Louise de Marillac
Saint Louise was filled with a great love for the Blessed Virgin:
« I am entirely yours, most Holy Virgin, that I may more perfectly belong to God. »
In spite of controversies that existed in the Church on the matter, Louise was convinced of the Immaculate Conception of the Mother of God and wanted it to be recognized and celebrated, for 
« The Blessed Virgin is the only pure creature who was always pleasing to God. »
The Daughters of Charity add a short prayer at the end of each decade when they pray the rosary, part of which appears in gold letters in the dome of the Chapel:
« Most holy Virgin, I believe and confess your holy and Immaculate Conception. »
In 1644, at the time of a pilgrimage to Chartres, Saint Louise consecrated the Company of the Daughters of Charity to the Blessed Virgin.
The final words of her Spiritual Testament express her Marian devotion:
« Take good care of the service of the poor. Above all, live together in great union and cordiality, loving one another in imitation of the union and life of Our Lord. Pray earnestly to the Blessed Virgin, that she may be your only Mother. »
