Llywarch
- 1129(
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- 1 Llywarch [1] d. 1129
- Dyddgy, of Builth
- 2 Gladys, of North Wales [1.1]
- Gwinedh, Prince of North Wales Owain I d. 1170
- 3 Drwyndwn, Prince of North Wales Iorworth [1.1.1] d. 1174
- Powys-Vadoc, Maret of
- 4 Iorworth, Ap Prince, N.Wales Llewellyn [1.1.1.1] b. Abt 1164 d. 11 Apr 1240
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- 4 Iorworth, Ap Prince, N.Wales Llewellyn [1.1.1.1]
- 3 Drwyndwn, Prince of North Wales Iorworth [1.1.1]
- 2 Gladys, of North Wales [1.1]