) evidence that Wilfrid Voynich never set foot in either the Villa Torlonia in Castelgandolfo or in Villa Mondragone. This derives from diaries of both Jesuit establishments. For the case of Castelgandolfo this is undoubtedly true, since this certainly housed important Jesuit documents in hiding, and only selected Jesuits were allowed inside (58). Joseph Strickland, on the other hand, appears several times in the records of both houses. There is still considerable documentary evidence that can be further researched.

4. Summary and tentative conclusion

4.1. General

In (or before) 1873 two collections of manuscripts were removed from the Collegium Romanum library, and stored outside Rome. The larger collection of more than 2000 items was moved to Villa Torlonia in Castel Gandolfo. The smaller collection of 'old' manuscripts including the Voynich MS also stayed in Italy and logically it would have gone the same way, but we don't yet have documented evidence for this. It was decided to sell the latter collection to the Vatican in or around 1903.

4.2. Location of the collection including the Voynich MS

If the collection of old manuscripts including the Voynich MS was in Castel Gandolfo before, then, in the course of this sale, the collection would have been moved to a less dangerous place for the Jesuits, either Villa Mondragone or another place in Frascati. The sale (to the Vatican and Voynich) was completed in 1912. The other, larger collection was never intended to be sold. It was moved to the German college in Rome in 1919, where it remained hidden and inaccessible for another decade (59).

Following is a graphical representation of the various moves of Jesuit library material. A similar figure could be drawn for the various moves of Jesuit archive material. All information leading to it has been presented on a dedicated page.

Vicissitudes of the Society of Jesus.

In this illustration, blue boxes refer to Jesuit collections and red boxes to other collections. Orange arrows are 'involuntary' moves, typically confiscations. The box for Villa Mondragone still bears a question mark, for the reasons stated above.

The paths of the various manuscripts originating from Kircher's library can be drawn against this overview. A group of 19 of his manuscripts, including his complete correspondence but also some other autographs, is now preserved in the Fondo APUG in the historical archives of the Gregorian University. Another 5 Kircher manuscripts are now preserved in the 'Fondo Gesuitico' of the national library of Rome, as already explained above. The result is shown below, giving us a complete trail of the Voynich MS from Kircher to Voynich

On a minor note, we are left to wonder why Voynich changed his original cover story of an 'Austrian castle' into a 'castle in Southern Europe' at a later date. Ellie Velinska has provided a plausible explanation for this. Voynich had been denounced and became a target for investigations by the FBI in 1917, because he had been talking freely about obtaining manuscripts with secret codes in Germany and Austria, during the time of World War I (60). Because of this, not only he, but several other people in his circle were investigated. This may have led him to change his story.

4.3. Voynich's involvement

Voynich definitely did not discover the collection himself and it was never 'lost'. The sale of the collection of old manuscripts (to the Vatican and Voynich) was completed in 1912. Voynich became involved most probably in 1911, through the mediation of Joseph Strickland S.J. He had to promise never to tell anyone what was the origin of the collection. When Voynich was allowed to acquire the manuscripts, he seems to have considered it already the property of the Vatican (61). The secrecy that Voynich had to promise was clearly imposed on him and not his own invention, since we saw that in the Vatican Library, most of the stickers 'Ex bibliotheca privata P.Petri Beckx' have been damaged in such a way that the name Beckx is unreadable (62). ELV's letter also hints at this:

Whether this [inserted: secrecy] was because of the strained relations with the Quirinal I do not know.

However, the case of the two Corvinus manuscripts shows that this secrecy was very difficult to maintain. In De Marinis' 1913 catalogue he never mentions Voynich or the Collegium Romanum, but there are references to two Hungarian papers that would allow anyone to realise that this is where these manuscripts came from. But this seems not to have happened. In any case it seems clear that the value of these manuscripts, and possibly a desire to return them to Hungary, played a major role in the involvment of a private book dealer.


I am grateful to the Historical Archives of the Pontifical Gregorian University (Archivio storico della Pontificia Università Gregoriana) in Rome, in particular Lorenzo Mancini, for the valuable information about their history; to Christine Grafinger of the Vatican library for many helpful suggestions, and to William Voelkle of the Morgan Library for additional helpful information. Several newspaper clips were found by Ellie Velinska. The location of Villa Torlonia in Castel Gandolfo was found with significant help from Michelle Smith.


The total collection he acquired included between 20 and 38 manuscripts, and possibly up to 23 printed books. The page mentioned in the abstract explores the composition of the collection of manuscripts acquired by Voynich on that occasion, with the result presented in a table.
See Voynich (1921), with a link to an online copy of the paper.
I am grateful to Ellie Velinska for pointing me to most of these references.
A carbon copy of it has been preserved in the Beinecke Rare Book and MS Library of Yale University. The letter has also been published in Wilkins (1927) (which also has a link to an online copy of this book). It has been transcribed here. The list of previous owners mentioned by Voynich is discussed in detail here.
It is MS "J14"in the table on the parallel page.
The letter is preserved in the Beinecke Rare Book and MS Library of Yale University. Edith Rickert was working together with John Manly.
This letter is also preserved in the Beinecke library, and it is discussed here.
A detailed report of the Grolier Club tour of Italy has been published in Austin (1963).
His secrecy surrounding the discovery has sometimes been used as an argument that the Voynich MS would be a fake perpetrated by Voynich himself, but such an argument is clearly a fallacy, as his secrecy concerns the entire collection of several dozen manuscripts, all genuine.
An example is shown here.
See Ruysschaert (1960).
See Prinke (2012).
See Kennedy (2016).
The supposed illustrations by Giotto are in a MS sold to the Morgan library. They are now attributed to Roberto d’Oderisio. The supposed illustration by Mantegna is in a Valturius MS sold eventually to the Library of Congress. Both manuscripts came from the same collection as the Voynich MS (items J23 and J36 in this table).
Two Corvinus manuscripts and a Marcanova MS, which have been labeled J20, J22 and J30 in the table of manuscripts.
Bignami Odier (1978).
See his summary biography
The assistant for Germany was Fr. A. Anderledy S.J., who later became General Superior of the Society.
The letter was written in French and has been included in several sources, e.g.: Martina (1973). X. Ceccaldi translated parts of the letter into English, as described in detail on a page at his website hosted here.
See Carini Dainotti (1956)
See van Mater Dennis (1927)
See Rómer (1871), where he is referring to the Didymus MS (J22), about which much more will be said in the course of this page.
The present description is a summary. More details about it may be found here.
Modern Poli. The villa, known as Villa Catena, was later acquired from Torlonia by Dino de Laurentiis. It is presently in a bad state. About Villa Torlonia in Castel Gandolfo more will be said in the following.
Verstraeten (1889).
Chan (2002)
The palazzo Bolognetti Torlonia, which was demolished in 1903.
The main source for this is Grafinger (1997).
Grafinger (1997), p.104, n.34.
These would appear to be the 60 cases reported by Carini Dainotti (1956)
Specifically, the famous Munich antiquarian Rosenthal.
As reported in Rómer (1871).
This MS is Urb.Lat.112
In Csontosi (1886)
See Weinberger (1908)
See De Berzeviczy (1912)
Preserved in the Pierpont Morgan library in New York. I am grateful to W.Voelkle for a copy of it.
This rebinding by De Rossi of all his books and manuscripts with a common cover was reported in Gollob (1908), and can be observed in the >>digitised examples at the Vatican Library
This was confirmed by Dr. Chr. Grafinger of the Vatican Library (priv.comm.).
See: de Hevesy (1923).
See Ehrle (1916).
Reference is to the national archives in Vienna: 'Haus- Hof- und Staatsarchiv, Politisches Archiv'.
From his biography written by P. Vito Bondani SJ. (see also here)
Source: >> wikipedia
In addition, Ellie Velinska informed me that Voynich's business associate in Vienna: Amelia Sarah Levetus, has published a book about the history of Napoleonic confiscations of books and transfer of them to Paris. This may have been another source of inspiration for Voynich.
The main source for this episode is: Danieluk S.J. (2006), who used original archive material from the ARSJ in Rome.
See: A. and A. De Backer (1861).
His request was for bibliographical notes about the Collegium Romanum library made by the librarian P. Beorchia. The Roman province included the city of Rome, Frascati, but also Florence/Fiesole. I personally believe that the most likely location was the Collegium Germanicum, where material had been moved after temporary storage in the Palazzo Bolognetti Torlonia.
Sommervogel and De Backer (1893)
In Batllori (1962).
Priv. comm. by I. Pedretti and L. Mancini Historical Archives of the Pontifical Gregorian University / Roma, Archivio storico della Pontificia Università Gregoriana. It is also reflected >>in this blog entry (in Italian).
The Villa achieved some minor fame because Goethe spent three weeks there in October 1787, and he wrote about falling love there.
The photo is published in Del Pinto (1902), of which a summary by Nemi of 1903 is >>visible online here. I am grateful to Michelle Smith for help in locating it. It is entirely possible that, when this photo was taken, the Voynich MS was inside this building.
As stated on p.xxv of the preface to the catalogue.
See De Marinis (1913).
See M. Buonocore (2007).
On the other hand, there is a very attractive, yet completely inconsequential aspect about this hypothesis. This is that, on the eve of the 2012 Voynich MS conference in Villa Mondragone, some of the main proponents of this event: Nick Pelling, Philip Neal, Rafal Prinke, Klaus Schmeh, Rich Santacoloma, myself and several others, were enjoying beer and ice cream at a first get-together on the small triangular square right next to this building (see picture in main text).
I am grateful to Lorenzo Mancini for this very relevant information. It should also be noted that the Vatican Library prefect who secured the collection, Franz Ehrle, was also a Jesuit.
To the extent that the Jesuit historian Fr. Tacchi Venturi S.J. pretended not to know the whereabouts of the Kircher correspondence when he received an inquiry from Henri Hyvernat on behalf of Voynich. Tacchi Venturi was later instrumental in retrieving a collection of Jesuit documents from the National Italian archive, which had been confiscated in 1870.
Described in great detail at the >>excellent site of Colin MacKinnon.
As evidenced by the letter written by ELV.
Another example of this is provided by the incunable >>Inc.II.630, which, according to the 1903 catalogue, was also sold to the Vatican by the Jesuits. One may even observe it (upon close inspection) in >>MS Vat.Gr.2365 which is one of the Greek manuscripts sold at the same time, as indicated in Ruysschaert's catalogue. In this case the entire sticker was removed, but traces of it are still visible.


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