| Male Iorwerth "Drwyndwn" ap Owain, Prince of North Wales |
| Birth | 1145 | Royal Palace of Aberffraw, Anglesey, Wales Royal Palace of Aberffraw, Anglesey, Wales |
| Death | Abt 1184 | |
| Burial | ||
| Marriage | Yes, date unknown [1, 2] | Wales [1, 2] |
| Father | Owain Gwynedd ap Gruffydd, Prince of North Wales | F5069 Group Sheet | |
| Mother | Gwladus verch Llywarch | F5069 Group Sheet | |
| Female Margred verch Madog |
| Birth | ||
| Death | ||
| Burial | ||
| Father | Madog ap Maredydd | F5070 Group Sheet | |
| Mother | Susanna verch Gruffydd | F5070 Group Sheet | |
| Male + Llewelyn ap Iorwerth, Prince of North Wales |
| Birth | 1173 | Royal Palace of Aberffraw, Anglesey, Wales Royal Palace of Aberffraw, Anglesey, Wales |
| Death | 11 Apr 1240 | Aberconwy, Arllechwedd Isaf, Caernarvonshire, Wales |
| Burial | ||
| Spouse | Tangwystl verch Llywarch | F5067 | |
| Marriage | ||
| Spouse | Joan, Princess of England | F5065 | |
| Marriage | 1206 | |
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Sources 🟢 Primary Evidence 🟡 Secondary Evidence 🟠Tertiary Evidence 🔴 Unreliable Evidence |
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