| Father | Male Duke John V. of Montfort of Brittany |
| Born | 1338 | Brittany - son of John de Montfort |
| Died | 1399 | Brittany, France |
| Buried | ||
| Married | circa 1363 | England |
| Other Spouse | Joan (Joanna) of Navarre, Queen of England | F7311 | |
| Married | 1386 | |
| Father | ||
| Mother | ||
| Mother | Female Mary of England, Duchess of Brittany |
| Born | Aft 1343 | England |
| Died | Bef 1376 | England |
| Buried | ||
| Father | Edward III England | F7300 Group Sheet | |
| Mother | Philippa of Hainaut, Queen of England | F7300 Group Sheet | |