Iestyn Ap Gwrgan
Iestyn Ap was born about 1040 in Glamorgan,Wales.  He died after 1093 in Monastery,Llangenyw,Denbighshire,Wales.

 Constance 'Wen' Verch Cadwgon

 Catrin (Gwladys) Verch Iestyn
Catrin (Gwladys) Verch was born in 1010.  She died about 1050.

 Caradog Ap Iestyn
Caradog Ap was born about 1076 in Wales.

 Madog Ap Iestyn
Madog Ap was born about 1093.