克里斯蒂安一世
The University of Copenhagen was founded on 1 June 1479 and is the oldest university in Denmark. In 1475, Christian I of Denmark received a papal bull from Pope Sixtus IV with permission to establish a university in Denmark. The bull was issued on 19 June 1475 as a result of the visit to Rome by Christian I's wife, Dorothea of Brandenburg, Queen of Denmark.