| Name | John DUKE OF BRITTANY | |
| Suffix | IV | |
| Gender | Male | |
| Person ID | I12750 | Ancestrees |
| Last Modified | 30 Sep 2024 | |
| Family | Mary D. OF EDWARD III, Duchess of Brittany, b. 10 Oct 1344 d. 1362 (Age 17 years) | |
| _MARRIED | N | |
| Family ID | F3825 | Group Sheet | Family Chart |
| Last Modified | 30 Sep 2024 | |
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