This building is now occupied by the offices of the university and stands on Plaza San Diego, near to Plaza Cervantès. Its fine plateresque façade (1543), the work of Rodrigo Gil de Hontañón, is made up of three sections crowned by a balustrade. You will visit he Patio Mayor with its three floors that give a certain majesty and the charming patio trilingue (1557), where the dead languages were taught, and finally the Paraninfo, with its caisson ceiling.