Meaning & History
The first element is Welsh gwen "fair, white, blessed"; the second element, gwledyr, is uncertain. In the tale of Culhwch and Olwen (which appears in the Mabinogion, a collection of tales from Welsh myth), Gwenwledyr was a lady who lived at Arthur's court, the daughter of Gwawrddur the Hunchback and sister of three of Arthur's warriors: Duach, Brathach and Nerthach.