Nielsen Hayden genealogy
Family: Hwfa ap Cynddelw / (F23135)
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Male
Hwfa ap Cynddelw
Birth Abt 1100 of Llifon, Môn, Wales 
Death Burial Marriage Father Cynddelw ap Cwnws ap Cyllyn ap Maelog Dda | F23136 Group Sheet Mother Ceinfryd ferch Ednywain Bendew I | F23136 Group Sheet
Male
+ Iorwerth ap Hwfa ap Cynddelw
Birth of Treiorwerth, Bodedern, Wales Death Burial Spouse Gwenllian ferch Cynwrig ab Iorwerth ap Gwgon ab Idnerth ab Edryd | F23134 Marriage