
| Llywelyn ab Iorwoerth | |
| B: | 1173 |
| Aberffraw Castle, Anglesey, Wales | |
| D: | 11 Apr 1240 |
| Conwy, Caernarfonshire, Wales, United Kingdom | |
| Joan, of England | |
| B: | 1183 |
| London, Middlesex, England | |
| D: | 2 Feb 1237 |
| Aber, Gwynedd, Wales, United Kingdom | |
| Marared verch Madog | |
| B: | 1129 |
| Montgomeryshire, Powys, Wales, United Kingdom | |
| D: | 1198 |
| Gwynedd, Wales, United Kingdom | |
| Iorwerth Drwyndwn ap Owain Gwynedd | |
| B: | 1145 |
| Aberffraw Castle, Anglesey, Wales | |
| D: | 28 Nov 1170 |
| Pennant, Cardiganshire, Wales | |
| Llewelyn Fawr Wales ApIorwerth | |
| B: | 1130 |
| Wales, United Kingdom | |
| D: | 1184 |
| Caernarfonshire, Wales, United Kingdom | |
| Owain " The Red" Goch, King of Gwynedd | |
| B: | 1164 |
| Wales, United Kingdom | |
| D: | DECEASED |
| Dafydd Ap Iorwerth | |
| B: | 1167 |
| Wales, United Kingdom | |
| D: | 1203 |
| Llywelyn ab Iorwoerth | |
| B: | 1173 |
| Aberffraw Castle, Anglesey, Wales | |
| D: | 11 Apr 1240 |
| Conwy, Caernarfonshire, Wales, United Kingdom | |
| Joan, of England | |
| B: | 1183 |
| London, Middlesex, England | |
| D: | 2 Feb 1237 |
| Aber, Gwynedd, Wales, United Kingdom | |
| Adda Ap Iorwerth Drwyndwn | |
| B: | 1175 |
| Gwynedd, Caernarvonshire, , Wales | |
| D: | 11 Apr 1240 |
| Arllechwedd Isaf, Caernarvonshire, , Wales | |
| Catherine Verch Owain | |
| B: | 1175 |
| Aberffraw, Isle of Anglesey, Wales, United Kingdom | |
| D: | DECEASED |
| Catherine Verth Gwynedd | |
| B: | 1175 |
| D: | DECEASED |
| Vychan ap Liewelyn | |
| B: | 1238 |
| Presteigne, Radnorshire, Wales | |
| D: | Wales |
| Margaret ApIthel | |
| B: | 1390 |
| Wales, United Kingdom | |
| D: | DECEASED |
| Ievan ap Owain Gwynedd | |
| D: | 1195 |
| Davydd Iorwerth | |
| D: | 1203 |
| Dafydd ap Madog Llwyd | |
| B: | Llowarch Hwlbwrch, Wales |
| D: | 1399 |
| Griffith ( Gruffydd) ap Iorwerth | |
| D: | DECEASED |
| Gwerful Llwyd ferch Iorwerth | |
| B: | Montgomeryshire, Wales, United Kingdom |
| D: | DECEASED |
| Maelgwin Iorwerth | |
| D: | DECEASED |
| Margaret Iorwerth | |
| D: | DECEASED |
| Iorwerth Drwyndwn 'The Broken Nose' 'King of Gwynedd | |
| B: | 1145 |
| Aberffraw Castle, Anglesey, Wales | |
| M: | 1163 |
| Aberffraw Castle, Anglesey, Wales | |
| D: | 1184 |
| Pennant, Cardiganshire, Wales, United Kingdom | |
| Dafydd ap Madog | |
| B: | Penrhosllugwy, Isle of Anglesey, Wales, United Kingdom |
| D: | DECEASED |
| Madog ap Maredudd | |
| B: | Penrhosllugwy, Isle of Anglesey, Wales, United Kingdom |
| D: | DECEASED |
| Mrs. Susanna ferch Gruffydd ap Cynan | |
| B: | Abt 1095 |
| Ceri, Montgomeryshire, Wales | |
| D: | 1165 |
|
| Maredudd ap Ednyfed | |
| B: | Penrhosllugwy, Isle of Anglesey, Wales, United Kingdom |
| D: | DECEASED |