
| Name | Jean III, "The Good" De BRETAGNE | |
| Suffix | DUKE OF BRITTANY | |
| Gender | Male | |
| Person ID | I10540 | Coombs |
| Last Modified | 22 Jan 2013 | |
| Family | Isabelle De VALOIS, b. 1292, Of, Fontainebleau, , France d. 1309 (Age 17 years) | |
| Marriage | 1297 | , , France |
| Family ID | F4023 | Group Sheet | Family Chart |
| Last Modified | 2 Feb 2026 | |
| Sources |