List of abbots of Monte Cassino Last updated June 13, 2025
This is a list of abbots of Monte Cassino . [ 1]
Italian names are given in italics in parentheses for abbots before the third destruction of the abbey.
6th century Benedict of Nursia (Benedetta da Norcia ) : from 525/529 Constantine (Costantino ) : 547–560? Simplicius (Simplicio ) : 560?–576? Vitalis (Vitale ) : 576?–580? Bonitus (Bonito ) : 580?–584 Between c. 580c. 585Lombards and abandoned by its monks.
8th century Petronax (Petronace ) : 717?–747 Optatus (Optato ) : 747? – 760 Ermeris (Ermeri ) : 760–760 Gratian (Graziano ) : 760–764 Tomichis (Tomichi ) : 764–771 Poto (Potone ) : 771–777 Theodemar (Teodemaro ) : 777/778–796 Gisulf (Gisolfo or Gisulfo ) : 796–817 9th century Apollinaris (Apollinare ) : 817–828 Deusdedit (Diodato ) : 828–834 Hilderic (Ilderico ) : 834–834 Autpert (Autperto ) : 834–837 Bassacius (Bassacio ) : 837–856 Bertharius (Bertario ) : 856–883 In 883, the abbey was destroyed by the Aghlabids and the monks moved to Teano and later Capua .
Angelar I (Angelario ) : 883–889 Ragembrand (Ragembrando ) : 890–899 Leo (Leone or Leo ) : 899–914 10th century John I (Giovanni ) : 914–934 Adelpert (Adelperto ) : 934–943/944? Baldwin (Baldovino ) : 943/944?–946 Maielpot (Maielpoto ) : 943/944?–948 With Aligern, the monks return to Monte Cassino.
Aligern (Aligerno ) : 948–985 Manso (Mansone ) : 986–996 John II (Giovanni ) : 996–997 John III (Giovanni ) : 997–1010 11th century John IV (Giovanni IV ) : 1010–1011 Atenulf (Atenolfo ) : 1011–1022 Theobald (Teobaldo ) : 1022–1035 Basil (Basilio ) : 1036–1038 Richer I (Richerio ) : 1038–1055 Peter I (Pietro ) : 1055–1057 Frederick (Federico ) : 1057–1058 Desiderius or Daufer (Desiderio or Dauferio ) : 1058–1087 Oderisius I (Oderisio ) : 1087–1105 12th century Otto (Ottone ) : 1105–1107 Bruno (Bruno ) : 1107–1111 Gerard (Gerardo ) : 1111–1123 Oderisius II (Oderisio ) : 1123–1126 Nicholas I (Nicola ) : 1126–1127 Seniorectus (Senioretto ) : 1127–1137 Rainald I (Rainaldo ) : 1137 Wibald (Guibaldo or Wibaldo ) : 1137 Rainald II (Rainaldo II ) : 1137–1166 Theodin I (Teodino ) : 1166–1167 Giles or Aegidius (Egidio ) : 1168 Dominic (Domenico ) : 1171–1174 Peter II (Pietro II ) : 1174–1186 Roffred (Roffredo dell'Isola ) : 1188–1210 13th century Peter III (Pietro III ) : 1210–1211 Adenulf of Caserta (Adenolfo ) : 1211–1215 Stephen I (Stefano ) : 1215–1227 Landulf Sinibald (Landolfo Sinibaldo ) : 1227–1236 Pandulf (Pandolfo ) : 1237–1238 (apostolic administrator) Stephen II (Stefano ) : 1238–1248 Nicholas II (Nicola ) : 1251 - ? Richard (Riccardo ) : 1252–1262 Theodin II (Teodino II ) : 1262–1263 Bernard Ayglerius (Bernardo Aiglerio ) : 1263–1282 Thomas I (Tommaso ) : 1285–1288 Ponce (Ponzio ) : 1292–1292 William (Guglielmo ) : 1293–1294? Angelar II (Angelario II ) : 1294–1295 Berard (Beraudo ) : 1295–1295 Bernard (Bernardo ) : 1295–1296 (apostolic administrator) Galard (Galardo ) : 1296–1301 14th century Thomas II (Tommaso II ) : 1304–? Marinus (Marino ) : 1306–1313 Isnard de Pontevès (Isnardo ) : ?–? From Raymond on, the abbots are bishops .
Raymond de Gramat (Raimondo ) : 1326–1340 Guy of San Germano (Guido di San Germano ) : 1340–1341 Richer II de Miremont (Richerio ) : 1341–1343 Stephen III Aldebrand [ fr ] Stefano ) : 1343–1345/1346 William II de Rosières (Guglielmo ) : 1345–1346–1353 In 1349, the abbey was destroyed by an earthquake .
From Bartolomeo on, the abbots are once again monks (not bishops).
Bartolomeo da Siena : 1369–1369 Andrea I da Faenza : 1369–1373 Pietro IV de Tartaris : 1374–1395 Enrico Tomacelli : 1396–1413 15th century Pirro Tomacelli : 1414–1442 Antonio Carafa : 1446–1454 From Ludovico on, the abbots are in commendam .
16th century From Zaccaria on, the abbots are heads of the Cassinese congregation.
Zaccaria Castagnola : 1506–1509 Graziano II : 1509–1510 Ignazio Squarcialupi : 1510–1516 Vincenzo de Riso : 1517–1518 Teofilo Piacentini : 1519–1520 Ignazio Squarcialupi : 1520–1521 (second time) Ludovico Trivulzio : 1522–1522 Giustino Harbes : 1522–1523 Ignazio Squarcialupi : 1524–1526 (third time) Crisostomo de Alessandro : 1527–1531 Agostino Bonfili : 1531–1533 Crisostomo de Alessandro : 1533–1538 (second time) Girolamo : 1538–1539 Ignazio II : 1539–1541 Girolamo II Scloccheto : 1541–1546 Lorenzo Zambelli : 1546–1549 Girolamo II Scloccheto : 1549–1551 (second time) Innocenzo Nicolai : 1551–1554 Girolamo III Calcini : 1554–1555 Isidoro Mantegazzi : 1555–1556 Ignazio III Vicani : 1556–1559 Angelo IV de Faggis : 1559–1564 Ignazio III Vicani : 1564–1565 (second time) Angelo IV de Faggis : 1565–1568 (second time) Bernardo II de Adamo : 1568–1570 Mattia Mattaleia : 1570–1572 Angelo IV de Faggis : 1572–1575 (third time) Girolamo IV Gersale : 1575–1577 Bernardo III Ferrajolo : 1577–1580 Desiderio II : 1580–1585 Bernardo III Ferrajolo : 1585–1587 (second time) Egidio II Sernicoli : 1587–1589 Andrea II : 1589–1590 Girolamo V Brugia : 1590–1595 Basilio II : 1595–1596 Vittorino de Manso : 1597–1598 Zaccaria II Tarasco : 1598–1599 Ambrogio Rastellini : 1599–1602 17th century Desiderio III : 1603–1604 Gregorio Casamata : 1605–1608 Paolo da Cosenza : 1608–1609 Onorato Scalisi : 1609–1614 Isidoro II Agresti : 1614–1617 Paolo II Scotti : 1617–1621 Bernardino Saivedra : 1621–1624 Simplicio II Caffarelli : 1625–1628 Paolo II Scotti : 1629–1630 (second time) Angelo V Grassi : 1631–1631 Paolo Camillo Casati : 1632–1634 Desiderio IV Petronio : 1635–1639 Severino Fusco : 1640–1645 Andrea III Arcioni : 1645 - 1647 Desiderio IV Petronio : 1648–1649 Domenico II Quesada : 1650–1653 Carlo de Mauro : 1654–1657 Angelo VI della Noce : 1657–1661 Anastasio Perrone : 1661–1665 Angelo VI della Noce : 1665–1669 (second time) Mauro Cesarini : 1669–1675 Severino II Pepe : 1675–1680 Andrea IV Deodati : 1680–1681 Sebastiano Biancardi : 1681–1687 Andrea IV Deodati : 1687–1692 (second time) Severino II Pepe : 1692–1697 (second time) Ippolito della Penna : 1697–1704 18th century Gregorio II Galisio : 1704–1717 Nicola III Ruggi : 1717–1722 Arcangelo Brancaccio : ?–1725 Sebastiano II Gadaleta : 1725–1731 Stefano IV de Stefano : 1731–1737 Ildefonso del Verme : 1737–1739 Sebastiano II Gadaleta : 1739–1745 (second time) Antonio II Capece : 1745–1751 Giovanni Maria Ragosa : 1751–1753 Marino II Migliarese : 1754–1760 Domenico III Favilla : 1760–1766 Aurelio Parisio : 1766–1772 Rinaldo Santomagno : 1772–1778 Domenico III Favilla : 1778–1780 (second time) Prospero de Rosa : 1781–1787 Tommaso II Capomazza : 1788–1793 Prospero de Rosa : 1793–1797 (second time) Marino III Lucarelli : 1797–1804 19th century Aurelio II Visconti : 1804–1816 Giuseppe del Balzo : 1817–1821 Luigi Bovio : 1821–1828 Giacomo Diez : 1828–1834 Celestino Gonzaga : 1834–1840 Matteo Morso : 1840–1840 Giuseppe II Frisari : 1841–1849 Michelangelo Celesia : 1850–1858 Simplicio III Pappalettere : 1858–1863 Carlo II de Vera : 1863–1871 Nicola IV d'Orgemont : 1872–1896 Giuseppe III Quandel : 1896–1897 Bonifacio Maria Krug : 1897–1909 20th century Gregorio IV Diamare : 1909–1945 In 1944, the abbey was destroyed a fourth time during the battle of Monte Cassino .
Ildefonso II Rea : 1945–1971 Martino Matronola : 1971–1983 Bernardo IV Fabio D'Onorio : 1983–2007 21st century Pietro VI Vittorelli : 2007–2013 Donato Ogliari : 2014–2023 Antonio Luca Fallica : 2023–present This page is based on this
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