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
The Winter King (novel) of Clyddno Eiddyn. Gorfyddyd is furious that Merlin might destroy his chance of becoming High King. He refuses Merlin's requests and readies his troops again for battle. Merlin, turning to Derfel, informs him that the Black Shield Irishmen currently allied to Gorfyddyd would switch sides and give Arthur victory. Sure enough, as battle resumes, the Black Shields attack Gorfyddyd and give the victory to Arthur. In the aftermath, Gorfyddyd is fatally wounded but uses his last breath to curse Arthur and declare Guinevere a whore. Cuneglas apologizes to Arthur for his father and swears an alliance will exist between Dumnonia