Albert the Great was one of the Church's greatest intellects. He studied at the University of Padua and later taught at Hildesheim, Freiburg-im-Breisgau, Regensburg, and Strasbourg. He then taught at the University of Paris, where he received his doctorate in 1245. He was among the first and greatest of the natural scientists, gaining a reputation for expertise in biology, chemistry, physics, astronomy, geography, metaphysics, and mathematics. He was also very learned in biblical studies and theology. He is the patron of scientists and his feastday is November 15.