Hywel Dda ap Cadell, King of the Britons
Abt 880 - 950 (~ 70 years)(Notes: You may have to scroll down or right to see chart.)
| Cynfyn ap Gwerstan | |
| B: | Abt 987 |
| Llywelyn ap Seisyll | |
| D: | 1023 |
| Maredudd ap Owain, King of Gwynedd | |
| D: | 999 |
| Unknown |
| Unknown |
| Einion ap Owain | |
| D: | 984 |
| Unknown |
| Owain ap Hywel | |
| D: | 987 |
| Unknown |
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| Hywel Dda ap Cadell, King of the Britons | |
| B: | Abt 880 |
| D: | 950 |