Gyllymer

Brother of Gautere and Raynold.

Believing him to be Kay, Gyllymer and his two brothers attacked Lancelot, who was dressed in Kay’s armor, and got the surprise of their lives. Sent by Lancelot to Arthur’s court, he later became a Knight of the Round Table.

He was killed fighting Lancelot’s men when Lancelot rescued Guenevere from the stake.