Nielsen Hayden genealogy
Family: Gruffydd ap Cynan ab Iago, King of Gwynedd / Angharad ferch Owain (F5548)
m. Abt 1095-
Male
Gruffydd ap Cynan ab Iago, King of Gwynedd
Birth Abt 1055 Death 1137 Burial Marriage Abt 1095 [1] Other Spouse (Unknown wife or mistress of Gruffudd ap Cynan) | F17608 Marriage Father Cynan ab Iago | F3447 Group Sheet Mother Radnailt of Dublin | F3447 Group Sheet
Female
Angharad ferch Owain
Birth Death 1162 Burial Father Owain ab Edwin | F913 Group Sheet Mother (Unknown daughter of Ednywain Bendew) | F913 Group Sheet
Male
+ Owain Gwynedd, King of Gwynedd
Birth Death 1169 Burial Bangor Cathedral, Bangor, Gwynedd, Wales 
Spouse Gwladus ferch Llywarch | F1660 Marriage Spouse Cristin ferch Gronwy ab Owain ab Edwin | F15927 Marriage Spouse (Unknown mistress of Owain Gwynedd) | F17586 Marriage
Female
+ Susanna ferch Gruffydd ap Cynan
Birth Death Burial Spouse Madog ap Maredudd, Prince of Powys Fadog | F4086 Marriage
Male
+ Cadwaladr ap Gruffudd ap Cynan, King in Wales
Birth Death 1172 Burial Bangor Cathedral, Bangor, Gwynedd, Wales Spouse Aliz de Clara | F17642 Marriage Bef 1151
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Sources - [S903] The Dictionary of Welsh Biography. National Library of Wales, 2007 and ongoing.
- [S903] The Dictionary of Welsh Biography. National Library of Wales, 2007 and ongoing.