Saint Albertus Magnus, O.P. (1193/1206 – November 15, 1280), also known as Saint Albert the Great and Albert of Cologne, was a Dominican friar and bishop who achieved fame for his comprehensive knowledge of and advocacy for the peaceful coexistence of science and religion. He is considered to be the greatest German philosopher and theologian of the Middle Ages. He was the first among medieval scholars to apply Aristotle's philosophy to Christian thought. The Roman Catholic Church honors him as a Doctor of the Church, one of only 33 persons with that honor.