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Male Iorwerth Gam ap Owain Click to view Iorwerth Gam ap Owain in the family tree

Iorwerth Gam was born in 1215 in Llangollen, Denbighshire, , Wales.  Iorwerth Gam's father was Owain ap Bleddyn and his mother was Efa ferch Madog.  His maternal grandparents were Madog ap Gwenwynwyn Prince of Powys and unknown.  He was an only child.  He died at the age of 21 in 1236.

Source/Citation
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=jackson_anc&id=I6000000007151720276&style=TABLE

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