Nielsen Hayden genealogy
Descendants of Gwenllian ferch Madog
![Female](img/tng_female.gif)
Father: Madog ap Maredudd, Prince of Powys Fadog
( - 1160 Winchester, Hampshire, England)
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Gwenllian ferch Madog ( - 1160)
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24 Apr 1197 bur.St Davids Cathedral, St. Davids, Pembrokeshire, Wales)
   │    ├─ Gronwy ab Ednyfed Fychan ap Cynwrig ab Iorwerth
(of Trecasteil, Anglesey, Wales - 1268)
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   │    │    └─ Tudur ap Gronwy ab Ednyfed Fychan ap Cynwrig
( - 1311) =>
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
   │    │     + Angharad ferch Ithel Fychan ab Ithel Gam ap Hen Ithel Gam ap Maredudd ab Uchdrud ab Edwin
   │    │     (of Tegeingl, Wales - ??)
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
   │    │     (of Tegeingl, Wales - ??)
   │    │
Tegwared y Baiswen ap Llywelyn ab Iorwerth Drwyndwn ab Owain Gwybnedd
(Abt 1200 - ??)
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   │    │    └─ Angharad ferch Tegwared y Baiswen ap Llywelyn ab Iorwerth Drwyndwn ab Owain Gwybnedd
=>
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
   │    │     + Gruffudd ap Hywel ap Maredudd ab Einion
(Abt 1270 - ??)
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
   │         + Hywel ap Maredudd ab Einion ap Caradog
(Abt 1230 - ??)
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
   └─ Gruffudd ab Yr Arglwydd Rhys
( - 25 Jul 1201 Strata Florida Abbey, Ceredigion, Wales)
![Locate Person in Chart, Link to Ancestor Chart & Descendant Chart](img/rrtextplus_locate.gif)
       └─ Owain ap Gruffudd ab Yr Arglwydd Rhys
( - 18 Jan 1236 Strata Florida Abbey, Ceredigion, Wales)
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           └─ Maredudd ab Owain ap Gruffudd ab Yr Arglwydd Rhys
( - Mar 1265 Llanbardarn Fawr, Ceredigion,
            Wales) =>
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            Wales) =>