Bedivere

Sir Bedivere was a Knight of Camelot who was killed by the Questing Beast in Le Morte d'Arthur. He is not named until right before he is killed offscreen.

In the legends
Sir Bedivere is a Knight of the Round Table. Most notably, he throws Excalibur back to the Lady of the Lake after King Arthur is mortally wounded in his final battle against Mordred.