NIGHTBRINGER | The Arthurian Encyclopedia

Gweir Dathar Wenîdawc

‘Servant of Birds’, ‘Servitor of Birds’

One of four brothers, all named Gweir, who were Arthur’s maternal uncles. Their father was Llwch Windy Hand.

Gweir had a daughter named Tangwen.

He is also found in Rhonabwy.


Source
Culhwch and Olwen | Late 11th century