The Saracen lord of the Rock, a British castle.
Joseph of Arimathea raised Argon from the dead after a wild lion slew him. Beholding this miracle, Argon, his brother Matagran, and all their people converted to Christianity.
See also
Sword of Resolve | The Legend of King Arthur
Source
Vulgate Estoire del Saint Graal | 1220-1235