Francis I, Duke of Brittany Duke of Brittany (1414–1450) Parents Joan of France, Duchess of Brittany John V Children Marie of Brittany, Viscountess of Rohan Margaret of Brittany Jeanne bâtarde de Bretagne Siblings Peter II, Duke of Brittany Gilles de Bretagne Isabella of Brittany Partners NN Isabella of Scotland, Duchess of Brittany Bonne of Savoy Yolande of Anjou
