Eiludd Powys was an early 7th-century King of Powys.
He is likely to have been the son or younger brother of Selyf "Sarffgadau" ap Cynan Garwyn. It is not known which he was as there are two accounts: one in Jesus College, Oxford MS 20 that makes him the son of Selyf and brother of Manwgan, whereas the one in British Library Harley MS 3859 makes him the brother of Selyf Sarffgadau. Either is plausible, as it is not unheard of that a brother succeeds in absence of a mature heir (see Rhuddfedel Frych), or that the eldest is passed over in the succession (see Gruffudd ap Llywelyn ab Iorwerth and Dafydd ap Llywelyn). There is an interesting reference to the descendants of Selyf, serpents of battle, by the 12th-century Powysian court poet Cynddelw Brydydd Mawr, who, after the dynasty's fall, went to work for the kingdom of Gwynedd and then that of Powys Wenwynwyn.
Dunoding Dunod ap Cunedda Eifion ap Dunod Dingad ab Eifion Meurig ad Dingad Eifion ap Meurig Issac ap Eifion ap Meurig Pobien Hen ap Isaac Pobddelw ap Pobien Hen Eifion ap Pobddelw Brochwel ap Eifion Eigion ap Brochwel ab Eifion Ieuanawl ab Eigion Caradog ap Ieuanawl Bleiddud ap Caradog Cuhelyn ap Bleiddud
Kingdom of Ceredigion Ceredig ap Cunedda Usai ap Ceredig Serwyl ab Usai Boddw ap Serwyl Arthfoddw ap Boddw Athrwys ab Arthfoddw Clydog ab Athrwys
Seisyllwg Seisyll ap Clydog Arthen ap Seisyll Dyfnwallon ab Arthen Meurig ap Dyfnwallon Gwgon ap Meurig
Dyfed Tewdos (Tewdwr) Maredudd ap Tewdws Rhain ap Maredudd Owain ap Maredudd Triffyn ap Rhain Bleddri (Bledrig) Hyfaidd ap Bleddri Llywarch ap Hyfaidd Rhodri ap HyfaiddHywel Dda
Brycheiniog
745–825
Glywysing Rhys ab Ithel Rhodri ab Ithel Meurig ab Ithel Rhys ap Arthfael Hywel ap Rhys Owain ap Hywel
Gwent Brochfael ap Meurig Ffernfael ap Meurig Brochwel ap Meurig Arthfael ap Hywel Ithel ab Athrwys ap Ffernfael
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