Name
- A'Court, William, 1st Baron Heytesbury, diplomat and politician, 1779-18601
- Bathurst, Henry, 3rd Earl Bathurst, politician, 1762-18341
- Carrascosa, Michele, Neapolitan general1
- Francis I, of Naples and Sicily1
- George IV, King of Great Britain and Ireland, 1762-18301
- Gordon, Robert, Knight, diplomat, 1791-18471
- Goulburn, Henry, politician, 1784-18561
- Hamilton, William Richard, antiquary and diplomatist1
- Ludolf, Guglielmo, Conte; Sicilian Envoy Extraordinary in London1
- Maria Carolina of Austria, Queen Consort of Ferdinand I of the Two Sicilies, 1752-18141
- Meade, Richard Charles Francis Christian, 3rd Earl of Clanwilliam1
- Pignatelli, Nicola Luigi, Commendatore; Acting Neapolitan Foreign Minister 18201
- Planta, Joseph, the younger, GCH, diplomatist and politician, 1787-18471
- Pulman, James, Richmond Herald1
- Rolleston, Henry, of the Foreign Office1
- Somma, Tommaso di, Marchese di Circello, Neapolitan foreign minister1
- Stewart, Robert, Viscount Castlereagh, 2nd Marquess of Londonderry, 1769-18221
- Vane, Charles William, formerly Stewart Baron Stewart 3rd Marquess of Londonderry1