500-550
| King of Dumnonia Erbin | |
| B: | 500 |
| D: | 550 |
460-546
| High King of Britain Constantine | |
| B: | 460 |
| D: | 546 |
430-500
| King of Dumnonia Tudvawl | |
| B: | 430 |
| D: | 500 |
410-Yes, date unknown
| Amlawdd Wledig Ap Cynwal, of Dumnonia | |
| B: | 410 |
| D: | Yes, date unknown |
414-Yes, date unknown
| Gwen Ferch Cunedda, of Gwenydd | |
| B: | 414 |
| D: | Yes, date unknown |
390-Yes, date unknown
| Cynwal Ap Ffrwdwr, of Dumnonia | |
| B: | 390 |
| D: | Yes, date unknown |
432-Yes, date unknown
| Ffrwdwr Ap Gwrfawr, of Dumnonia | |
| B: | 432 |
| D: | Yes, date unknown |
|