| Eltern | Geschwister | Kinder |
| Owain Dha ap Hywel Dha | ||
| Maredydd Hywel | ||
| Rhodri Hywel | ||
| Gwenllian Howell | ||
| Hywel Cadell | Rhain Hywel | Lluddica Tudur |
| Angharad Hywel | Gronwy Tudur | |
| Eleanor Llywarch | Dyfnwal Hywel | Dingad Tudur |
| Edwin Hywel | ||
| Cynan Hywel | ||
| Einion Hywel | ||
| Partner | ||
| Tudur Ynyr |