20 70 53 07 40 24 42 08 … 60 24 38 04 …
Il Nuntio ha trattato col Sig.r Perez … ?
crib 43 tokens · shuffled 47–51 · no fit

Madrid → Rome · numerical cipher · 1576–77

Ormanetto and Clementino, Spain nunciature, 1576–77

Tolomeo Gallio
toTolomeo Gallio

ASV Segreteria di Stato, Spagna 10 (DECODE R117, R118). The catalogue listed two ciphertexts, one of them “possibly already deciphered on the same page”. R117 is not a cipher. R118 was transcribed but not deciphered: the clear note under it does not fit as its plaintext, and no Spain nunciature key of the 1570s was found. Whether a decipherment survives elsewhere is unknown.

Daniel Bourdeau · posted · updated

Method: not solved · Extent: text not obtained

Summary. The project catalogue (no. 239) carried these two DECODE records as nunciature ciphers of 1576 with a contemporary decipherment on the leaf. The images show otherwise. R117 (ff. 245–246) is a clear Spanish memorial about the fruits of the see of Pamplona during its vacancy of 1573–75. Its only figures are sums of ducats in Roman numerals, so there is no cipher. R118 (f. 365) holds six lines of contiguous figures, 389 digits with dotted digits and a barred 4. Below them, in another hand, is a clear Italian note: the nuncio has taken up with Antonio Pérez everything in Rome’s cipher of 19 September. The note was tested as the plaintext of the figures and does not fit: a crib aligner scores it barely better than shuffled copies of the same letters. No key for the Spain nunciature of the 1570s is on DECODE, and the 1580 Como key applied elsewhere on this site has a different structure. R118 is not deciphered.

01 The two records

R117 (ASV_i1025_SdS_Spain_10-1, two pages). Copia del Memorial dado por parte del obispo de Pamplona: the see fell vacant on 27 January 1573 at the death of Diego Ramírez. The Pope held back the bulls of the new bishop, Antonio Manrique, for nine months, and the memorial argues that those months’ fruits belong to the bishop. The right-hand column repeats the sums in Roman numerals with the Spanish thousands sign (xbnUdn L-ix, xxxbjUdn — m). Those sums are what DECODE catalogued as “ciphers within cleartext”.

Six lines of contiguous figures, then a clear Italian note in a different hand
R118, f. 365: the figures, and below them the Italian note in another hand. Image: Archivio Apostolico Vaticano, Segreteria di Stato, Spagna 10 f. 365, via DECODE R118.

R118 (ASV_i1025_SdS_Spain_10-2, one page). The figures are undated on the leaf. The note reads:

Il Nuntio ha trattato col Sig.r Perez tutto quello che V.S. Ill.ma scrive con la cifra di 19 di sett.re, il qual Sig.r ha promesso di buoni uffici al Re, et di procurare risposta, de la quale V.S. Ill.ma sarà poi sabbato avvisata.

The nuncio has discussed with Signor Pérez everything Your Most Illustrious Lordship writes in the cipher of 19 September. He has promised his good offices with the King and to obtain an answer, of which Your Lordship will be told on Saturday. The letter therefore dates from the autumn of 1576 or 1577, not from 9 January 1576, which is only the start of the volume’s date range.

02 Is the note the decipherment?

It could have been. It is about as long as the cipher (some 200 letters written out, against about 190 digit pairs), and 20 70 53 both opens line 1 and returns at the end of line 2. A search program divided the first two lines into tokens of one to three digits, aligned letter by letter with the note. It kept each token’s letter value consistent and minimised the number of distinct tokens. The note needs 43 tokens for 60 letters, and three shuffles of the same letters need 47, 51 and 48. The best alignment is also incoherent, mixing token lengths with no stable pair structure. The note is the nuncio’s clear message, written in the third person under the cipher. It is not the Rome decifrato.

The one nearby key on this site is Lasry’s reconstruction of the Cardinal of Como’s 1580 cipher to Dandini (Dandini 1580). It writes letters as two digits with an even second digit. This text has odd second digits throughout (53, 07, 03, 05), so it is not that system.

03 What remains open

04 Sources

Notes, transcription and the crib aligner: ormanetto1576/.