Nielsen Hayden genealogy
Margred ferch Madog

Generation: 1
Generation: 3
Generation: 4
1. Margred ferch Madog (daughter of Madog ap Maredudd, Prince of Powys Fadog and (Unknown wife or mistress of Madog ap Maredudd)). Notes:
Also called Marared of Powys.
Family/Spouse: Iorwerth Drwyndwn ap Owain Gwynedd. Iorwerth (son of Owain Gwynedd, King of Gwynedd and Gwladus ferch Llywarch) died about 1174. [Group Sheet] [Family Chart]
Children:- Llywelyn Fawr ap Iorwerth was born about 1173; died on 11 Apr 1240 in Aberconwy Abbey, Conwy, Wales; was buried in Aberconwy Abbey, Conwy, Wales.
2. Madog ap Maredudd, Prince of Powys Fadog (son of Maredudd ap Bleddyn ap Cynfyn and Hunydd ferch Einudd); died in 1160 in Winchester, Hampshire, England; was buried in St. Tysilio, Meifod, Powys, Wales. Madog married (Unknown wife or mistress of Madog ap Maredudd). [Group Sheet] [Family Chart]
3. (Unknown wife or mistress of Madog ap Maredudd) Children:
Generation: 3
4. Maredudd ap Bleddyn ap Cynfyn was born in in of Powys, Wales (son of Bleddyn ap Cynfyn, King of Gwynedd & Powys and Haer ferch Cillin); died in 1132. Maredudd married Hunydd ferch Einudd. [Group Sheet] [Family Chart]
5. Hunydd ferch Einudd (daughter of Einudd ap Morien ap Morgeneu ab Elystan ap Gwaithfoed). Children:
- 2. Madog ap Maredudd, Prince of Powys Fadog died in 1160 in Winchester, Hampshire, England; was buried in St. Tysilio, Meifod, Powys, Wales.
- Gruffudd ap Maredudd
Generation: 4
8. Bleddyn ap Cynfyn, King of Gwynedd & Powys (son of Cynfyn ap Gwerystan and Angharad ferch Maredudd); died in 1075. Bleddyn married Haer ferch Cillin. [Group Sheet] [Family Chart]
9. Haer ferch Cillin (daughter of Cillin y Blaidd Rhudd). Children:
- 4. Maredudd ap Bleddyn ap Cynfyn was born in in of Powys, Wales; died in 1132.
10. Einudd ap Morien ap Morgeneu ab Elystan ap Gwaithfoed was born about 1070 in of Dyffryn Clwdd, Denbighshire, Wales. Children:
- 5. Hunydd ferch Einudd
- Ithel ab Einudd ap Morien ap Morgeneu was born about 1100.