King Arthur Badon, where he is said to have single-handedly killed 960 men. Recent studies, however, question the reliability of the "Historia Brittonum". The other text that seems to support the case for Arthur's historical existence is the 10th-century "Annales Cambriae", which also link Arthur with the Battle of Badon. The "Annales" date this battle to 516–518, and also mention the Battle of Camlann, in which Arthur and Medraut (Mordred) were both killed, dated to 537–539. These details have often been used to bolster confidence in the "Historia"<nowiki>'</nowiki>s account and to confirm that Arthur really did fight at Badon. Problems have been
Battle of Camlann negotiations between Arthur and Mordred. Many die and Arthur kills Mordred in a final duel, but is himself mortally wounded. Arthur tasks his knight Griflet (or Bedivere) with returning his sword Excalibur to the Lady of the Lake, and the king is taken to Avalon. The "Mort Artu" account of Arthur's last battle was adapted into many subsequent works, including the Old French Post-Vulgate Cycle, the Middle English Stanzaic "Morte Arthur", and Thomas Malory's influential Middle English work "Le Mort d'Arthur". These works all locate the battle at Salisbury. In a popular motif, introduced by Geoffrey in "Historia" and elaborated