Note 46 — Chapter IX · Place-name Stories
Reading edition
2. Twrch Trwyth makes for Cwm Kerwyn in the Preselly Mountains, and turns to bay, killing the following men, who are called Arthur’s four rhyswyr46 or champions—Gwarthegyđ son of Caw, Tarawg of Aỻt Clwyd, Rheiđwn son of Eli Atver, and Iscovan Hael.