Mediatrix

In Roman Catholic Mariology, the title Mediatrix refers to the intercessory role of the Blessed Virgin Mary as a mediator in the salvific redemption by her son Jesus Christ, and that he bestows graces through her. Mediatrix is an ancient title that has been used by a number of saints since at least the 5th century. Its use grew during the Middle Ages and reached its height in the writings of saints Louis de Montfort and Alphonsus Liguori in the 18th century.