Ancestry Research in Ireland

| Name | Iorwerth Drwyndwn | |
| Birth | Abt. 1130 | |
| Gender | Male | |
| Death | 1174 | Pennant-Melangell, Powys, Wales |
| Burial | St. Melangell's Church, Pennant-Melangell, Powys, Wales |
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| Person ID | I97 | O'Brien Genealogy |
| Last Modified | 22 May 2026 | |
| Father | Owain Gwynedd, King of Gwynedd, b. Abt. 1100, Anglesey, Wales d. Bet. 23-28 Nov 1170, Pennant-Melangell, Powys, Wales (Age 70 years) | |
| Mother | Gwladys ferch Llywarch | |
| Family ID | F49 | Group Sheet | Family Chart |
| Family | Marared ferch Madog | |||
| Children |
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| Family ID | F50 | Group Sheet | Family Chart | ||
| Last Modified | 22 May 2026 | |||
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