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Male Gwilym ap Aron , of Cilsant Click to view Gwilym ap Aron , of Cilsant in the family tree

Gwilym ap was born about 1198 in Cilsant Castle, St Clears, Dyfed, Carmarthenshire, Wales.  Gwilym ap's father was Aron ap Rhys , of Cilsant, Sir Knight and his mother was Gwenllian verch Ednyfed , "Fychan".  His paternal grandparents were Rhys ap Bledri , Lord Justice of South Wales and Angharad verch Llewelyn; his maternal grandparents were Ednyfed "Fychan" ap Cynwrig and Gwenllian verch Rhys.  He was an only child.


Gwilym ap's family with Jonet verch Meurig

They had a son named Madog ap.

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