Gaheris

Gaheris /ɡəˈhɛrɪs/ (Old French: Gaheriet, Gaheriés, Guerrehes, etc.) is a Knight of the Round Table in the chivalric romance tradition of Arthurian legend. A nephew of King Arthur, Gaheris is the third son of Arthur's sister or half-sister Morgause and her husband Lot, King of Orkney and Lothian. He is the younger brother of Gawain and Agravain, the older brother of Gareth, and half-brother of Mordred.