Nielsen Hayden genealogy
Family: Gronwy ap Tydyr Hên ap Gronwy / Gwerfyl ferch Madog (F12982)
-
Male
Gronwy ap Tydyr Hên ap Gronwy
Birth of Penmynydd, Anglesey, Wales 
Death 1331 Burial Bangor, Gwynedd, Wales Marriage Father Tudur ap Gronwy ab Ednyfed Fychan ap Cynwrig | F15908 Group Sheet Mother Angharad ferch Ithel Fychan ab Ithel Gam ap Hen Ithel Gam ap Maredudd ab Uchdrud ab Edwin | F15908 Group Sheet
Female
Gwerfyl ferch Madog
Birth of Hendwr in Edeirnion, Merionethshire, Wales Death Aft 1293 Burial Father Madog ab Iorwerth ap Madog ap Gruffudd | F17621 Group Sheet Mother Efa ferch Llywelyn ap Gruffudd | F17621 Group Sheet
Male
+ Tudur ap Gronwy
Birth Death 1367 Trecasteil, Anglesey, Wales Burial Spouse Margred ferch Thomas | F12980 Marriage