Péronelle de Thouars, born in circa 1330, was the daughter of Louis l and Jeanne de Dreux. She was the lady of Tiffauges and vassal of the Duke of Brittany. Upon her death in 1397, the elder branch of the family became extinct.
Tiffauges fortress belonged to the Thouars family until 1420, when the ultimate heiress Catherine de Thouars married Gilles de Laval, Sire of Rais. The mighty prince was one of Jeanne d’Arc’s first companions.
In 1341, John III of Brittany died. Two pretenders show up : Jeanne de Penthièvre and her husband Charles de Blois who back the King of France and Philippe IV and Jean de Montfort who pay respects to Edward III, King of England.
The duchy destiny is settled when the French were defeated and Charles de Blois died at the battle of Auray in 1364. Jean de Montfort was appointed Duke of Brittany by the treaty of Guérande in 1365.
John II becomes Duke of Bourbon after Peter I died at the battle of Poitiers in 1356. Great commander, he served the French monarchy for more than half a century