Name
- Campbell, Frederick, MP1
- Campbell, Henrietta al Harriot, daughter of John 2nd Earl of Breadalbane, Lady of the Bedchamber to Princess Amelia1
- Campbell, John, Marquess of Lorne, 5th Duke of Argyll 17701
- Carmichael, William, Archbishop of Dublin, d 17651
- Cathcart, Charles Schaw, 9th Baron Cathcart, army officer and ambassador, 1721-17761
- Catherine II, Empress of Russia1
- Chalmers, George, banker of Edinburgh1
- Champigny, Jean de, Colonel Chevalier1
- Charles III, of Spain, 1716-17881
- Charles, Duke of Brunswick-Lüneburg-Wolfenbü... of Add MS 578291
- Choiseul, César Gabriel de, Comte de Choiseul, Duc de Praslin 17621
- Cleaver, William, Bishop of Bangor and of St Asaph; Principal of Brasenose College Oxford, 1742-18151
- Clive, Robert, 1st Baronet Clive of Plassey, administrator and army officer, 1725-1774, http://isni.org/isni/000000...1
- Colleton, James Edward, MP1
- Congreve, William, dramatist1
- Conway, E, Mrs1
- Conway, Henry Seymour, Field-Marshal1
- Conyers, John, MP1
- Cotes, Humphrey, wine merchant, brother of Vice-Admiral Thomas Cotes MP1
- Cotton, John Hynde, 4th Baronet, MP1