
| Name | Llywelyn ap Seisyll | |
| Birth | 0980 | Rhuddlan, Wales |
| Gender | Male | |
| Death | 1023 | |
| Notes |
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| Person ID | I7266 | Wilson-Maynard Family Tree |
| Last Modified | 24 Jun 2004 | |
| Family | Angharad Verch Maredudd, b. Abt. 982, Deheubarth, Wales | |
| Notes |
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| Family ID | F4036 | Group Sheet | Family Chart |