Name
- Cotton, Thomas, 2nd Baronet, 1594-16621
- Courtin, Antoine1
- Covel, John, traveller, botanist and college head, 1638-17221
- Coventry, Henry, Sec of State, 1619-16861
- Crabb, Matthew1
- Creech, Thomas, of Add MS 347441
- Cressett, John1
- Cromwell, Henry, of Add MS 347441
- Cromwell, Oliver, Lord Protector of England, Scotland and Ireland, 1599-1658, http://isni.org/isni/000000...1
- Czartoryski, Isabella, wife of Adam Casimir,Prince Czartoryski1
- D'Avenant, Henry, Envoy to Frankfort and Genoa1
- Darell, Nathaniel, correspondent of Prince Rupert, Count Palatine of the Rhine, fl 16731
- Dauber, Is, correspondent of James West, fl 17601
- Davies, Owen, antiquary, fl 1750-17561
- Dayrolle, James, diplomat, fl 1702-17391
- Dicey, Thomas, customs officer, fl 1751-17551
- Digby, George, 2nd Earl of Bristol, politician, 1612-16771
- Dighton, Job, correspondent of Sir Richard Brawne, fl 16381
- Dixon, Robert, correspondent and father-in-law of Sir Richard Brawne, fl 16281
- Donne, John, poet and clergyman, 1572-1631, http://isni.org/isni/000000...1