A great-grandson of Cadwaladr (died 664), and the last king in Anglesey of the line of Cunedda. The blood of Cunedda was transmitted, on Hywel's death, to a new royal house through his niece, Ethyllt (grandmother of Rhodri the Great), daughter of his brother, Cynan (died 816), with whom he had for long contested Anglesey.
Published date: 1959
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