Nielsen Hayden genealogy
Descendants of Nest ferch Madog
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Father: Madog ap Cadwgon ap Madog ap Cadwgon
(Abt 1170 of Nannau, Meirionnydd, Wales - ??)
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Nest ferch Madog
       
Maredudd ab Owain ap Gruffudd ab Yr Arglwydd Rhys
( - Mar 1265 Llanbardarn Fawr, Ceredigion, Wales)
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           └─ Owain ap Maredudd ab Owain ap Gruffudd
(of Iscoed, Ceredigion, Wales -
            15 Aug 1275 bur.Strata Florida Abbey, Ceredigion, Wales) =>
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            15 Aug 1275 bur.Strata Florida Abbey, Ceredigion, Wales) =>
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