Name
- Coventry, Henry, Sec of State, 1619-16861
- Cowper, Spencer, Dean of Durham1
- Cox, Samuel, barrister, of the Inner Temple1
- Crew, Nathaniel, 3rd Baron Crew, Bishop of Durham, 1633-17211
- Crompton, Robert, of Hull1
- Cros, Josef August, correspondent of Sir Thomas Osborne, 1st Duke of Leeds, fl 16791
- Crousaz, François Noé, Major-General; in the Polish Service1
- Crowgey, William, of Penryn1
- Cunha, Luis da, Portuguese Plenipotentiary at Utrecht and Ambassador in England and France1
- Cunningham, John, of Liverpool1
- D'Arcy, John, of Dublin1
- D'Arcy, Robert, 4th Earl of Holdernesse, diplomat and politician, 1718-17781
- Dalton, John, army officer, 1726-18111
- Daniell, George, correspondent of Thomas Osborne, 1st Duke of Leeds, fl 16881
- Darcy, Mary, Countess of Holderness, wife of Robert 4th Earl of Holderness, c 1721-18011
- Darling, Ralph, Knight, army officer and colonial governor, 1772-18581
- Dashwood, Samuel, MP; of Egerton MS 33371
- Delaval, Daniel, diplomat and secretary to Sir Joseph Yorke, fl 1747-17751
- Denny, William, army officer, fl 17551
- Desmarets, Yves Marie, Comte de Maillebois, army officer, 1715-17911