Name
- Court of Rome1
- Coventry, Thomas, 1st Baron Coventry1
- Coxon, John, Captain1
- Cromwell, Oliver, Lord Protector of England, Scotland and Ireland, 1599-1658, http://isni.org/isni/000000...1
- Cueva, Alfonso della, Marquès de Bedmar, Spanish ambassador at Venice1
- Cunningham, William, of Cunninghamhead1
- D'Arcy, Robert, 4th Earl of Holdernesse, diplomat and politician, 1718-17781
- Dalzell, Gavin, 3rd Earl of Carnwath, 1648-16831
- Davidson, William, Baronet, English Resident in Holland1
- Day, Thomas, buyer of a farm in Cranleigh, fl 17831
- Dayrolle, Solomon, courtier and diplomat, d 17861
- Delaistre, -, former owner of the Hours of the Virgin and intendant of the Duchess of Savoy, fl after 15001
- Dendy, Edward, government official, ?1612-16741
- Destouches, Sieur1
- Devoy, James, correspondent of William Anne Keppel, 2nd Earl of Albemarle, fl 17521
- Douglas, A, correspondent of Sir Robert Moray, fl 1665-16661
- Drummond, James, 3rd Earl of Perth, landowner, courtier and army officer, c 1615-16751
- Duchy of Milan1
- Duchy of Montferrat, Italy1
- Duchy of Schleswig-Holstein-Gottorp1