Name
- Maria Carolina of Austria, Queen Consort of Ferdinand I of the Two Sicilies, 1752-18147
- Bathurst, Henry, 3rd Earl Bathurst, politician, 1762-18346
- Hamilton, William Richard, antiquary and diplomatist6
- Planta, Joseph, the younger, GCH, diplomatist and politician, 1787-18476
- Rolleston, Henry, of the Foreign Office5
- Stewart, Robert, Viscount Castlereagh, 2nd Marquess of Londonderry, 1769-18225
- George IV, King of Great Britain and Ireland, 1762-18304
- Vane, Charles William, formerly Stewart Baron Stewart 3rd Marquess of Londonderry4
- Arbuthnot, Charles, diplomat and politician, 1767-18503
- Bentinck, William Henry, army officer, diplomatist, and Governor-General of India, 1774-18393
- Goulburn, Henry, politician, 1784-18563
- Lushington, Stephen Rumbold, Secretary to the Treasury and (1827) Governor of Madras3
- Campbell, James, Baronet 1818, Lieutenant-General; Governor of the Ionian Islands 1814-18162
- George III, King of Great Britain and Ireland, 1738-18202
- Ludolf, Guglielmo, Conte; Sicilian Envoy Extraordinary in London2
- Romeo, Francesco, Captain2
- Ruffo, Fabrizio, Principe di Castelcicala; Neapolitan Ambassador in London2
- Somma, Tommaso di, Marchese di Circello, Neapolitan foreign minister2
- Torrens, Henry, Major-General; KCB 18152
- A'Court, Frederick Ashe, son of 1st Baron Heytesbury1