Background
She was the daughter of the rich noble Louis d'Amboise, prince of Talmont and Viscount of Thouars. To escape from the violence of the times, she fled with her mother, Louise-Marie de Rieux, to the court of Brittany, which resided in Vannes and, later on, in Nantes.
Career
At the age of three she had been engaged to Peter, the second son of John V, Duke of Brittany, for political reasons. Françoise d'Amboise became the Duchess of Brittany and had a discrete but active share in governing Brittany. She came to help the poor and the sick.
She had also a strong feeling about justice. Her husband died of a disease in 1457. She then entered into a conflict with King Louis XI who wanted to marry her.
She took the veil in 1468, when entering the convent of the Three Maries at Vannes. She died in Nantes, at the monastery of the Carmelite nuns. In 1863, she was beatified by Pope Pius IX.