Name
- Campbell, John, Lord Glenorchy, 3rd Earl of Breadalbane (1752)1
- Campbell, John, M P for county Pembrokeshire1
- Cannon, Thomas, of Add MS 355911
- Carafa, Gian Pietro, Bishop of Ostia, Pope Paul IV (1555), 1476-15591
- Card, Henry, Dr1
- Cardevac, Louis, marquis d'Havrincourt, French Ambassador in Sweden1
- Carew, Nicholas, Ambassador to the Emperor Charles V1
- Carey, Henry, 1st Baron Hunsdon, courtier and administrator, 1526-1596, http://isni.org/isni/000000...1
- Carleton, Dudley, Viscount Dorchester (1628), Ambassador to Venice and Savoy, etc1
- Carnaioli, Marquis de1
- Carpenter, George, 3rd Baron Carpenter, 1st Earl of Tyrconnel (1761)1
- Carr, J-, of Add MS 356831
- Carroll, William, of Add MS 355031
- Carteret, Edward, of Add MS 355841
- Carvajal y Lancaster, José de, Spanish Minister of State1
- Carvajal y Vargas, Josef Miguel, Duc de San Carlos1
- Carvalho e Mello, Sebastiao José de, Conde de Oeiras, 1st Marquês de Pombal1
- Cassan, Stephen Hyde, Vicar of Bruton1
- Castiglione, Giovanni Battista1
- Catherine II, Empress of Russia1