| 1. Nest ferch Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown ▻ Einion ap Gollwyn, arglwydd of Senghennydd | | 2. Gwenllian ferch Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown ▻ Drymbenog ap Maenyrch, Brenin of Brycheniog | | 3. Catrin ferch Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown ▻ Rhys ap Tewdwr "Mawr", Brenin of Deheubarth | | 4. Rhiwallon ab Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown | | 5. Cynwrig ab Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown | | 6. Iorwerth ab Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown | | 7. Gruffudd ab Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown ▻ | | 8. Cadwgon ab Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown ▻ | | 9. Richard ab Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown ▻ | | 10. Gearnad ab Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown ▻ | | 11. Ieuan ab Iestyn, b. Abt 1070, of, , Glamorganshire, Wales d. Yes, date unknown ▻ | | 12. Caradog ab Iestyn, arglwydd of Afan, b. Abt 1070, of, Afan cantref, Glamorganshire, Wales d. Yes, date unknown ▻ Gwladus ferch Gruffudd | + | 13. Madog ab Iestyn, arglwydd of Rhuthin, b. Abt 1100, of, Rhuthin, Eglwys Fair y Mynydd, Glamorganshire, Wales d. Yes, date unknown ▻ Jonet ferch Ynyr "Fychan" | | 14. Rhys ab Iestyn, arglwydd of Resolfen, b. Abt 1100, of, Resolfen, Glamorganshire, Wales d. Yes, date unknown ▻ | |
Patriarch & Matriarch |
Iestyn ap Gwrgan, arglwydd of Morgannwg, b. Abt 1030, of,, Glamorganshire, Wales d. Monastery of Llangenys,, Monmouthshire, Wales (Father) Constance "Wen" ferch Cadwgon, b. Abt 1030, of,, Radnorshire, Wales d. Yes, date unknown (Mother) |