In which battle did King Arthur die?

In which battle did King Arthur die? King Arthur died, or was mortally wounded, at the Battle of Camlann.

Camlann is presented in Arthurian tradition as Arthur’s final battle, fought against Mordred or, in some versions, during a conflict involving him. Arthur kills Mordred but receives a fatal wound himself. He is then carried away toward Avalon, where some stories leave his fate uncertain.

The earliest surviving reference appears in the Welsh Annales Cambriae, which records the “strife of Camlann” in 537 and says that Arthur and Medraut fell. Later writers greatly expanded the story. Geoffrey of Monmouth placed the battle at the River Camel in Cornwall, while later French romances and Thomas Malory’s Le Morte d’Arthur often associated Arthur’s final battle with Salisbury.

Camlann is sometimes confused with Mount Badon, another famous Arthurian battle. Badon is generally described as an earlier victory for Arthur, not the battle in which he met his end. The battle’s historicity and exact location remain disputed.