| Owain Gwynnedd AP GRUFFYD , Prince of Gwynnedd (? - 1170) |
Madoc AP MAREDUDD , Prince of Powys (? - 1160) |
| Gwladys (? - ?) |
Susanna (? - ?) |
| Iowerth Drwyndwn AP OWAIN GWYNNED | Margaret |
| ali. Iowerth the Broken-Nosed b. ? bp. d. ca 1174, Pennant Mehangell bur. occ. rel. edu. |
ali. b. ? bp. d. ? bur. occ. rel. edu. |
| Llywelyn AP IOWERTH , Prince of Wales |