| Eltern | Geschwister | Kinder |
| Einion Owain | ||
| Hywel Cadell | Cadwallon Owain | |
| Owain Dha ap Hywel Dha | Llywarch Owain | |
| Eleanor Llywarch | Maredydd Hywel | Iestyn Owain |
| Rhodri Hywel | Maredudd Owain | |
| Gwenllian Howell | ||
| Rhain Hywel | ||
| Angharad Hywel | ||
| Dyfnwal Hywel | ||
| Edwin Hywel | ||
| Cynan Hywel | ||
| Einion Hywel | ||
| Partner | ||
| Angharad Llewelyn |