Saint Albertus Magnus (Albert the Great) was a Dominican. He was a teacher of Saint Thomas Aquinas. He is one of the greatest theologians of the Catholic Church. He studied all the sciences, and knew and saw and declared how shallow they were for all purposes of eternal wisdom. His great devotion was to the Blessed Sacrament and to Our Blessed Lady. He was seventy-four years old when he died. Saint Albert the Great is one of the Doctors of the Catholic Church.