The Diocese of Montepeloso (also Diocese of Irsina) (Latin: Dioecesis Montis Pelusii) was a Roman Catholic diocese located in the town of Montepeloso in the province of Matera in the Southern Italian region of Basilicata. It was united with the Diocese of Gravina (di Puglia) to form the Diocese of Gravina e Irsina (Montepeloso) in 1818.
1000: Established as Diocese of Montepeloso
1042: Suppressed
1123: Restored as Diocese of Montepeloso
1133: Suppressed to the Diocese of Andria
1452: Restored as Diocese of Montepeloso from the Diocese of Andria
27 June 1818: United with the Diocese of Gravina (di Puglia) to form the Diocese of Gravina e Irsina (Montepeloso)
Latin Name: Montis Pelusii
Metropolitan: Archdiocese of Trani
Antonius de Maffeis (1479–1482 Died)
Julius Caesar Cantelmi (1482–1491 Resigned)
Leonardo Carmini (1491–1498 Appointed, Bishop of Trivento)
Marcus Copula, O.S.B. (1498–1527 Died)
Augustinus Landulfus, O.S.A. (1528–1532 Resigned)
Giovanni Domenico de Cupis (1532–1537 Resigned)
Paolo de Cupis (1546–1548 Appointed, Bishop of Recanati)
Ascanio Ferrari (1548–1550 Resigned)
Vincenzo Ferrari (1550–1561 Resigned)
Giovanni Ludovico da Campania 1561–1566 Appointed, Bishop of Mottola)
Vincenzo Ferrari (1564–1578 Appointed, Bishop of Umbriatico)
Lucio Maranta (1578–1592 Died)
Gioia Dragomani (1592–1596 Resigned)
Camillus de Scribani (1596–1600 Died)
Hippolytus Manari, O.S.M. (1600–1604 Died)
Francesco Persico (1605–1615 Died)
Tommaso Sanfelice, C.R. (1615–1620 Died)
Honorius Griffagni, O.S.B. (1621–1623 Died)
Diego Merino, O. Carm. (1623–1626 Appointed, Bishop of Isernia)
Theodorus Pelleoni, O.F.M. Conv. (1627–1636 Died)
Gaudius Castelli (1637–1638 Died)
Attilio Orsini (1638–1655 Died)
Filippo Cesarini (1655–1674 Appointed, Bishop of Nola)
Raffaele Riario Di Saono, O.S.B. (1674–1683 Died)
Raffaele Parrillo (1683–)
Fabrizio Susanna (1684–1705 Died)
Antonio Aiello (1706–1714 Died)
Domenico Potenza (1718–1739 Died)
Cesare Rossi (1739–1750 Appointed, Bishop of Gerace)
Bartolomeo Coccoli (1750–1761 Died)
Francesco Paolo Carelli (1761–1763 Died)
Tommaso Agostino de Simone (1763–1781 Died)
Francesco Saverio Saggese (1792–1794 Died)
Michelangelo Lupoli (1797–1818 Confirmed, Archbishop of Conza e Campagna)
27 June 1818: United with the Diocese of Gravina (di Puglia) to form the Diocese of Gravina e Irsina (Montepeloso)
