Saint Louis-Marie Grignion de Montfort (1673–1716) was a French Catholic priest and missionary best known for his profound influence on Marian devotion. He is the author of the classic spiritual texts "True Devotion to Mary" and "The Secret of the Rosary,"

Saint Louis-Marie de Montfort approached missionary work and care for the marginalized not merely as a social service, but as a direct encounter with Jesus Christ. His radical, hands-on methodology combined spiritual renewal with practical relief for society's most neglected individuals.

Reforming the Poor Houses: In the early 18th century, "hospitals" were chaotic warehouses for society’s outcasts. De Montfort organized these spaces, brought cleanliness, structured the daily routine, and restored human dignity to the inhabitants.

Charitable Education: Recognizing that poverty trapped families for generations, he established free schools for underprivileged boys and girls. He ensured that children of the poorest families learned how to read, write, and gain basic catechism.