Mervyn, Prince of Powys

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- 1 Mervyn, Prince of Powys [1] d. 904
- 2 Avendreg, of Powys [1.1]
Idwal, Prince of N. Wales d. 942
- 3 Meyric, Of North Wales [1.1.1]
d. 986
- 4 Idwal, Prince of N. Wales II [1.1.1.1]
d. 996
- 5 Iago, Prince of North Wales III [1.1.1.1.1]
d. 1039
- 6 Cynan, of North Wales [1.1.1.1.1.1]
Dublin, Raignalt of
- 7 Cynfyn, Ap Prince, North Wales Gruffydd [1.1.1.1.1.1.1]
b. 1055 d. 1137
Tegaingl, Ankaret of
- 8 Gwinedh, Prince of North Wales Owain I [1.1.1.1.1.1.1.1]
d. 1170
Gladys, of North Wales
- 9 Drwyndwn, Prince of North Wales Iorworth [1.1.1.1.1.1.1.1.1]
d. 1174
Powys-Vadoc, Maret of
- 10 Iorworth, Ap Prince, N.Wales Llewellyn [1.1.1.1.1.1.1.1.1.1]
b. Abt 1164 d. 11 Apr 1240
- 11 Helen, of North Wales [1.1.1.1.1.1.1.1.1.1.1]
Donald, Earl ofMar d. 1297
- 12 Mar, Isabel of [1.1.1.1.1.1.1.1.1.1.1.1]
d. 1297 [ =>]
- 12 Mar, Isabel of [1.1.1.1.1.1.1.1.1.1.1.1]
- 11 Helen, of North Wales [1.1.1.1.1.1.1.1.1.1.1]
- 10 Iorworth, Ap Prince, N.Wales Llewellyn [1.1.1.1.1.1.1.1.1.1]
- 9 Drwyndwn, Prince of North Wales Iorworth [1.1.1.1.1.1.1.1.1]
- 8 Susanna, of North Wales [1.1.1.1.1.1.1.2]
Madoc Prince of Powys d. 1160
- 9 Powys-Vadoc, Maret of [1.1.1.1.1.1.1.2.1]
Drwyndwn, Prince of North Wales Iorworth d. 1174
- 10 Iorworth, Ap Prince, N.Wales Llewellyn [1.1.1.1.1.1.1.2.1.1]
b. Abt 1164 d. 11 Apr 1240
- 11 Helen, of North Wales [1.1.1.1.1.1.1.2.1.1.1]
Donald, Earl ofMar d. 1297
- 12 Mar, Isabel of [1.1.1.1.1.1.1.2.1.1.1.1]
d. 1297 [ =>]
- 12 Mar, Isabel of [1.1.1.1.1.1.1.2.1.1.1.1]
- 11 Helen, of North Wales [1.1.1.1.1.1.1.2.1.1.1]
- 10 Iorworth, Ap Prince, N.Wales Llewellyn [1.1.1.1.1.1.1.2.1.1]
- 9 Powys-Vadoc, Maret of [1.1.1.1.1.1.1.2.1]
- 8 Gwinedh, Prince of North Wales Owain I [1.1.1.1.1.1.1.1]
- 7 Cynfyn, Ap Prince, North Wales Gruffydd [1.1.1.1.1.1.1]
- 6 Cynan, of North Wales [1.1.1.1.1.1]
- 5 Iago, Prince of North Wales III [1.1.1.1.1]
- 4 Idwal, Prince of N. Wales II [1.1.1.1]
- 3 Meyric, Of North Wales [1.1.1]
- 2 Tryffyn, of Powys [1.2]
- 3 Isabel [1.2.1]
Ivor Lord of Builth
- 4 Cynelin Lord of Builth [1.2.1.1]
- 5 Glodryyd, Lord of Builth Elystan [1.2.1.1.1]
b. 932 d. 1010
- 6 Cadogan Lord of Builth [1.2.1.1.1.1]
- 7 Idnerth Lord of Builth [1.2.1.1.1.1.1]
- 8 Dyddgy, of Builth [1.2.1.1.1.1.1.1]
Llywarch d. 1129
- 9 Gladys, of North Wales [1.2.1.1.1.1.1.1.1]
Gwinedh, Prince of North Wales Owain I d. 1170
- 10 Drwyndwn, Prince of North Wales Iorworth [1.2.1.1.1.1.1.1.1.1]
d. 1174
Powys-Vadoc, Maret of
- 11 Iorworth, Ap Prince, N.Wales Llewellyn [1.2.1.1.1.1.1.1.1.1.1]
b. Abt 1164 d. 11 Apr 1240
- 12 Helen, of North Wales [1.2.1.1.1.1.1.1.1.1.1.1]
[ =>]
- 12 Helen, of North Wales [1.2.1.1.1.1.1.1.1.1.1.1]
- 11 Iorworth, Ap Prince, N.Wales Llewellyn [1.2.1.1.1.1.1.1.1.1.1]
- 10 Drwyndwn, Prince of North Wales Iorworth [1.2.1.1.1.1.1.1.1.1]
- 9 Gladys, of North Wales [1.2.1.1.1.1.1.1.1]
- 8 Dyddgy, of Builth [1.2.1.1.1.1.1.1]
- 7 Idnerth Lord of Builth [1.2.1.1.1.1.1]
- 6 Cadogan Lord of Builth [1.2.1.1.1.1]
- 5 Glodryyd, Lord of Builth Elystan [1.2.1.1.1]
- 4 Cynelin Lord of Builth [1.2.1.1]
- 3 Isabel [1.2.1]
- 2 Avendreg, of Powys [1.1]