Complex sentence: It was merged with the Diocese of Loretto to form the Diocese of Recanati and Loreto in either 1591 or 1592, although it's name changed back to the Diocese of Recanti in 1934.
Split into simpler sentences: It was merged with the Diocese of Loretto to form the Diocese of Recanati and Loreto in either 1591 or 1592. Its name was changed back to the Diocese of Recanti in 1934.