Iwerydd verch Cynfyn

Iwerydd verch was born about 1024 in Powys, Wales.  Iwerydd verch's father was Cynfyn ap Gwerystan and her mother was Angharad verch Maredudd.  Her maternal grandparents were Maredudd ap Owain and Miss verch Llandilo. She had two brothers named Bleddyn "Sais" ap and Rhiwallon ap.  She was the oldest of the three children. She had a half-brother named Gruffudd ap.