Republished copy of Daniel Bourdeau’s Unsolved Historical Ciphers, released under CC BY 4.0. Text unchanged; hosted by JIC alongside its translations; not an official copy by the author · View the original ↗
E o+ o φ 2 ꝑ 3 · m4 7 o · ꝝ ꝭ
Combien · que · je

Vitoria → Charles V · homophonic substitution, French · 28 May 1522

La Chaulx to Charles V, Vitoria, 28 May 1522

Charles V
toCharles V

Biblioteca Nacional de España, MSS/20212/39/1–2; DECODE R1187. The catalogue listed a Spanish cipher letter of 1 January 1522 whose content was unknown. It is a French despatch from the Emperor’s envoy to Adrian VI, written at Vitoria on 28 May 1522. The decipherment made when it arrived is filed as 39/2 and gives all five cipher passages; it was checked against the first cipher line. The key was not rebuilt, and no printed edition of the letter was found.

Daniel Bourdeau · posted · updated

Method: read from existing decipherment · Extent: complete

Summary. Charles de Poupet, sieur de La Chaulx, was sent to Spain early in 1522 to the newly elected Pope Adrian VI, who was still in the Peninsula. The 18 pages of R1187 are two items. Item 39/1 is his signed letter to the Emperor in French, dated “en vostre ville de Victoire le xxviijme de may 1522”. It has five cipher passages, marked in the margin A, b, C, D and E. Item 39/2 is a contemporary decipherment in another hand, keyed by the same letters. DECODE’s “Inline Plaintext: Yes” refers to it. The first cipher line was aligned with it here. The sign counts fit combien que je word for word, and e takes three different signs, so the cipher is homophonic and 39/2 is its decipherment. The decipherment covers all five passages. The key was not rebuilt, and no printed edition of this letter was found.
Cipher passage A of La Chaulx's letter, and the start of the contemporary decipherment of the same passage
Above: passage A in cipher (39/1, image 2). Below: the same passage in the 1522 decipherment (39/2, image 9), “A — Combien que je vouldroie mectre mon ame en gaige que vous estes la personne de ce monde quil ayme le plus…”. Image: Biblioteca Nacional de España, MSS/20212/39/1 (image 2) and 39/2 (image 9), via DECODE R1187.

01 The record

DECODE records the language as Spanish and gives 1 January 1522, the first day of its 1522 date range. Both are wrong.

02 The cipher and the check

The cipher is a substitution in cursive signs and digits, with no word division. Passage A opens E o+ o φ 2 ꝑ 3 m4 7 o ꝝ ꝭ o+ ▷ c ɗo ʆ ɗ ꝑ…. Against the decipherment that is c-o-m-b-i-e-n q-u-e j-e v-o-u-l-d-r-o-i-e. Every word gets one sign per letter, and e is written with three different signs (ꝑ, o, ꝭ). The key was not rebuilt. That would mean transcribing some 1,500 signs from 1024-pixel scans for a text that was deciphered in 1522.

03 The 1522 decipherment

Transcribed from 39/2. Grade M (moderate): transcribed from the scan, abbreviations expanded. Doubtful words are in brackets.

A. Combien que je vouldroie mectre mon ame en gaige que vous estes la personne de ce monde quil ayme le plus, mais ne doubtez que luy estre a Rome il sera sollicite et practique de tant de costez que lon luy pourroit [desmouvoir] quelque chose dont il ne se [retireroit]…

b. Sire, entant que touche le partement du pape… le lieu de Barcelone ou il entendoit assembler son armee, la peste sest mise de sorte quil fauldra quil aille a Tarragone ou a Cartagena… Il actend davoir deux caracques qui sont en ung havre vers Landelousye… et ma dit que sy voz galleres de Naples venoient, il est du tout delibere avec icelles et les nefz de dela soy [embarquer] et passer… mais il le fault tenir secret… Je suis tousjours de loppinion que vous ay escript quil ne partira de tout le mois de juing… le nombre de gens quil a entreprins de mener, que sont quatre mille hommes… il fait courre le bruit quil emmenera vingt mille…

In passage A, La Chaulx would stake his soul that the Pope loves the Emperor above anyone. He warns that at Rome Adrian will be pressed from so many sides that he may commit himself to something he cannot undo. Passage b is about the Pope’s sailing. Plague at Barcelona moves the muster to Tarragona or Cartagena. Adrian is waiting for two carracks in an Andalusian port and for the galleys of Naples, and La Chaulx does not expect him to leave before July. He will take 4,000 men and let it be rumoured that he takes 20,000. Adrian in fact sailed from Tarragona in August. Passages C–E, on money and the Cortes, the Infanta Catherine and Portugal, and the news from France, England and the Swiss, are given in 39/2 and summarised in the notes.

04 What remains open

05 Sources

Notes, the transcription and the profile are in targets/poupet1522/.