Nielsen Hayden genealogy
(Unknown mistress of Owain Gwynedd)

( = Descendancy chart to this point,
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- 1 (Unknown mistress of Owain Gwynedd) [1]
Owain Gwynedd, King of Gwynedd d. 1169
- 2 Gwenllian ferch Owain Gwynedd [1.1]
Hwfa ap Cynwrig ap Rhiwallon ap Dingad ap Tudur Trefor b. Abt 1130
- 3 Angharad ferch Hwfa ap Cynwrig ap Rhiwallon ap Dingad ap Tudur Trefor [1.1.1]
Cynwrig ab Iorwerth ap Gwgon ab Idnerth ab Edryd ab Inethan ab Iasedd ap Carwed ap Marchudd ap Cynan b. Abt 1130
- 4 Ednyfed Fychan ap Cynwrig ab Iorwerth ap Gwgon [1.1.1.1]
d. 1246
Gwenllian ferch Yr Arglwydd Rhys d. 1236
- 5 Gronwy ab Ednyfed Fychan ap Cynwrig ab Iorwerth [1.1.1.1.1]
d. 1268
Morfudd ferch Meurig
- 6 Tudur ap Gronwy ab Ednyfed Fychan ap Cynwrig [1.1.1.1.1.1]
d. 1311
Angharad ferch Ithel Fychan ab Ithel Gam ap Hen Ithel Gam ap Maredudd ab Uchdrud ab Edwin
- 7 Gronw ap Tydyr HĂȘn ap Gronw [1.1.1.1.1.1.1]
d. 1331
Gwerfyl ferch Madog d. Aft 1293
- 8 Tudur ap Gronwy [1.1.1.1.1.1.1.1]
d. 1367 [ =>]
- 8 Tudur ap Gronwy [1.1.1.1.1.1.1.1]
- 7 Gronw ap Tydyr HĂȘn ap Gronw [1.1.1.1.1.1.1]
- 6 Tudur ap Gronwy ab Ednyfed Fychan ap Cynwrig [1.1.1.1.1.1]
- 5 Gwenllian ferch Ednyfed Fychan [1.1.1.1.2]
Tegwared y Baiswen ap Llywelyn ab Iorwerth Drwyndwn ab Owain Gwybnedd b. Abt 1200
- 6 Angharad ferch Tegwared y Baiswen ap Llywelyn ab Iorwerth Drwyndwn ab Owain Gwybnedd [1.1.1.1.2.1]
Gruffudd ap Hywel ap Maredudd ab Einion b. Abt 1270
- 7 Ieuan ap Gruffudd ap Hywel [1.1.1.1.2.1.1]
b. Abt 1300
Efa ferch Gruffudd ap Dafydd Goch ap Dafydd d. Aft 1351
- 8 Nest ferch Ieuan ap Gruffudd [1.1.1.1.2.1.1.1]
[ =>]
- 8 Nest ferch Ieuan ap Gruffudd [1.1.1.1.2.1.1.1]
- 7 Ieuan ap Gruffudd ap Hywel [1.1.1.1.2.1.1]
- 6 Angharad ferch Tegwared y Baiswen ap Llywelyn ab Iorwerth Drwyndwn ab Owain Gwybnedd [1.1.1.1.2.1]
- 5 Gruffudd ab Ednyfed Fychan ap Cynwrig ab Iorwerth [1.1.1.1.3]
d. 1246
Margred ferch Einion ap Gwalchmai
- 6 Gwenllian ferch Gruffudd ab Ednyfed Fychan [1.1.1.1.3.1]
Hywel ap Maredudd ab Einion ap Caradog b. Abt 1230
- 7 Gruffudd ap Hywel ap Maredudd ab Einion [1.1.1.1.3.1.1]
b. Abt 1270
Angharad ferch Tegwared y Baiswen ap Llywelyn ab Iorwerth Drwyndwn ab Owain Gwybnedd
- 8 Ieuan ap Gruffudd ap Hywel [1.1.1.1.3.1.1.1]
b. Abt 1300 [ =>]
- 8 Ieuan ap Gruffudd ap Hywel [1.1.1.1.3.1.1.1]
- 7 Gruffudd ap Hywel ap Maredudd ab Einion [1.1.1.1.3.1.1]
- 6 Gwenllian ferch Gruffudd ab Ednyfed Fychan [1.1.1.1.3.1]
- 5 Gronwy ab Ednyfed Fychan ap Cynwrig ab Iorwerth [1.1.1.1.1]
- 4 Ednyfed Fychan ap Cynwrig ab Iorwerth ap Gwgon [1.1.1.1]
- 3 Angharad ferch Hwfa ap Cynwrig ap Rhiwallon ap Dingad ap Tudur Trefor [1.1.1]
Cadwgon ap Madog ap Cadwgon ap Bleddyn
- 3 Madog ap Cadwgon ap Madog ap Cadwgon [1.1.2]
b. Abt 1170
Efa ferch Madog ap Philip ab Uchtrud
- 4 Nest ferch Madog [1.1.2.1]
Einion ap Seisyll b. Abt 1170
- 5 Margred ferch Einion ap Seisyll [1.1.2.1.1]
Thomas ap Rhodri ab Owain Gwynned b. Abt 1170
- 6 (Unknown daughter of Thomas ap Rhodri) [1.1.2.1.1.1]
Maredudd ab Owain ap Gruffudd ab Yr Arglwydd Rhys d. Mar 1265
- 7 Owain ap Maredudd ab Owain ap Gruffudd [1.1.2.1.1.1.1]
d. 15 Aug 1275
- 8 Llywelyn ab Owain ap Maredudd ab Owain [1.1.2.1.1.1.1.1]
d. 1309 [ =>]
- 8 Llywelyn ab Owain ap Maredudd ab Owain [1.1.2.1.1.1.1.1]
- 7 Owain ap Maredudd ab Owain ap Gruffudd [1.1.2.1.1.1.1]
- 6 (Unknown daughter of Thomas ap Rhodri) [1.1.2.1.1.1]
- 5 Margred ferch Einion ap Seisyll [1.1.2.1.1]
- 4 Nest ferch Madog [1.1.2.1]
- 3 Madog ap Cadwgon ap Madog ap Cadwgon [1.1.2]
- 2 Gwenllian ferch Owain Gwynedd [1.1]