| 1. | Prince of Deheubath Bleddyn Ap Cynfyn died in 1075 in Powys Castle, Powys, , Wales, United Kingdom. Family/Spouse: Haer Y blaidd rydd. [Group Sheet] [Family Chart]
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| 2. | Prince of Powys Maremudd Ap Bleddyn Family/Spouse: Hunydd Gwerny. [Group Sheet] [Family Chart]
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| 3. | Prince of Powys Madoc Ap Maremudd Family/Spouse: Susanna Mawr. [Group Sheet] [Family Chart]
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| 4. | Margaret, of Powys Family/Spouse: Iowerth Drwyndwn Ap Owain Mawr. Iowerth (son of Prince of Gwynedd Owain Gwynedd Ap Gruffydd Mawr and Gwladys Ap Llywarch, of Pembroke) was born in 1125 in Aberffraw Castle, Aberffraw, Anglesey, Wales, United Kingdom; died in 1174 in Pennant Melangell, , Wales, United Kingdom. [Group Sheet] [Family Chart]
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