In the 1640s, a young man from Chablais (French Alps) had been possessed by the devil for 5 years, when he was brought to the tomb of St Francis de Sales. There, after five days, he was liberated.
When a bishop as well as a nun called Mother Francoise Magdeleine de Changy (1611-1682), Superior of the first monastery of the Visitation of Annecy, questioned him, the demon repeated with fury: “Ah! Why do I have to go out?” Mother de Changy exclaimed: “Oh! Holy Mother of God, pray for us! Mary, Mother of Jesus, help us!”
At these words, Satan increased his frightful screams, shouting, "Mary! I have no Virgin Mary! If I had a Virgin Mary for myself like you have, I would not be what I am! ... If I had a single moment of all those you waste, and a Virgin Mary, I would no longer be a demon!”
From Le Chapelet des Enfants (The Children’s Rosary)