Acorante, Acourant
Knight of the Round Table, brother of Danubre the Brave, and kinsman of Lancelot.
During the Grail Quest, he was slain by Arpian of the Narrow Mountain, who hated Lancelot’s family for their prowess. His death was swiftly avenged by Danubre.
He may be the same character as Acantan the Agile.
Sources
Post-Vulgate Queste del Saint Graal | 1230-1240
Prose Tristan | 1230-1240