Name
- Cawton, Thomas1
- Chamberlain, Charles1
- Chetwynd, W-, of Add MS 158571
- Clarke, George, of the Admiralty1
- Clerke, Samuel1
- Clifford, Thomas, Lord Clifford; of Add MS 158571
- Coote, Charles, of Add MS 158571
- Coryton, John1
- Cottereau1
- Coventry, William, of Add MS 158571
- Craven, John, Lord Craven of Ryton1
- Cressett, James, of Add MS 158571
- Crewe, Ranulph1
- Croix, François Seran de la1
- Cröy, Ernest B., Duc de1
- Cullum, Dudley, 3rd Baronet1
- Curtius, William, of Add MS 158561
- Devereux, Walter, correspondent of William Sands, fl 16361
- Digby, John, 1st Earl of Bristol, diplomat, 1580-16531
- Digby, Kenelm, Knight, natural philosopher, diplomat and courtier, 1603-16651