Roman Catholic Diocese of Monte Cassino

The Diocese of Monte Cassino (Latin: Dioecesis Cassinensis) was a Roman Catholic diocese located in Monte Cassino, a rocky hill on the former site of the Roman town of Casinum about 130 km southeast of Rome, Italy, 2 km to the west of the modern town of Cassino. It was erected on 2 May 1322 and suppressed in December 1367.

Bishops

 * Oddone della Sala (6 June 1323 – ????), as apostolic administrator
 * Raymond de Gramat (9 April 1326 – 26 July 1340)
 * Guido di San Germano (6 November 1340 – ????)
 * Richer de Miremont (10 October 1341 – 27 February 1343)
 * Étienne Aldebrand (14 March 1343 – 13 February 1346), transferred to the diocese of Saint-Pons-de-Thomières
 * Guillaume de Rosières (7 April 1346 – 1353), transferred to the diocese of Tarbes
 * Francesco Atti (17 April 1353 – 1355)
 * Angelo Acciaioli (18 March 1355 – 4 October 1357)
 * Angelo della Posta (23 March 1358 – ????)
 * Angelo Orsini (26 August 1362 – December 1367)