The "Santa Anna", a lead-sheathed carrack of the Knights Hospitaller, is viewed by some authors as an early form of armoured ship. The "Galleon of Venice", the Venetian flagship which did serious damage to the Ottoman fleet at the Battle of Preveza (1538), was sheathed with plate. During the siege of Antwerp in 1585, the Dutch defenders partially protected their man-of-war "Finis Bellis" with iron plates. In 1782, Chevalier d'Arçon attacked Gibraltar with floating batteries featuring a 1.8 meter thick armour out of wooden planks, iron bars and leather, but met little success.