Read further · read 54.8% · key from adjacent plaintext · partial

Noailles to the Cardinal de Lorraine, Venice, 13 November 1558

Three short cipher blocks in François de Noailles’s Venice letter (BnF fr. 3151 no. 33), with the court’s decipherment in the margins, half hidden in the binding on one page. Michael Brackx recovered the key from those margins: 244 of 260 signs have a value and the blocks read in part. Andrew Beling checked the transcription sign by sign on the images (270 of 272 agree, none differs). Three stretches of the last block and the signs under the binding stay open.

Date
1558
Read now
54.8% of the cipher tokens give sense
Write-up
noailles1558.html
Files
targets/noailles1558
Open gaps
code groups openneeds the archivetoo short to break

Hand this page to your AI agent

Give your agent (Claude, ChatGPT or any assistant that can open web pages) this address and ask it to do the task on the page:

https://dbourdeau.github.io/cyphersolver/further/noailles1558.html

Or copy the block below into the chat. It is the whole task: the reading, every open gap, what has been tried, the steps, and how to report back.

TASK: take a partial decipherment further: Noailles to the Cardinal de Lorraine, Venice, 13 November 1558
This page: https://dbourdeau.github.io/cyphersolver/further/noailles1558.html

You are helping a public research project finish reading historical cipher letters. This one is read in part:
the key works, but some pieces are still open. Your job is to close one or more of the open gaps below.

THE READING
  Write-up:   https://dbourdeau.github.io/cyphersolver/noailles1558.html (read it first: how the text was read, the key, the reading)
  Date:       1558
  Outcome:    key from adjacent plaintext · partial
  Read now:   54.8% of the deciphered cipher tokens give sense (pieces below may be untouched)
  Files:      https://github.com/dbourdeau/cyphersolver/tree/main/targets/noailles1558 (NOTES.md, key, transcription, reading, scripts)

OPEN GAPS (from NOTES.md, "## Remaining gaps")
  1. [needs-physical-access: needs a new source] start of each marginal gloss line on f. 60r, and with it the five large signs that open block B and the four after "affaires" in block A - blocker: needs-physical-access; swallowed by the binding; needs the page opened flat
  2. [open-codes: doable now] f. 60v C2, C4, C5 unread groups: Beling's cribs from the outer gloss (11 Nov 2026, `beling/README.md` section 5) give tentative `+o` z, `Ob` r, `lp` ost, but C2 "u l", C4 "e r o" and C5 "t h ?" do not meet the gloss as read - blocker: open-codes; open work, not only an image limit: the cribs exist and the decode does not yet meet them; next is a re-reading of gloss lines 4-8 (soft at Gallica's native resolution; a sharper image from the BnF would help) together with a re-look at the signs of those three stretches
  3. [too-short: needs a new source] 16 sign tokens of 15 labels without a value, and 12 tokens on tentative values (11 labels) - blocker: too-short; each open label occurs once (zb twice) and each tentative value rests on one context; 272 signs give no second occurrence to test them

ALREADY TRIED (from NOTES.md, "## Escalation")
  [x] siblings: fr. 3151 searched; the Seure letters (nos. 39-44) are a different cipher; fr. 3151 no. 14 (Noailles to the King, 17 Oct 1558) is in clear (Brackx, issue #113)
  [x] clear-pages: the marginal decipherment of the time found on f. 60r; the f. 60v outer-margin decipherment of block C (Brackx, issue #113; checked here on view 62)
  [x] known-keys: fr. 20974 Guise alphabets of 1556, 31 tried, none fits (Brackx, not checked here); the Cardinal de Lorraine's own key (pp. 41-44) is of the same sign kind with other values (Brackx)
  [x] print: Ribier II has no Nov 1558 Noailles letter (Brackx); Charrière II searched on the Internet Archive OCR (Beling, 11 Nov 2026): it prints Noailles's Venice letters of 7 and 15 Nov 1558, not this one of 13 Nov; the parallel phrase on p. 505 is in the letter of 7 and 20 Oct 1558. The Noailles ambassade edition (Vertot, 1763) not opened; it covers the embassies in England
  [x] key-rebuild: Brackx, gloss alignment + French 5-gram (Montaigne); key r5 gives 244 of 260 non-null signs a value; the search itself not rerun here, the decode from his key reproduced
  [x] retry: f. 60v gaps C2, C4, C5 retried against the outer gloss (Beling, 11 Nov 2026): three tentative values, three stretches still unmatched

STEPS
0. Set up. If you can run a shell, fork and clone the repository and work inside it:
     git clone https://github.com/dbourdeau/cyphersolver.git
   Then read, in this order: CONTRIBUTING.md (how a contribution is sent and credited); README.md, sections
   "Repository layout" and "Conventions" (how readings are measured and named); targets/noailles1558/NOTES.md in full, and the
   key, transcription and reading files it names; lang/README.md (shared language models).
   Work in targets/noailles1558/. Add your findings to NOTES.md under a dated heading without rewriting what is there, and
   update the "## Remaining gaps" line of every gap you close. Keep WORKLOG.md there: one dated line per step
   (hypothesis, value tried, solver run, crib, control), failures included. Do not edit docs/ (the site is generated).
   If you cannot run a shell, fetch the files from the links above and keep your work in files you send with the issue.
1. Pick a gap. Start with the ones marked "doable now" (open-codes, not-attempted, left-open): the images and the key
   are online, so they need only work. A gap marked "needs a new source" (no-key-material, too-short, illegible,
   needs-physical-access) can be closed only by something new: a key
   or a deciphered sibling found elsewhere, a better image, a printed edition or calendar, a photograph from the archive.
   For those, search for that material first, and say where you looked even when you find nothing.
2. Start from the existing key and transcription in the folder. Do not rebuild the key from scratch, and do not
   re-read parts that are already read unless you find an error in them.
3. For a code group or sign value: list every place the group occurs, show how each reads with the value you propose,
   and say what still does not fit. For a passage: re-read it at the image and give the folio and line. For a missing
   letter or leaf: say where it is held and how it can be reached.
4. Measure again. Apply the key to the whole text, write the reading file, and count the share of cipher tokens that
   give sense (not an estimate). The reading is "complete" only when (1) at least 95% of its cipher tokens give sense;
   (2) no gap is left untried; (3) every letter in it is covered; (4) what stays open is scattered code groups or names,
   or pieces blocked from outside. Otherwise it stays "partial": say which gaps are still open and why.
5. Be honest. Mark every uncertain word with [?], leave unread groups as their numbers or signs, and never fill a gap
   with a plausible guess. A gap retried and still open, with what was ruled out, is worth reporting.

REPORT BACK
With a clone: open a pull request with your changes to targets/noailles1558/. Say in the description which gaps you worked on,
  the share read before and after, and how you want to be credited (name, initials or handle, and a link).
Without one: open an issue: https://github.com/dbourdeau/cyphersolver/issues/new?template=further-reading.yml&title=Further+reading%3A+noailles1558&page=noailles1558.html
  Give the write-up, the gap you worked on (its line in Remaining gaps, or the code group, folio and line), what you
  propose, the evidence (every occurrence, the images or sources), the share read before and after, your step log,
  and the tools and AI model you used.
If you cannot open issues or pull requests, write this report for your human to send. Credit goes to the person who sends it.

Open gaps

gold can be done now: the images and the key are online, it needs only work. grey needs a new source first: a key, a better scan, an edition or the archive.

Already tried

Needs the archive

These gaps can only be closed from the original or a book out of reach. If you can visit or order, take one: all archive requests.

Send a result

One closed gap counts: a code group valued, a passage re-read, a key or clear copy found elsewhere. It is credited to you on the write-up.

Open a further-reading issueOther kinds of reportHow credit works← All partial readings