Áed, Oedd
The father of Prydein from whom Britain took its name in Welsh tradition, adopted from Irish mythology. A Welsh Triad holds that Prydein, conquered and named Britain.
In Culhwch and Olwen, two of Arthur’s warriors – Gwitart and Odgar – are noted as Aedd’s sons, and Aedd himself is called the King of Ireland.
Sources
Culhwch and Olwen | Late 11th century
Triads of the Island of Britain | 11th century to 14th century | Welsh “Triads”