About Josué, 3rd Grail Keeper
Josué or Joshua. "The son of Brons and Enygeus, brother of Alan and nephew of Joseph of Arimathea. He married the daughter of King Kalapes of Terre Foraine, later inheriting that kingdom. He succeeded Alan as the Grail Keeper, following the normal line of descent from the Fisher Kings." (Mike Dixon-Kennedy, Arthurian Myth and Legend: an A-Z of People and Places (London: Brockhampton, 1998), 165)
His name is a form of Joshua. In L'Estoire del Saint Graal, Pelles, maternal grandfather of Galahad, is said to be the son of Pelleham, the Maimed King, son of Lambar, son of Manaal, son of Catheloys, son of Aminadap, son of Josue, son of Bron, whose wife was Enygeus, sister of Joseph of Arimathea.