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No. 12 · St Petersburg · 5 July 1803
R1035 · Legatie Rusland · codebook, 1803

St Petersburg → The Hague · numerical nomenclator · 5 July 1803

Dirk van Hogendorp to Maarten van der Goes, dispatch no. 12

Dirk van Hogendorp
fromDirk van Hogendorp
Maarten van der Goes
toMaarten van der Goes

Nationaal Archief, 2.01.08, Ministerie van Buitenlandse Zaken 1796–1810, inv. 318 · DECODE R1942 · ciphered dispatch no. 12, two pages, 286 groups

DECODE lists the dispatch as non-decrypted, meaning no decipherment is on the record. The code was not decoded here either. Its subject is known from print: J. A. Sillem’s 1890 biography cites this dispatch for Hogendorp’s attempt, after Vorontsov rebuffed him, to reach Emperor Alexander I through the Dutch-born Russian general Jan Pieter van Suchtelen. The exact wording is unknown.

Daniel Bourdeau · posted · updated

Method: not solved · Extent: text not obtained

Credits · J. A. Sillem (key or decipherment used)

At a glanceNot solved · text not obtained

The document
Dispatch no. 12 of Dirk van Hogendorp, Batavian envoy at St Petersburg, to Maarten van der Goes, 5 July 1803, in numerical code groups.
Where
Nationaal Archief, 2.01.08, inv. 318; DECODE R1942. The matching codebook is R1035 (Legatie Rusland, inv. 228).
The cipher
Mostly one- to three-digit groups marked with bars, ticks, dots and waves. The numeric transcription has 286 groups and 218 distinct values.
How it was tried
Not attacked. The subject was identified from Sillem’s 1890 biography, whose footnote cites “dispatch of the same day, no. 12, ciphered”.
What it says
Dissatisfied with Chancellor Vorontsov, Hogendorp sought another route to the Emperor through General Van Suchtelen. This is a paraphrase of Sillem, not decoded text.
Still open
No group is decoded. The marks need verifying against the scans, and R1035 (partial transcription, 1,849 entries) must be applied group by group.

01 The document

Dirk van Hogendorp, the Batavian Republic’s envoy in Russia, sent the dispatch from St Petersburg to Maarten van der Goes, the Batavian agent for foreign relations. The clear address names both men and the first leaf carries the dispatch number. The rest is in numerical code groups, mostly of one to three digits, distinguished by bars, ticks, dots and wave-like marks above the figures.

Opening of Hogendorp's dispatch no. 12, with the clear address and ten lines of marked numerical cipher groups
Dispatch no. 12, 5 July 1803: the clear address to Maarten van der Goes followed by the marked numerical groups. Image: Nationaal Archief, The Hague, 2.01.08 inv. 318, dispatch no. 12, via DECODE R1942.

The numeric-only transcription has 286 groups and 218 distinct bare values. That count ignores the marks, although 73 with a bar and 73 with a wave are different codebook entries. A transcription with the marks exists in draft; the pale marks still need a second check against the scans.

02 Sillem’s account, 1890

J. A. Sillem narrates Hogendorp’s first approaches in St Petersburg on pp. 151–153 of his biography. Dispatch no. 10 of 5 July supplied the argument for a Russo-Batavian commercial treaty: Russia should have an immediate interest in the Batavian Republic’s continued existence as an independent state, and concluding the treaty would demonstrate that interest.

Vorontsov was not persuaded. Sillem continues:

Hogendorp vond zijne houding althans “zo wonderlijk” dat hij naar andere kanalen zocht om den Keizer onze belangen voor te dragen. Hij meende een gelukkigen greep gedaan te hebben door de tusschenkomst in te roepen van den Generaal van Suchtelen, Nederlander van geboorte, die in russischen dienst tot Opperbevelhebber der genie was opgeklommen, en het volste vertrouwen genoot van Czaar Alexander, met wien hij dagelijks omging.

The footnote attached to that passage reads: “Rijksarchief. Dep. van denzelfden dag No. 12 gecijferd.” In English: “National Archives. Dispatch of the same day, no. 12, ciphered.” The manuscript supplies No. 12; Sillem supplies the content; and his preceding note fixes “the same day” as 5 July 1803.

03 The content of the dispatch

What is established is the subject and the argument. Vorontsov’s attitude and answer struck Hogendorp as so strange that he sought another route to the emperor. He chose Van Suchtelen because the general’s Dutch origin, senior position and daily access to Alexander made him a plausible intermediary. The object was to place the Batavian Republic’s interests (in context, its independent survival and the desired commercial treaty) before the emperor by a channel outside the chancellor.

A concise English reconstruction is:

Chancellor Vorontsov’s attitude and answer appeared so strange to me that I sought another way to bring our interests to the emperor’s attention. I believe I have found it in General Van Suchtelen, Dutch by birth, commander of the engineers in Russian service, who enjoys Emperor Alexander’s full confidence and sees him daily.

This is an editorial paraphrase of Sillem’s account. It is not a quotation from a decoded text. Connectives, spelling, the exact request made of Van Suchtelen and any material Sillem omitted remain unknown.

04 The matching codebook

DECODE R1035 is catalogued as Legatie Rusland, inv. nr. 228, codebook, 1803. Its twenty images show the same system used in R1942: numerical entries extended by superposed marks, with values for letters, syllables, word parts, whole words, names and phrases. DECODE’s downloadable partial transcription contains 1,849 distinct entries.

It places the letter in the documented 1803 Russian-legation system and is the route to an exact decoding. It does not by itself decode the dispatch: the CSV is partial, and the letter’s marks must be transcribed accurately before the corresponding rows can be selected.

05 Evidence for the identification

  1. Number. The leaf itself says No. 12.
  2. Date. The docket and DECODE record give 5 July 1803.
  3. Source citation. Sillem assigns the Van Suchtelen paragraph to the ciphered no. 12 of that same day.
  4. Separation from no. 10. His preceding footnote names no. 10 as the source for the commercial-treaty exchange with Vorontsov. The two dispatches cannot be conflated.
  5. System. The 1803 Russian-legation codebook R1035 matches the manuscript’s marked numerical format.

The identification needs no cryptanalysis. It rests on a contemporary archive number, visible on the cipher sheet, that a printed account repeats while stating what the dispatch reported.

06 What remains

07 Sources

The scans, numeric and marked transcriptions, partial R1035 table, evidence note and machine-readable profile are in the repository folder targets/R1942/. The modern reconstruction is editorial and must not be cited as Hogendorp’s verbatim plaintext.