Saint Margaret Mary Alacoque 1647-1690 By Mattscott Jul 22, 1647 Born She was born in L'hautecour Dec 9, 1650 Took a vow of chastity She took this at a very young age and was ridiculed by some of her family members for this Aug 25, 1671 Joined the Visitation ,community in Paray-le-Monial She became a nun and chose the name sister Margaret Mary due to her devotion to Mary. She was only 27