Name
- Godfrey, John, of Hertingfordbury, correspondent of Sir Philip Francis, fl 1802-18091
- Gravier, David, correspondent of Sir Philip Francis, fl 1765-17671
- Gray, James, 2nd Baronet, diplomat and antiquary, c 1708-17731
- Grenville, Richard, 1st Duke of Buckingham and Chandos, né Temple-Nugent-Grenville; politician, 1776-18391
- Grenville, William Wyndham, 1st Baron Grenville, politician and Prime Minister, 1759-18341
- Guarini, Giovanni Battista, poet, playwright and diplomat, 1538-16121
- Hamilton, Alexander, 10th Duke of Hamilton, politician, diplomat and art collector, 1767-18521
- Harcourt, Marie François, Duc de Harcourt1
- Harris, James, 1st Earl of Malmesbury1
- Hastings, Warren, governor-general of Bengal, 1732-18181
- Hay, Edward, Secretary to Warren Hastings1
- Hervey, George William, 2nd Earl of Bristol1
- Hill, Arthur Blundell Sandys Trumbull, 3rd Marquess of Downshire, politician, 1788-18451
- Holford, George, MP1
- Holles, Thomas Pelham-, Duke of Newcastle, prime minister, 1693-17681
- Hutchinson, John, 2nd Earl of Donoughmore, army officer and politician, 1757-18321
- Inglis, George Smith, handwriting expert1
- John V, of Portugal1
- Johnson, William, 1st Baronet1
- Johnstone, James, Colonel; Governor of Minorca1