Add MS 61575

Vol. CCCCLXXV (ff. 95).

(1) Letters, etc., of William Blencowe, official decipherer, to Sunderland, Addison and Pringle relating to the decipherment of intercepted letters; 1707-1710. Partly French and cipher. Partly copies. Followed (ff. 45-49) by the report of the Attorney- and Solicitor- General on Dr Bernard Gardiner's petition relating to Blencowe's fellowship of All Souls College, Oxford, 1710, and (f. 50) by a letter of Edward Willes, decipherer, 1717. ff. 1-50.

(2) Keys to ciphers used by English and Continental ministers, etc., including the Earl of Nottingham as Secretary of State, 1702 (ff. 51-52b), and the Duke and Duchess of Marlborough, circ. 1704-1713 (ff. 53-54b, 58-59b, 64-65); 1702-circ. 1718. Partly French. ff. 51-80.

(3) Letters of Capt. Moise Ceffis, Italian Imperial cipher secretary, to Sunderland, etc.; 1707. Italian, Latin and French. Partly cipher and copies. ff.81-95.

Ciphers: Intercepted Continental correspondence of Lord Sunderland, partly deciphered: 1707-1718.

includes:

• f. 1 Joseph Addison, dramatist and essayist: Letters, etc., to: 1706-1718.: Partly Fr. and Span.
• ff. 1-49 William Blencowe, Fellow of All Souls College, Oxford: Correspondence, etc., with Lord Sunderland: 1707-1710.: Partly Fr. and cipher.
• ff. 15-22b, 32-33b Hermann von Petkum, Envoy of the Duke of Holstein-Gottorp to The Hague; alias 'Le Sieur Rivièré': Correspondence of: 1709-1718.: Fr. and Germ.: Partly cipher. Copies and extracts.
• ff. 27, 38 Jean-Baptiste Colbert, Marquis de Torcy; French Secretary of State: Letters to French Ministers at Gertruydenberg: 1710.: Fr.: Mostly cipher.
• f. 34 Robert Pringle, Under-Secretary Of State: Letters, etc., to: 1707-1710.: Partly Fr.
• f. 44 Melchior de Polignac, French diplomatist; Cardinal 1713: Letters to: 1710.: Fr.: Partly cipher.
• f. 44 Claude Louis Hector Villars, Maréchal, Duc de Villars: Letters to Card. Polignac: 1710.: Fr.: Partly cipher. Copies.
• ff. 45-49 Bernard Gardiner, DD; Warden of All Souls' College, Oxford: Letter, etc., rel. to his petition: 1710, 1711.: Partly certified copy.
• ff. 45-49 Anne of England: Reports to: 1708-1710.
• ff. 45-49 Robert Raymond, 1st Baron Raymond: Report to Qu. Anne on petition of B. Gardiner: 1710.
• ff. 45-49 Sir Edward Northey, Attorney General: Reports by, mostly on petitions: 1705-1710.: Partly signed and copies.
• f. 50 Edward Willes, decipherer: Letter to Lord Sunderland: 1717.
• ff.51-52b Ciphers: Key to cipher used by Lord Nottingham: circ. 1702.
• ff.53-54b, 57-59b,62-67 Ciphers: Keys to ciphers used by Lord and Lady Sunderland and Duke and Duchess of Marlborough: circ. 1704-1713.
• ff. 55-56 Ciphers: Political and diplomatic cipher used by Lord Sunderland: 1704-1706.
• ff. 60-61, 68-80 Ciphers: French language cipher keys in Sunderland papers: circ. 1708-circ. 1718, n.d.
• ff. 81-95 Captain Moise Ceffis, Italian Imperial Cipher Secretary: Letters to Lord Sunderland, etc.: 1707.: Ital., Lat. and Fr.: Partly cipher and copies.
• f. 85 Joseph I; Emperor of Germany: Correspondence with Qu. Anne: 1704-1710.: Ital., Fr., Lat. and transl.
• ff. 85-89 Anne of England: Letters to: 1704-1711.: Mostly Fr., Lat., Ital., Germ., Dutch, Span., Portug. and Arabic.
• ff. 91-95 Frederick I of Prussia: Letters to M. Ceffis: bef. 1713.: Fr.: Deciphers.