a legendary king of the Britons (possibly based on a historical figure in the 6th century but the story has been retold too many times to be sure); said to have led the Knights of the Round Table at Camelot

King Arthur is an important figure in the mythology of Great Britain, where he appears as the ideal of kingship both in war and peace. He is the central character in the cycle of legends known as the Matter of Britain. He was said to be born in the 5th century.There is disagreement about whether Arthur, or a model for him, ever actually existed, or whether he is a mythic figure who has been given a historicised setting.http://www.arthuriana.co.uk/historicity/arthur.htm Thomas Green, "The Historicity and Historicisation of Arthur"..

King Arthur is a film first released in the United States on June 28, 2004, dubbed as "The Untold True Story That Inspired The Legend" by Touchstone Pictures.

King Arthur, subtitled "The British Worthy", is an opera in five acts, with a libretto by John Dryden and music by Henry Purcell. The opera was first performed at the Queen's Theatre, Dorset Garden, London, in early summer of 1691. The plot is based on King Arthur's battles between the Saxons and the Britons, rather than the legends of Camelot (although Merlin does make an appearance).

King Arthur is a video game of the action-adventure genre released in 2004 by Krome Studios.