Name
- Hedworth, Henry, Captain1
- Heighington, Francis, servant to L Wren, fl 16551
- Herbert, Thomas, Colonel; Clerk of the Council for Ireland1
- Hill, Richard, Commissioner for Prizes1
- Howard, Charles, 1st Earl of Carlisle1
- John II Casimir, King of Poland1
- John IV, of Portugal1
- Johnson, John, (?) royalist pseudonym1
- Johnston, Archibald, Lord Warriston; Scottish statesman1
- Komensky, Jan Amos, alias Comenius; writer on education, d 16701
- Leopold William, Archduke of Austria, Governor of the Low Countries1
- Leslie, Alexander, 1st Earl of Leven1
- Lilburne, Thomas, army officer and MP, d 16651
- Lindsay, Alexander, 1st Earl of Balcarres1
- Litcott, John1
- Loménie, Henri Auguste, Comte de Brienne, Secretary of State1
- Longvilliers de Poincy, Robert, French colonial official, 1611-16611
- Louis XIV, King of France, 1638-17151
- Ludlow, Edmund, Lieutenant-General regicide1
- Léger, Antoine, the elder; Pastor at Geneva, 1594-16611