NIGHTBRINGER | The Arthurian Encyclopedia

Bratach

‘Crafty’
Brathach

Son of Gwawrddur Hunchback, brother of DuachNerthach, and the lady Gwenwledyr, and one of Arthur’s warriors.

According to Culhwch and Olwen, Brathach and his brothers were

sprung from the Highlands of Hell.


Source
Culhwch and Olwen | Late 11th century