[W, red sword].
The noble youth who becomes a guide for Peredur. After Peredur has overcome the 300 knights of the Countess of Achievement, he learns that she loves Etlym and so resigns her to him. Accompanied by Etlym, he goes forth to the Mound of Mourning, where he slays both the black serpent and 200 of the 300 knights guarding it. Later Peredur gives the magic stone found under the serpent to Etlym, who returns with it to his beloved.