In the early Middle Ages in Hispania, armour was typically made of leather, with iron scales. Head protections consisted of a round helmet with nose protector (influenced by the designs used by Vikings, who attacked during the 8th and 9th centuries) and a chain mail headpiece. Shields were often round or kidney-shaped, except for the kite-shaped designs used by the royal knights. Usually adorned with geometric designs, crosses or tassels, shields were made out of wood and had a leather cover.