Name
- Christian VI, King of Denmark1
- Clayton, Jasper, Brigadier-General, and Lieutenant -Gov. of Gibraltar1
- Clotta, Louis, French Teacher in England1
- Cocchi, Antonio, Professor of Anatomy at Florence1
- Colloredo, Rudolf Joseph, Count, Imperial Vice-Chancellor1
- Colman, Mary, wife of Francis Colman1
- Compton, Charles, 3rd son of James, 3rd Earl of Northampton, Envoy Extraordinary at Lisbon1
- Corbett, William, Musician to George II1
- Cowper, Anne Florence, wife of George Augustus Frederic, 6th Earl Cowper1
- Dachselhofer, Johann Rudolf, Swiss army officer and courtier, 1691-17561
- Darlugadin, correspondent of Thomas Robinson, fl 17321
- Dietrichstein, Léopold Philippe, Count, correspondent of Thomas Robinson, fl 17431
- Dorte, -, secretary to Baron de Burmania, fl 17521
- Douglas, Robert, correspondent for Thomas Robinson, fl 17381
- Draper, Nathan, secretary to the English Embassy at Vienna, fl 17431
- Dutch East India Company, 1602-17991
- Dyckmans, A J, correspondent of Thomas Robinson, fl 17361
- Edgcumbe, Richard, 2nd Baron Edgcumbe (1758)1
- Edwards, John, Governor of the Levant Company1
- Eguiluz, Spanish Ambassador at Vienna1