Nielsen Hayden genealogy
Descendants of Madog ap Cadwgon ap Madog ap Cadwgon
![Male](img/tng_male.gif)
Mother: Gwenllian ferch Owain Gwynedd
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Madog ap Cadwgon ap Madog ap Cadwgon (Abt 1170 of Nannau, Meirionnydd, Wales - ??)
            + Maredudd ab Owain ap Gruffudd ab Yr Arglwydd Rhys
( - Mar 1265 Llanbardarn Fawr, Ceredigion, Wales)
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