Stock Photo - Helmets from the great seals of kings and barons. William the Conqueror 1,2, William Earl of Mellent 3, son of Richard I 4, Duke of Normandy 5, Richard I 6, Ferdinand III 7, Alexander II 8, Alexander III 9, John Earl Warren 10, Robert de Ghisnes 11, King Edward I 12, Hughes Vidame de Chalons 13, Raoul de Beaumont 14, Earl of Cornwall 15 and Edward III's son Edward 16. Copperplate engraving from Francis Grose's Military Antiquities respecting a History of the English Army, Stockdale, London, 1812. Helmets from the great seals of kings and barons. William the Conqueror 1,2, William Earl of Mellent 3, son of Richard I 4, Duke of Normandy 5, Richard I 6, Ferdinand III 7, Alexander II 8, Alexander III 9, John Earl Warren 10, Robert de Ghisnes 11, King Edward I 12, Hughes Vidame de Chalons 13, Raoul de Beaumont 14, Earl of Cornwall 15 and Edward III's son Edward 16. Copperplate engraving from Francis Grose's Military Antiquities respecting a History of the English Army, Stockdale, London, 1812.