The University greatly expanded during the 19th century, and its accommodations in central Madrid proved to be increasingly inadequate. Besides the greater number of students, after its move from Alcalá the University had been based in a number of preexisting, government-acquired properties – mainly aristocratic mansions and royal châteaux from centuries past, abandoned by their owners for more contemporary lodgings. Though they were not without their charm, the ancient buildings were not ideal as educational settings, and the early 20th century witnessed the students of the Central University attending philosophy lectures and anatomy lessons in elaborate spaces that had served as ballrooms and salons only a few decades prior.