Name
- Cavalcanti, Guido, of Florence1
- Cave, Ambrose, of Add MS 358301
- Cavellyer, Hector1
- Cavendish, John, of Add MS 356391
- Cecil, Thomas, 1st Earl of Exeter1
- Cecil, William, 2nd Earl of Exeter, Lord Lieutenant of county Northamptonshire1
- Cedulini, Pietro, Bishop of Lesina1
- Celsing de), Swedish Minister at Constantinople1
- Cerisola, Genoese Minister ? at the Hague1
- Chaillion1
- Chamberlayne, Thomas, Ambassador to Spain1
- Charles Emmanuel I, Duke of Savoy, 1562-1630, http://isni.org/isni/000000...1
- Charles III, of Spain, 1716-17881
- Charles, Prince of Sweden1
- Cheap, John, Rector of Wimpole1
- Chester, John, 4th Baronet1
- Choiseul, Renaud César, Vicomte, Envoy at Turin1
- Cholmondeley, Robert1
- Christian VII, King of Denmark1
- Cicciaporci, Elizabeth, nee Stuart1