Nielsen Hayden genealogy
Descendants of Rhirid ap Pasgen ap Trahaearn ap Tangwel
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Father: Pasgen ap Trahaearn ap Tangwel
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Rhirid ap Pasgen ap Trahaearn ap Tangwel (Abt 1100 - ??)
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Iorwerth ap Gwgon ab Idnerth ab Edryd ab Inethan ab Iasedd ap Carwed ap Marchudd ap Cynan
(Abt 1100 of Uwch
    Dulas, Denbighshire, Wales - ??)
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    Dulas, Denbighshire, Wales - ??)
       └─ Cynwrig ab Iorwerth ap Gwgon ab Idnerth ab Edryd ab Inethan ab Iasedd ap Carwed ap Marchudd ap Cynan
        (Abt 1130 - ??)
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        (Abt 1130 - ??)
       
Angharad ferch Hwfa ap Cynwrig ap Rhiwallon ap Dingad ap Tudur Trefor
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           ├─ Ednyfed Fychan ap Cynwrig ab Iorwerth ap Gwgon
( - 1246) =>
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           └─ Gwenllian ferch Cynwrig ab Iorwerth ap Gwgon ab Idnerth ab Edryd
=>
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            + Iorwerth ap Hwfa ap Cynddelw
(of Treiorwerth, Bodedern, Wales - ??)
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