Margaret, of Powys
1. Margaret, of Powys (daughter of Prince of Powys Madoc Ap Maremudd and Susanna Mawr). 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]
Children:- Prince of Wales Llywelyn Fawr Ap Iowerth was born in 1173 in Dolwyddelan, Nantconwy, Wales, United Kingdom; died on 11 Apr 1240.
2. Prince of Powys Madoc Ap Maremudd (son of Prince of Powys Maremudd Ap Bleddyn and Hunydd Gwerny); died in 1160 in Winchester, Hampshire, England, United Kingdom. Madoc married Susanna Mawr. [Group Sheet] [Family Chart]
3. Susanna Mawr (daughter of Prince of Gwynedd Gruffydd Ap Cynan Mawr and Angharad, of Tegaingl). Children:
Generation: 3
4. Prince of Powys Maremudd Ap Bleddyn (son of Prince of Deheubath Bleddyn Ap Cynfyn and Haer Y blaidd rydd); died in 1132. Maremudd married Hunydd Gwerny. [Group Sheet] [Family Chart]
5. Hunydd Gwerny (daughter of Lord of Duffryn Efnydd Gwerny). Children:
- 2. Prince of Powys Madoc Ap Maremudd died in 1160 in Winchester, Hampshire, England, United Kingdom.
6. Prince of Gwynedd Gruffydd Ap Cynan Mawr was born in 1055 in , , , Ireland (son of Prince Of North Wales Cynan Ap Iago Mawr and Ranult, of Dublin); died in 1137 in Caravinshire, Wales, United Kingdom; was buried in Bangor Cathedral, Bangor, Caernarvonshire, Wales, United Kingdom. Gruffydd married Angharad, of Tegaingl in 1095. Angharad (daughter of Lord of Tegaingl Owain Ap Edwin) was born in 1080 in Tagaingl, Flintshire, Wales, United Kingdom; died in 1162. [Group Sheet] [Family Chart]
7. Angharad, of Tegaingl was born in 1080 in Tagaingl, Flintshire, Wales, United Kingdom (daughter of Lord of Tegaingl Owain Ap Edwin); died in 1162. Children:
- 3. Susanna Mawr
- Prince of Gwynedd Owain Gwynedd Ap Gruffydd Mawr was born in 1100 in , Anglesey, Wales, United Kingdom; died on 28 Nov 1170 in Caernarfon, Caernarvon, Wales, United Kingdom; was buried in Bangor Cathedral, Bangor, Caernarvonshire, Wales, United Kingdom.
Generation: 4
8. Prince of Deheubath Bleddyn Ap Cynfyn (son of King of Powys Cynfyn Ap Gwerystan and Queen of Powys Angharad Ferch ap Maredudd); died in 1075 in Powys Castle, Powys, , Wales, United Kingdom. Bleddyn married Haer Y blaidd rydd. [Group Sheet] [Family Chart]
9. Haer Y blaidd rydd (daughter of Lord of Gestyn-Efionydd Cilin Y blaidd rydd). Children:
- 4. Prince of Powys Maremudd Ap Bleddyn died in 1132.
10. Lord of Duffryn Efnydd Gwerny Children:
12. Prince Of North Wales Cynan Ap Iago Mawr was born in 1014 (son of Prince of Gwynedd Iago Ap Idwal Mawr and Avendreg Ferch Gwair, of Powys); died in 1063. Cynan married Ranult, of Dublin. Ranult (daughter of King of Dublin Olaf Sihtricson, II and Maelcorcre Ingen Dunlaing, of Leinster) was born in 1025 in Dublin, Dublin, Leinster, Ireland; and died. [Group Sheet] [Family Chart]
13. Ranult, of Dublin was born in 1025 in Dublin, Dublin, Leinster, Ireland (daughter of King of Dublin Olaf Sihtricson, II and Maelcorcre Ingen Dunlaing, of Leinster); and died. Children:
- 6. Prince of Gwynedd Gruffydd Ap Cynan Mawr was born in 1055 in , , , Ireland; died in 1137 in Caravinshire, Wales, United Kingdom; was buried in Bangor Cathedral, Bangor, Caernarvonshire, Wales, United Kingdom.
14. Lord of Tegaingl Owain Ap Edwin was born in 1044 in Llys Edwin, Llaneurguin, Flintshire, Wales, United Kingdom (son of Earl of Mercia Eadwin); died in 1105. Children:
- 7. Angharad, of Tegaingl was born in 1080 in Tagaingl, Flintshire, Wales, United Kingdom; died in 1162.