Name
- Commun, -, of the Hague, diplomat and spy, fl 17511
- Constant de Rebecque, David Louis, Lieutenant -General, Baron de Constant de Rebecque1
- Constapel, H-, Bookseller, of Amsterdam1
- Conver, G-1
- Cornett, Jean Philippe1
- Couwenburg du Bois, Pieter, Sub-regent of the Theological College at Leiden1
- Cresset, James, Secretary to the Princess of Wales, and Treasurer to the Prince of Wales1
- Cuper, Gisbert, Professor and Burgomaster at Deventer1
- Cuylenborch, Cornelis, Secretary to the Corps des Nobles d'Utrecht1
- D'Arcy, Robert, 4th Earl of Holdernesse, diplomat and politician, 1718-17781
- Daels, Vincent, fl 16981
- Dalrymple, John, 2nd Earl of Stair, soldier and diplomat, 1673-17471
- Dalyell, James, correspondent of Count Bentinck, fl 17541
- Dalyell, Robert, correspondent of Count Bentinck, fl 17541
- Dankaerts, correspondent of William, Count Bentinck, fl Late 18th century1
- Darcy, Mary, Countess of Holderness, wife of Robert 4th Earl of Holderness, c 1721-18011
- Delvaux, Baltazar, correspondent of William, Count Bentinck, fl 17531
- Deneken, N, correspondent of William, Count Bentinck, fl 17481
- Denick, G D, correspondent of William, Count Bentinck, fl 17521
- Denis, P J, correspondent of William, Count Bentinck, fl 17541