Matter of Britain
Joyous Gard (French "Joyeuse Garde" and other variants) is a castle featured in the Matter of Britain literature of the legend of King Arthur. It was introduced in the 13th-century French Prose "Lancelot" as the home and formidable fortress of the hero Lancelot after his conquest of it from the forces of evil. "Le Morte d'Arthur" identified it with Bamburgh Castle.