Catholic Mariology is the area of theology concerned with Mary, the Mother of God, not only with her life, but her veneration in daily life, prayer, art,music, and architecture. Throughout history numerous Roman Catholic saints have attested to the central role of Mary in God's plan of salvation and have contributed to the growth of Mariology. This article reviews the Mariology of the saints, as a force that has shaped and transformed our current understanding of Marian dogmas, doctrines and devotions.