With Hywel's death, all male descendants of Maelgwn Gwynedd have expired. Merfyn the Freckled succeeds through his mother Esyllt, eldest daughter of Cynan Dindaethwy and niece of Hywel ap Rhodri Molwynog.
House of Manaw
Merfyn Frych (Merfyn the Freckled) ap Gwriad (825–844).[18]
Rhodri Mawr (Rhodri the Great) ap Merfyn (844–878).[19]
House of Aberffraw
The warfare among the sons of Rhodri meant that the descendants of Anarawd became considered a separate house – called the House of Aberffraw from their principal seat – from the junior branches in Deheubarth and elsewhere:
Anarawd ap Rhodri (878–916) (establishes the Aberffraw dynasty, the senior branch of descendants from Rhodri Mawr).[20]
Idwal Foel ab Anarawd (Idwal the Bald) (916–942).[21]
Hywel Dda ap Cadell (Howell the Good) (942–950) (Dinefwr dynasty, descended from the second son of Rhodri Mawr who ruled in Deheubarth, usurps Gwynedd from the Aberffraw line).[22]
Iago ab Idwal (950–979) (returns to the Aberffraw branch).[23]
Hywel ab Owain Gwynedd r. 1170; killed by his younger brother Dafydd ab Owain in a conspiracy hatched by his stepmother Cristen, dowager princess of Gwynedd, and her sons Dafydd and Rhodri ab Owain.[36]
Dafydd I the Usurper (1170–1195), displaced elder brother Hywel ap Owain Gwynedd, but was himself displaced from Upper Gwynedd c. 1173 ruling only lower Gwynedd until displaced by Llywelyn Fawr in 1198. England recognized Dafydd as Prince of Gwynedd, though Welsh jurists did not.[37]
Rhodri ab Owain Gwynedd (1175–1194, 1194–1195), Ruling upper Gwynedd and Ynys Mon until 1194 and then Ynys Mon solely from 1194–1195 until he was ousted by the sons of his brother Cynan.[38]
Maelgwn ab Owain Gwynedd (1170–1173), ruling Ynys Mon and supporter of his elder brother Hywel ap Owain's claim as Prince. After Hywel's death, Maelgwn was able to retain Ynys Mon from Dafydd the Usurper.[39]
