Isabeau of Brittany
| Isabeau of Brittany | |
|---|---|
| Born | c. 1478 Nantes, Brittany |
| Died | 10 June 1490 (aged 11–12) Rennes, Brittany |
| Burial | |
| House | Dreux-Montfort |
| Father | Francis II, Duke of Brittany |
| Mother | Margaret of Foix |
| Religion | Roman Catholicism |
Isabeau of Brittany (in French Isabeau de Bretagne) (1478-10 June 1490), was the younger daughter of Francis II, Duke of Brittany and Margaret of Foix. She was, during her life, her sister Anne of Brittany's heir to the Duchy of Brittany.