Glythvyr Ledewig, Glythwyr
Father of Arthur’s warrior Garanhon.
Glythfyr owned two special hounds. Arthur sought the hounds while helping the warrior Culhwch complete his forty tasks. Curiously, however, the chief giant Ysbaddaden, who assigned Culhwch’s tasks, did not ask for these dogs.
See also
Giant | The Legend of King Arthur
Sources
Culhwch and Olwen | Late 11th century
Peredur | 13th century