NIGHTBRINGER | The Arthurian Encyclopedia

Hedor

Dor, Hector

Gawain’s paternal grandfather. His son was Lot, who succeeded him as the king of Orkney. He was descended from Joseph of Arimathea through Peter.

Hedor’s father was Argustes (possibly Arguth), and his wife was the daughter of the King of North Wales.


Source
Vulgate Estoire del Saint Graal | 1220-1235