Name
- Christian IV, of Denmark and Norway3
- Christie, Alexander, of Calicut3
- Colbatch, John, physician3
- Cole, William, MD3
- Coley, Henry, Astrologer and Mathematician3
- Colladon, John, physician and political agent, 1608-16753
- Constable, John, Physician to the Grand Duke of Tuscany3
- Cordonnier de Saint Hyacinthe, Hyacinthe, called also Thémiseuil de Saint Hyacinthe3
- Cromwell, Oliver, Lord Protector of England, Scotland and Ireland, 1599-1658, http://isni.org/isni/000000...3
- Croyden, Thomas, MD of Padua; Fellow of Trinity College, Cambridge3
- Cruden, Alexander, Bookseller3
- Curll, Edmund, bookseller, of London3
- Davies, G, of Birmingham, physician, fl 17013
- Deering, George Charles, physician and botanist, c 1695-17493
- Devereux, Robert, 2nd Earl of Essex, soldier and politician, 1565-1601, http://isni.org/isni/000000...3
- Devereux, Robert, 3rd Earl of Essex, parliamentarian army officer, 1591-16463
- Dickinson, Edmund, physician and alchemist, 1624-17073
- Dolnus, Martin, physician and correspondent of Sir Hans Sloane, fl 1713-17183
- Doppelmayr, Johann Gabriel, mathematician and physicist, ?1676-17503
- Douglas, John, of Antigua, correspondent of James Petiver, fl 1712-17143