NIGHTBRINGER | The Arthurian Encyclopedia

Thailais

Tahalais, Talais, Taulas, Thailas

Uther Pendragon’s grandfather (and Arthur’s great-grandfather), as given by Prose Lancelot.

He ruled the city of Clarence near South Wales, and “Clarence” was thus Arthur’s battle cry.


Sources
Lancelot do Lac | 1215-1220
Vulgate Lancelot | 1215-1230