Born in Troyes, she traveled to Fort Ville-Marie (now Montreal) by 1653, where she developed the convent and educated young girls, the poor, and children of First Nations until shortly before her death at the turn of the 18th century.
She is also significant for developing one of the first uncloistered religious communities in the Catholic Church.
Declared "venerable" by the pope in 1878, she was canonized in 1982 and declared a saint by the Catholic Church.