Nielsen Hayden genealogy
Family: Madog ap Gruffudd Maelor ap Madog ap Maredudd ap Bleddyn / Gwladus ferch Ithel ap Rhys ab Ifor ap Hywel ap Morgan Fychan ap Morgan Hir (F3593)
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Male
Madog ap Gruffudd Maelor ap Madog ap Maredudd ap Bleddyn
Birth of Powys Fadog, Wales 
Death 1236 Burial Valle Crucis Abbey, Llantysilio, Denbighshire, Wales Marriage Father Gryffydd "Maelor" ap Madog, Prince of Northern Powys | F3390 Group Sheet Mother Angharad ferch Owain | F3390 Group Sheet
Female
Gwladus ferch Ithel ap Rhys ab Ifor ap Hywel ap Morgan Fychan ap Morgan Hir
Birth of Gwent, Wales Death Burial Father Ithel ap Rhys | F15934 Group Sheet Mother
Male
+ Gruffudd ap Madoc
Birth of Bromfield, Lower Powys, Wales Death 1269 Burial Valle Crucis Abbey, Llantysilio, Denbighshire, Wales Spouse Emma de Audley | F319 Marriage