Name
- Charles Philip, Elector Palatine of the Rhine1
- Charters at the Hague, L-1
- Chetwynd, John, 2nd Viscount Chetwynd, diplomatist1
- Cligniet1
- Coghlan, Christopher, Captain1
- Colbert de Torcy, Jean-Baptiste, Marquis, French diplomat, 1665-17461
- Coleman, of Add MS 373911
- Collins, Edward, merchant at Königsberg1
- Cooke, John, DCL, Dean of Arches1
- Courland, Duke of1
- Crawfurd, Thomas, Secretary to the English Embassy at Paris1
- Creuz, Ehrenreich Bogislaus1
- Cutler and Slater, merchants, Dantzig1
- D'Avenant, Henry, Envoy to Frankfort and Genoa1
- Danckelmann, Eberhard Christoph Balthasar, Baron von Danckelmann, Prime Minister of Prussia, 1643-17221
- Dewitz, Franz Joachim, army officer and diplomat, 1666-17191
- Douglas, James, 2nd Duke of Queensberry, politician and courtier, 1662-17111
- Duchy of Brabant1
- Erdödy, Ladislas Adam, Bishop of Neutra1
- Ferguson, William, army officer, fl 17051