Name
- Boislabé, Secret agent at Paris(?)1
- Brudenell, Thomas, 1st Earl of Cardigan 16611
- Brydges, Henry, 2nd Duke of Chandos1
- Burnaby, John, Envoy to Switzerland1
- Bury, Theophilus1
- Cappel, Jacques, French Protestant scholar1
- Cardonnel, Adam, 1st Duke of Marlborough, sec to John1
- Carleton, Messenger from English envoys at Cologne1
- Cavendish, Henry, Viscount Mansfield1
- Cecil, Robert, Viscount Cranborne, 1st Earl of Salisbury, 1563-16121
- Chappell, William, Bishop of Cork and Ross, d 16491
- Charles I, King of England, Scotland and Ireland, 1600-16491
- Charles II, of Spain, 1661-17001
- Chetwynd, Walter, 1st Viscount Chetwynd (1717), Envoy at Turin1
- Churchill, Sarah, wife of John 1st Duke of Marlborough1
- Coke, Elizabeth, Lady Hatton, wife Of Sir Edward, Lord Chief Justice1
- Cole, C-1
- Colepeper, Frances, wife of Colonel Thomas Colepeper1
- Commonwealth, England1
- Cooper, Arnolt1