Saint Louis Mary Grignion de Montfort

Saint of the Day for April 27

(January 31, 1673 – April 28, 1716)


Saint Louis Mary Grignion de Montfort’s Story

Louis’s life is inseparable from his efforts to promote genuine devotion to Mary, the mother of Jesus and mother of the Church. Totus tuus (“completely yours”) was Louis’s personal motto; Pope John Paul II chose it as his episcopal motto.

Born in the Breton village of Montfort, close to Rennes (France), as an adult Louis identified himself by the place of his Baptism instead of his family name, Grignion. After being educated by the Jesuits and the Sulpicians, he was ordained as a diocesan priest in 1700.

Soon he began preaching parish missions throughout western France. His years of ministering to the poor prompted him to travel and live very simply, sometimes getting him into trouble with Church authorities. In his preaching, which attracted thousands of people back to the faith, Father Louis recommended frequent, even daily, holy Communion (not the custom then!) and imitation of the Virgin Mary’s ongoing acceptance of God’s will for her life.

Louis founded the Missionaries of the Company of Mary (for priests and brothers) and the Daughters of Wisdom, who cared especially for the sick. His book True Devotion to the Blessed Virgin has become a classic explanation of Marian devotion.

Louis died in Saint-Laurent-sur-Sèvre, where a basilica has been erected in his honor. He was canonized in 1947.


Like Mary, Louis experienced challenges in his efforts to follow Jesus. Opposed at times in his preaching and in his other ministries, Louis knew with Saint Paul, “Neither the one who plants nor the one who waters is anything, but only God, who causes the growth” (1 Corinthians 3:7). Any attempt to succeed by worldly standards runs the risk of betraying the Good News of Jesus. Mary is “the first and most perfect disciple,” as the late Raymond Brown, S.S., described her.

The Liturgical Feast of Saint Louis Mary Grignion de Montfort is April 28.