Individual Details
Merfyn ap Rhodri Mawr, King of Powys
( - )
Families
| Child | Living |
| Father | Rhodri Mawr "The Great," King of Gwynedd (820 - 878) |
| Mother | Angharad ferch Meurig ( - ) |
| Sibling | Cadell ap Rhodri, King of Seisyllwg ( - 909) |
( - )
| Child | Living |
| Father | Rhodri Mawr "The Great," King of Gwynedd (820 - 878) |
| Mother | Angharad ferch Meurig ( - ) |
| Sibling | Cadell ap Rhodri, King of Seisyllwg ( - 909) |