| Eltern | Geschwister | Kinder |
| Gwenllian Owain | ||
| Maelgwn Owain | ||
| Rhirid Owain | ||
| Gwenllian Owain | ||
| Madog Owain | ||
| Dafydd Owain | ||
| Owain Gruffydd | Cynan Owain | Owain Goch |
| Iorwerth Owain | Llywelyn Wales | |
| Gwladus Llywarch | Cadell Owain | catherine iorwerth |
| Einion Owain | ||
| Cynwrig Owain | ||
| Cynwrig Owain | ||
| Angharad Owain Gwynnedh | ||
| Partner | ||
| Margred Madog |