Idnerth ap Cadwgon

Idnerth ap was born in 1044 in Radnorshire, Wales.  Idnerth ap's father was Cadwgon ap Elystan , of Buillth and his mother was Angharad verch Llawr. He had a sister named Constance "Wen" verch.  He was the older of the two children. He had a half-brother and a half-sister, named Iorwerth ap and Joan verch.