JUD (22 September 1843 – 22 March 1913) was an Italian Catholic prelate who served as Archpriest of the Basilica of Saint John Lateran and vicar general of Rome.

Ordained to the priesthood on the last day of March 1866 in Rome, he afterwards worked in the Archdiocese of Bologna as professor of Sacred Liturgy and Christian Archology of its seminary from 1872 to June 1874.

Pope Leo XIII appointed him Bishop of Guastalla on 14 December 1891.

As Archbishop of Ferrara he was created Cardinal-Priest of Santi Quattro Coronati in the consistory of 19 June 1899.

[4] 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.