What caused king Arthur's death?

Answer 1

King Arthur's death is shrouded in legend and varies among different sources. In the most popular accounts, particularly in Sir Thomas Malory's "Le Morte d'Arthur," he is mortally wounded in a battle against his nephew, Mordred, at Camlann. After the battle, Arthur is taken to the isle of Avalon to heal, but it is implied that he ultimately dies there. His death symbolizes the end of an era and the passing of chivalric ideals.