The Three Battle-Diademed Men of the Island of Britain:
And one was diademed above the Three of them:
that was
Bedwyr ap Bedrawc.
Bedwyr may be a later interpolation; however, he is often paired with
Cai, and the two of them with
Gwalchmai ap Gwyar.
Drystan is Tristan, and Hueil is Hoel of Brittany.