HYWEL ap IEUAF (d. 985), king of Gwynedd;
son of Ieuaf ab Idwal Foel (q.v.). In 979 he avenged his father by imprisoning his uncle, Iago ab Idwal (q.v.) and assuming the kingship of Gwynedd himself. He was succeeded by his brother, Cadwallon (d. 986), who also had no direct male heir. The line was carried on by the heirs of an uncle, Meurig ab Idwal Foel (q.v.).
Author:
Professor Thomas Jones Pierce, M.A., F.S.A., (1905-1964), Aberystwyth
