Name
- Gissac, Montcalm, French royalist and correspondent of Sir Gilbert Elliot, fl 17951
- Giustiniani, Nicolo, of Genoa, merchant, fl 17931
- Gower, George Granville, 1st Duke of Sutherland, politician, diplomat and landowner, 1758-18331
- Graham, Thomas, 1st Baron Lynedoch, politician and army officer, 1748-18431
- Green, Nathaniel, Consul at Oneglia, Nice and Trieste, 1745-17991
- Gregory, William, Consul at Barcelona, fl 1777-18101
- Grenville, William Wyndham, 1st Baron Grenville, politician and Prime Minister, 1759-18341
- Grimaldi, Franco, of Genoa, State Inquisitor, fl 17931
- Harriman, James, Clerk to the British Consul at Leghorn1
- Hervey, Elizabeth Catherine Caroline, afterwards Ellis; daughter of Elizabeth Hervey; wife (1798) of Charles, 1st Baron Seaford1
- Hervey, Elizabeth, widow of John Augustus, Lord Hervey1
- Hervey, John Augustus, Lord Hervey, naval officer and diplomat, 1757-17961
- Howard, Henry, 12th Earl of Suffolk, politician, 1739-17791
- Jenkinson, Robert Banks, Baron Hawkesbury, 2nd Earl of Liverpool, Prime Minister, 1770-18281
- Khevenhüller, Count, Austrian Commissary-General in Italy1
- Lindsey, Thomas, of Add MS 468221
- Liston, Robert, diplomatist; GCB 18161
- Lorraine, Ferdinand III, Grand Duke of Tuscany, prince-elector, 1769-18241
- Louis XVI, of France1
- Lángara y Huarte, Juan, Spanish Admiral1