Name
- Casoni, Filippo, Archbishop of Pirgi; Papal Nuncio in Spain1
- Chambrier d'Oleyres,, Baron -, Prussian Minister to Sardinia1
- Choiseul, Louis Marie Gabriel, Baron de Choiseul1
- Collomb, Chevalier1
- Coppa, Contessa1
- Cordon, Victor Amadeus, Marquis, Sardinian diplomat, fl 17821
- Corneck, James, Lieutenant; RN1
- Crawford, James Coutts1
- Croy, Joseph Anne Auguste Maximilien, Duc d'Havré et de Croy1
- Cuthbert, Lieut. Richard, RN1
- Cuttoli, Joseph Marie, correspondent of John Stuart, 1st Marquis of Bute, fl 17821
- Duff, James, 2nd Earl Fife, landowner, 1729-18091
- Dutens, Louis, diplomat, chaplain and writer, 1730-18121
- Forbes, George, naval officer, fl 1795-17961
- Gaillard, Gabriel Henri, Marquis1
- Godoy, Manuel, Duque del Alcudia, Principe de la Paz1
- Gore, John, army officer and correspondent of John Stuart, 1st Marquis of Bute, fl 17951
- Grenville, William Wyndham, 1st Baron Grenville, politician and Prime Minister, 1759-18341
- Hopkinson, William, of Add MS 370841
- La Michodière, ?Jean Baptiste François, Comte de Hauteville1