| 1. | Prince of Wales Rhodri Mawr was born in 820 in Caer Seiont, Caernarfon, Caernarvon, Wales, United Kingdom; died in 878 in , Anglesey, Wales, United Kingdom. Family/Spouse: Angharad Sitsllt. [Group Sheet] [Family Chart]
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| 2. | King of South Wales Cadell Ap Rhodri Mawr Family/Spouse: Unknown. [Group Sheet] [Family Chart]
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| 3. | Prince of Gwynedd Anarawd Ap Rhodri Mawr Family/Spouse: Unknown. [Group Sheet] [Family Chart]
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| 4. | King of Powys Merfyn Ap Rhodri Mawr Family/Spouse: Unknown. [Group Sheet] [Family Chart]
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| 5. | Prince of Deheubarth Hywel Dha Ap Cadell Mawr Family/Spouse: Elen, of Dyfed. [Group Sheet] [Family Chart]
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| 6. | Idwal Foel Ap Anarawd Mawr Idwal married Avandreg Mawr in 915. Avandreg (daughter of King of Powys Merfyn Ap Rhodri Mawr) was born in 888; and died. [Group Sheet] [Family Chart]
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| 7. | Llewelyn Ap Maervyn Mawr Family/Spouse: Unknown. [Group Sheet] [Family Chart]
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| 8. | Avandreg Mawr Avandreg married Idwal Foel Ap Anarawd Mawr in 915. Idwal (son of Prince of Gwynedd Anarawd Ap Rhodri Mawr) was born in 883 in Aberffraw Castle, Aberffraw, Anglesey, Wales, United Kingdom; died in 942. [Group Sheet] [Family Chart]
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| 9. | King of South Wales Owain Ap Hywel Dha Mawr Family/Spouse: Queen of Powys Anghard Ferch ap Llewelyn. [Group Sheet] [Family Chart]
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| 10. | Meurig Ap Idwal Foel Mawr Family/Spouse: Unknown. [Group Sheet] [Family Chart]
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| 11. | Queen of Powys Anghard Ferch ap Llewelyn Family/Spouse: King of South Wales Owain Ap Hywel Dha Mawr. Owain (son of Prince of Deheubarth Hywel Dha Ap Cadell Mawr and Elen, of Dyfed) died in 988. [Group Sheet] [Family Chart]
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