 A few Norse longships were reinforced with iron armour along the waterline as early as the 11th Century, such as the "Iron Beard" of Eric Hakonsson of Norway.Peter IV of Aragon (1336–87) protected his ships with screens of hides against missile fire, as the Roman navy had done earlier.A ship with iron plating on the ribs was commissioned in 1505 by Juan Lope de Lazcano, a Basque admiral of the Spanish Fleet.