Gaheris

Gaheris /ɡəˈhɛrɨs/ is a character in the Arthurian legend, a nephew of King Arthur and a Knight of the Round Table. As son of Arthur's sister or half-sister Morgause and her husband Lot, King of Orkney and Lothian, he is a brother of Gawain, Agravaine and Gareth and half-brother of Mordred.

Read more about Gaheris:  Role in Arthurian Tradition, Analysis