Nielsen Hayden genealogy
Llywarch ap Trahearn
- Aft 1124( = Descendancy chart to this point, = Expand, = Collapse)
- 1 Llywarch ap Trahearn [1] d. Aft 1124
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- 2 Gwladus ferch Llywarch [1.1]
- Owain Gwynedd, King of Gwynedd d. 1169
- 3 Iorwerth Drwyndwn ap Owain Gwynedd [1.1.1] d. Abt 1174
- Margred ferch Madog
- 4 Llywelyn Fawr ap Iorwerth [1.1.1.1] b. Abt 1173 d. 11 Apr 1240 [ =>]
- Margred ferch Madog
- 3 Gwenllian ferch Owain [1.1.2]
- Owain Cyfeiliog ap Gruffudd ap Maredudd ap Bleddyn ap Cynfyn b. Abt 1130 d. 1197
- 4 Gwenwynwyn [1.1.2.1] d. Abt 1216 [ =>]
- 4 Constance ferch Owain [1.1.2.2] [ =>]
- Owain Cyfeiliog ap Gruffudd ap Maredudd ap Bleddyn ap Cynfyn b. Abt 1130 d. 1197
- 3 Iorwerth Drwyndwn ap Owain Gwynedd [1.1.1] d. Abt 1174
- Owain Gwynedd, King of Gwynedd d. 1169
- 2 Gwladus ferch Llywarch [1.1]
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