In "King Arthur and King Cornwall", the Green Knight again features as Bredbeddle, and is depicted as one of Arthur's knights. He offers to help Arthur fight a mysterious sprite (controlled by the magician, King Cornwall) which has entered his chamber. When physical attacks fail, Bredbeddle uses a sacred text to subdue it. The Green Knight eventually gains so much control over the sprite through this text that he convinces it to take a sword and strike off its master's head.