Name
- Commonwealth, England1
- Cooper, Arnolt1
- Cori, A-1
- Cormac, Successor of S Ciaran1
- Coronini, - de Salburg1
- Cotton, Thomas, 2nd Baronet, 1594-16621
- Covel, John, traveller, botanist and college head, 1638-17221
- Coventry, Henry, Sec of State, 1619-16861
- Crisolini, Alessandro1
- D'Avenant, Henry, Envoy to Frankfort and Genoa1
- Darell, Nathaniel, correspondent of Prince Rupert, Count Palatine of the Rhine, fl 16731
- Dayrolle, James, diplomat, fl 1702-17391
- Dietrichstein, Maria Anna Margaretta, correspondent of William, Count Bentinck, fl 17501
- Dixon, Robert, correspondent and father-in-law of Sir Richard Brawne, fl 16281
- Duncon, Eleazar, clergyman and chaplain, ?1597-16601
- Duport, James, classical scholar and Dean of Peterborough, 1606-16791
- Este, Carlo Emanuele, Marchese di Borgomanero, Spanish Ambassador in England1
- Esterhazy, Marie Anne Louise, née Lunati-Visconti, wife of Paul Anton, Prince1
- Evans, Richard, of Add MS 347311
- Fearmer, Henry, correspondent of Prince Rupert, fl 1673-16791