974-1039
| Prince of Gwynedd Iago Ap Idwal Mawr | |
| B: | 974 |
| Aberffraw Castle, Aberffraw, Anglesey, Wales, United Kingdom | |
| D: | 1039 |
| Aberffraw Castle, Aberffraw, Anglesey, Wales, United Kingdom | |
984-Yes, date unknown
| Avendreg Ferch Gwair, of Powys | |
| B: | 984 |
| Aberffraw Castle, Aberffraw, Anglesey, Wales, United Kingdom | |
| D: | Yes, date unknown |
| King of North Wales Idwel Fychan Ap Meurig Mawr | |
| B: | 945 |
| D: | 996 |
| Pennmynydd, Dindaethmy, , Anglesey, Wales, United Kingdom | |
917-986
| Meurig Ap Idwal Foel Mawr | |
| B: | 917 |
| D: | 986 |
|
883-942
| Idwal Foel Ap Anarawd Mawr | |
| B: | 883 |
| Aberffraw Castle, Aberffraw, Anglesey, Wales, United Kingdom | |
| D: | 942 |
888-Yes, date unknown
| Avandreg Mawr | |
| B: | 888 |
| M: | 915 |
| D: | Yes, date unknown |