The Italian Roman Catholic Diocese of Fidenza (Latin: Dioecesis Fidentina) in the Province of Parma, was until 1927 the historical Diocese of Borgo San Donnino. It is a Latin suffragan of the Metropolitan Archdiocese of Modena-Nonantola.
Its cathedral episcopal see is the Cathedral of San Donnino Martire, in Fidenza, and it has a Minor Basilica, the Basilica di San Lorenzo, in Monticelli d'Ongina.
In 1114 was established a Provostry nullius of Borgo San Donnino, on territories split off from the Dioceses of Parma and Piacenza, governed ecclesiastically by a provost with full faculties, subject directly to the Holy See as an exempt diocese.
It became an episcopal see as Diocese of Borgo San Donnino on 12 December 1601, under Pope Clement VIII. The last provost, Papiro Picedi da Castel Vezzano, was promoted as the first Bishop of Borgo San Donnino.
On 22 September 1927 it was renamed as Diocese of Fidenza.
It enjoyed a Papal visit from Pope John Paul II in June 1988.
On 2003.01.14 it gained territory from the Diocese of Piacenza–Bobbio.
As per 2014, it pastorally served 65,282 Catholics (90.3% of 72,325 total) on 516 km² in 70 parishes with 49 priests (42 diocesan, 7 religious), 14 deacons, 45 lay religious (8 brothers, 37 sisters) and 3 seminarians .
(all Roman Rite)
Suffragan Bishops of Borgo San Donnino
Papirio Picedi (1603.01.08 – 1606.08.30), later Bishop of Parma (Italy) (1606.08.30 – death 1614.03.04)
Giovanni Linati (1606.12.04 – 1619.10.09), later Bishop of Piacenza (Italy) (1619.10.09 – death 1627.04.03)
Alfonso Pozzi (1620.03.29 – death 1626.08.25)
Ranuccio Scotti Douglas (1627.02.27 – death 1650.03.13), but also papal diplomat, notably apostolic nuncio to France (1639 – 1641), ?also under Pope Urban VIII as Apostolic Nuncio to Switzerland
Filippo Casoni (1650.03.03 – death 1659.07.22), who urged Ferdinando Ughelli to write his Italia Sacra
Alessandro Parravicini, Benedictine Order (O.S.B.) (1660.01.12 – death 1675.05.21)
Gaetano Garimberti Theatines (C.R.) (1675.12.16 – death 1684.03.20)
Nicolò Caranza (1686.08.12 – death, 1697.11.25)
Giulio Della Rosa (1698.07.21 – death 1699.12.31)
Alessandro Roncovieri (1700 – death 1711.05.29)
Adriano Sermattei (1712.02.12 – 1719.03.15), later Bishop of Tuscanella (1719.03.15 – 1731.04.09), Bishop of Viterbo (Italy) (1719.03.15 – death 1731.04.09)
Gherardo Zandemaria alias Gerardo Giandemaria (1719.05.15 – 1731.12.24), later Bishop of Piacenza (Italy) (1731.12.24 – death 1747.11.05)
Severino Antonio Missini (1732.06.09 – death 1753.01.20)
Girolamo Baiardi alias Bajardi (1753.04.09 – death 1775.08.24)
Alessandro Garimberti (1776.01.29 – death 1813.04.02)
Aloisio San Vitale (1817.07.28 – 1836.11.21), later Bishop of Piacenza (Italy) (1836.11.21 – death 1848.10.25)
Giovanni Tommaso Neuschel (1836.11.21 – 1843.01.27), previoulsy Titular Bishop of Troas (1828 – 1828.09.30), Bishop of Guastalla (Italy) (1828.09.30 – 1836.11.21); later Bishop of Parma (Italy) (1843.01.27 – 1852.09.17), emeritate as Titular Archbishop of Theodosiopolis (Aprus) (1852.09.17 – death 1863.12.10)
Pier Grisologo Basetti (1843.06.22 – death 1857.06.16), previously Titular Bishop of Sebaste (1834.12.19 – 1843.06.22)
Francesco Benassi (1859.06.20 – 1871.10.27), later Bishop of Guastalla (Italy) (1871.10.27 – 1884.11.10), emeritate as Titular Bishop of Argos (1884.11.10 – 1892.03.15)
Giuseppe Buscarini (1871.11.24 – death 1872.09.11)
Gaetano Guindani (1872.12.23 – 1879.09.19), later Bishop of Bergamo (Italy) (1879.09.19 – death 1904.10.21)
Vincenzo Manicardi (1879.09.19 – 1886.06.07), later Bishop of Reggio Emilia (Italy) (1886.06.07 – death 1901.10.20)
Giovanni Battista Tescari (1886.06.07 – death 1902.07.08)
Pietro Terroni (1903.06.22 – death 1907.08.28)
Leonida Mapelli (1907.10.14 – death 1915.02.24)
Giuseppe Fabbrucci (1915.08.06 – 1927.09.22 see below)
Suffragan Bishops of Fidenza
Giuseppe Fabbrucci (see above 1927.09.22 – 1930.08.09)
Mario Vianello (1931.03.06 – 1943.03.11), later Archbishop of Perugia (Italy) (1943.03.11 – death 1955.08.13)
Francesco Giberti (1943.05.12 – death 1952.02.19)
Paolo Rota (1952.12.28 – death 1960.12.31); previously Titular Bishop of Memphis (1947.03.10 – 1952.12.28) & Auxiliary Bishop of Cremona (Italy) (1947.03.10 – 1952.12.28)
Guglielmo Bosetti (1961.03.29 – death 1962.08.01); previously Titular Bishop of Hippo Diarrhytus (1951.11.04 – 1961.03.29) & Auxiliary Bishop of Brescia (Italy) (1951.11.04 – 1961.03.29)
Mario Zanchin (1962.09.30 – retired 1988.08.13)
Carlo Poggi (1988.08.13 – death 1997.09.07)
Maurizio Galli (1998.04.02 – retired 2007.06.30)
Carlo Mazza (2007.10.01 – retired 2017.03.17)
Bishop-elect Ovidio Vezzoli (2017.03.17 – ... ).
