Two entries with the name Agrippe.
King of Mabon Rock.
He was besieged by a king named Vadalon, but Agrippe’s daughter poisoned the water supply used by the besiegers, and they were forced to abandon the assault. In revenge, Vadalon imprisoned Agrippe’s daughter in iron bands, from which she was eventually released by Sir Bors.
King Agrippe’s Daughter | The Legend of King Arthur
Vulgate Lancelot | 1215-1230
Uncle of King Rions (Ryons), Arthur’s enemy.
He invaded the Waste Land, owned by Perceval’s mother, and killed fourteen of the lady’s sons. Aglovale, one of the surviving sons, raised an army of Arthur’s knights, encountered Agrippe’s fources, and finally killed Agrippe.
Le Livre d’Artus | Early 13th century