Ancestry Research in Ireland

| Name | Gwladus ferch Llywelyn | |
| Birth | Abt. 1205 | Caernarvonshire, Wales |
| Gender | Male | |
| Death | 1251 | Windsor, Berkshire, England |
| Person ID | I100 | O'Brien Genealogy |
| Last Modified | 22 May 2026 | |
| Father | Llywelyn the Great, b. Abt. 1173 d. 11 Apr 1240 (Age 67 years) | |
| Family ID | F51 | Group Sheet | Family Chart |
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