Sir Bleoberis is a Knight of the Round Table from Gannes, first mentioned by Chrétien de Troyes. His name may derive from a twelfth-century storyteller named Bleheris mentioned in several texts. Son of Nestor, godson of King Bors, brother to Sir Blamore de Ganis, and cousin to Lancelot; as Bleoberis explains the relationship, he and Blamore "be sister's …