Nielsen Hayden genealogy
Family: Maredudd ab Owain ap Gruffudd ab Yr Arglwydd Rhys / (Unknown daughter of Thomas ap Rhodri) (F15924)
-
Father | Male
Maredudd ab Owain ap Gruffudd ab Yr Arglwydd Rhys
Born Died Mar 1265 Llanbardarn Fawr, Ceredigion, Wales 
Buried Strata Florida Abbey, Ceredigion, Wales Married Father Owain ap Gruffudd ab Yr Arglwydd Rhys | F15928 Group Sheet Mother (Unknown daughter of Gwion Sais) | F15928 Group Sheet
Mother | Female
(Unknown daughter of Thomas ap Rhodri)
Born Died Buried Father Thomas ap Rhodri ab Owain Gwynned | F15925 Group Sheet Mother Margred ferch Einion ap Seisyll | F15925 Group Sheet
Child 1 | Male
+ Owain ap Maredudd ab Owain ap Gruffudd
Born of Iscoed, Ceredigion, Wales Died 15 Aug 1275 Buried Strata Florida Abbey, Ceredigion, Wales