Margaret Mary Alacoque
Margaret Mary Alacoque (22 July 1647 – 17 October 1690) was a French Visitation nun and mystic who promoted devotion to the Sacred Heart of Jesus in its modern form.
In the Martyrology
- October 16 Saint Margaret Mary Alacoque, virgin of the Order of the Visitation of Holy Mary, visionary of the Sacred Heart of Jesus
- October 17 Transitus of Saint Marguerite-Marie Alacoque, virgin