| Name | Constance of_Brittany | |
| Title | Duchess | |
| Gender | Female | |
| Death | 1201 | |
| Person ID | I1506 | Test |
| Last Modified | 13 Jun 2026 | |
| Father | Duke Conan of_Brittany | |
| Family ID | F770 | Group Sheet | Family Chart |
Family 1 ![]() |
Duke of Brittany Geoffrey, b. 23 Sep 1158 d. 19 Aug 1186, Paris (Age 27 years) | |||||
| Marriage | Jul 1181 | |||||
| Children |
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| Family ID | F563 | Group Sheet | Family Chart | ||||
| Last Modified | 13 Jun 2026 | |||||
Family 2 ![]() |
Earl of Chester Ranulph | |
| Family ID | F771 | Group Sheet | Family Chart |
| Last Modified | 13 Jun 2026 | |
Family 3 ![]() |
Viscount Guy of_Thouars | |
| Family ID | F772 | Group Sheet | Family Chart |
| Last Modified | 13 Jun 2026 | |