The New International Encyclopædia/Diocletian, Baths of
DIOCLETIAN, dī′o-klē′sh𝑎n, Baths of. Baths at Rome, built by Diocletian and Maximian, opened in A.D. 306 and still used at the time of Theodoric. The ruins were converted into a Carthusian monastery, and the tepidarium into the Church of Santa Maria dei Angeli, by Michelangelo; a circular hall at the southwest corner of the outer wall was made into the Church of San Bernardo in 1594. The cloisters of the monastery are now used as a temporary museum.