| Family |
Iorwerth ab Owain, b. 1130, Aberffraw Castle, Aberffraw, Anglesey, Caernarvonshire, Wales  d. 1174, Llanwnog, Powys, Wales (Age 44 years) |
| Children |
| | 1. Ievan Ap Owain Gwynedd d. 1195 |
| | 2. Gwerful Llwyd Ferch Iorwerth, b. Arwystli, Montgomeryshire, Wales d. Yes, date unknown |
| | 3. Rhirid Ap Iorwerth, b. Holywell, Flintshire, Wales |
| | 4. Llewelyn Fawr, b. Abt 1164, Aberffraw Castle, Angls d. 11 Apr 1240, Aberconway, Wales (Age 76 years) |
| | 5. Owain Goch, King Of Gwynedd, b. 1164, Wales, United Kingdom d. Yes, date unknown |
| | 6. Dafydd Ap Iorwerth, b. 1167, Wales, United Kingdom d. 1203 (Age 36 years) |
| | 7. Caradog Ap Thomas Ap Rhodri Ap Owain, Of Gwynedd, b. 1173, Dolwyddelan, Conwy, United Kingdom d. 11 Apr 1240, Aberconwy Abbey, Wales, United Kingdom (Age 67 years) |
| | 8. King of Gwynedd and Prince of Wales under King John I and King Henry III of England King Llewelyn Ap Iorwerth, Of Wales, b. 1173, Dowyddelan, Gwynedd, Caernarvonshire, Cymru Wales d. 11 Apr 1240, Conwy, Caernarfonshire, Wales (Age 67 years) |
| | 9. Catherine Verch Owain, b. 1175, Aberffraw, Isle of Anglesey, Wales, United Kingdom d. Yes, date unknown |
| | 10. Adda Ap Iorwerth Drwyndwn, b. 1175, Gwynedd, Caernarvonshire, Wales d. 11 Apr 1240, Arllechwedd Isaf, Caernarvonshire, Wales (Age 65 years) |
|
Abt 1142 - 1189 (47 years)
