| Eltern | Geschwister | Kinder |
| Gwenllian Owain | ||
| Maelgwn Owain | ||
| Owain Gruffydd | Rhirid Owain | |
| Gwenllian Owain | Angharad Hwfa | |
| Gwladus Llywarch | Madog Owain | |
| Dafydd Owain | ||
| Cynan Owain | ||
| Iorwerth Owain | ||
| Cadell Owain | ||
| Einion Owain | ||
| Cynwrig Owain | ||
| Cynwrig Owain | ||
| Angharad Owain Gwynnedh | ||
| Partner | ||
| Hwfa Cynwrig |