Santi Quattro Coronati
Pope Leo XIII appointed him Bishop of Guastalla on 14 December 1891. He was appointed to the see of Ferrara in 1896. As Archbishop of Ferrara he was created Cardinal-Priest of Santi Quattro Coronati in the consistory of 19 June 1899. He resigned pastoral government of the archdiocese of Ferrara on 19 April 1900. On the death of Pope Leo XIII he participated in the conclave of 1903 that elected Pope Pius X. He was Camerlengo of the Sacred College of Cardinals from 1906 until 1907, and in 1910 he was appointed Archpriest of the Patriarchal Lateran basilica, a position he held until his death three years later.