Family: Iorwerth Ap Owain / Margaret of Powys Madog maret (F1983)
Owain Prince of Wales (1087-1170) |
Gladys Verch Llywarch (1098- ) 
|
| Madoc Ap Maredydd (1103-1160) |
| Susanna Verch Gruffydd (1095- ) |
| Iorwerth Ap Owain (1130-1184)
|
| Margaret of Powys Madog maret (1150- )
|
Llewelyn of North Llewelyn, Prince of Wales (1173-1240)  |