Lord of Gestyn-Efionydd Cilin Y blaidd rydd
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| Prince of Powys Madoc Ap Maremudd | |
| D: | 1160 |
| Winchester, Hampshire, England, United Kingdom | |
| Prince of Powys Maremudd Ap Bleddyn | |
| D: | 1132 |
| Prince of Deheubath Bleddyn Ap Cynfyn | |
| D: | 1075 |
| Powys Castle, Powys, , Wales, United Kingdom | |