Margaret Mary Alacoque, VHM () (22 July 1647 – 17 October 1690), was a French Catholic Visitation nun and mystic who promoted devotion to the Sacred Heart of Jesus in its modern form. Summary She worked to prove the genuineness of her vocation and her visions of Jesus and Mary relating to the Sacred Heart. She was initially rebuffed by her mother superior and was unable to convince theologians of the validity of her visions and revelations. A noted exception was the Jesuit Claude de la Colombière, later a canonized saint, who supported her. The devotion to the Sacred Heart was officially recognized 75 years after Alacoque's death. Early life Alacoque was born in 1647 in L'Hautecour, Burgundy, France, now part of the commune of Verosvres, then in the Duchy of Burgundy, the only daughter of Claude and Philiberte Lamyn Alacoque, who also had several sons. From early childhood, Margaret was described as showing intense love for the Blessed Sacrament, and as preferring silence and prayer to childhood play. After her First Communion at the age of nine, she practiced in secret severe corporal mortification, until rheumatic fever confined her to bed for four years. At the end of this period, having made a vow to the Blessed Virgin Mary to consecrate herself to religious life, it is said she was instantly restored to perfect health. In recognition of this favor, she added the name "Mary" to her baptismal name of Margaret. According to her later account of her life, she had visions of Jesus Christ, which she thought were a normal part of human experience and continued to practice austerity. Alacoque lost her father at a young age, and the family's assets were held by a relative who refused to hand them over, plunging her family into poverty. During this time, her only consolation was frequent visits to pray before the Blessed Sacrament in the local church. When she was 17, however, the family regained their fortune and her mother encouraged her to socialize, in the hopes of her finding a suitable husband. Out of obedience, and believing that her childhood vow was no longer binding, she began to accompany her brothers in the social events, attending dances and balls. One night, after returning home from a ball for Carnival dressed in her finery, she experienced a vision of Christ, scourged and bloody. He reproached her for her forgetfulness