430-500
| King of Dumnonia Tudvawl | |
| B: | 430 |
| D: | 500 |
432-Yes, date unknown
| Ffrwdwr Ap Gwrfawr, of Dumnonia | |
| B: | 432 |
| D: | Yes, date unknown |
390-Yes, date unknown
| Gwawl Ferch Coel, of Britain | |
| B: | 390 |
| D: | Yes, date unknown |
386-460
| King of Gwenydd Cunedda Wledig | |
| B: | 386 |
| Cardigan, Wales, United Kingdom | |
| D: | 460 |
| King of Northern Britain, St. Ceneu | |
| B: | 404 |
| D: | 470 |
375-Yes, date unknown
| Ystradwel Ferch Cadfan Gadeon, of Dumnonia | |
| B: | 375 |
| D: | Yes, date unknown |
360-430
| King of Britain Coel Hen | |
| B: | 360 |
| D: | 430 |
360-450
| King of Dumnonia Gadeon | |
| B: | 360 |
| D: | 450 |
|
345-420
| King of Dumnonia Cynan | |
| B: | 345 |
| D: | 420 |