Youngat son of King Lot of Orkney and Margawse

He was allowed to go to King Arthur's Court on condition he hid his name and took a rawly position. Gareth worked in the kitchen and was roughly treated by Sir Kay, but was befriended and knighted by Sir Launcelot. Sir Gareth was given the quest of Linnet. He fell in love with Lionesse, their love was thwarted by her sister, until Arthur gave him to her in marriage.

Sir Gareth died at the hand of Sir Launcelot, who did not recognise him in the melee surrounding Guenevere's rescue.