Name
- Conyngham, Jane, née Paget; wife of Francis, 2nd Marquess Conyngham1
- Conzié, Louis François Marc Hilaire, Comte, Bishop of Arras1
- Cooke, E., of Add MS 483931
- Corbara, Chev.? Casimir Raimond, Corsican refugee1
- Couper, Henry, Lieutenant-Colonel; Deputy Inspector-General of Foreign Corps1
- Crosbie, William, Major-General1
- Culverhouse, John, Captain; RN1
- Cumberland, Ernest Augustus, Duke of, son of George V of Hanover1
- Cuthbert, James Ramsey, MP1
- Daniell, Deputy Commissary-General at Constantinople, fl 18071
- Degen, Frederic, diplomat, fl 1800-18061
- Devaux, Charles, correspondent of Sir Arthur Paget, fl 18051
- Dillon, William, correspondent of Sir Arthur Paget, fl 18001
- Dimsdale and Clay, bankers? London1
- Douhet, -, Comte, French émigré and correspondent of Sir Arthur Paget, fl 18031
- Drummond and Co, bankers, London1
- Dundas, Henry, 1st Viscount Melville, lawyer, politician and statesman, 1742-18111
- Duranti, -, correspondent of Sir Arthur Paget, fl 18001
- Durazzo, Laurent, of Vico, correspondent of Sir Arthur Paget, fl 18001
- Durno, James, Knight, diplomat, 1751-18071