List of the bishops of Tortona
The following people were bishops of Tortona ( Italy ):
- Saint Martian I (? –6 March 120)
- Saint Aribert (120-145)
- Saint Ammonio (approx. 150–171)
- Saint Terenziano (? –186)
- Saint Costanzo (187-237)
- Saint Lorenz I (approx. 240 – approx. 265)
- Saint Anastasius (about 272 – about 275)
- Saint Marcellinus (277–?)
- Saint Giuliano
- Saint Meliodoro I (305–?)
- Saint Innocent (318–342 or 355)
- John I.
- Saint Esuperanzio (around 360–381)
- Eustasius or Teodulo (385)
- Saint Martian II. (Approx. 404 – approx. 420)
- Saint Quinziano or Quintino † (431 – about 466)
- Saint Marcello (472–?)
- Albonio (504)
- John II (around 557)
- Sisto (approx. 579)
- Procolo Peno (602 – about 649)
- Meliodoro II (649)
- Beato (660-662)
- Lorenz II. (662–?)
- Audacio (679–?)
- Ottavio (701 – approx. 711)
- Benedict I (711 – about 724)
- Thomas (727 – about 744)
- Giacomo (744 – about 753)
- Giuseppe (755–769?)
- Flaviano (769–?)
- Gerolamo (786 – about 793)
- Desiderius (793 – about 799)
- Robert (799 – about 808)
- Valerio (808 – about 828)
- John III (828 – about 838)
- Rofred (838 – about 847)
- Teodolf (848–877 or 878)
- John IV (878-?)
- Glarardo (890 – about 897)
- Ildegino (898-?)
- Gerebaldo (901–?)
- Benedict II (913-929?)
- Andrea Rada (926 or 930–?)
- Giselprando (944-962)
- John V (965–968)
- Ottone (969-?)
- Guibert (973-983)
- Eribert (984-998)
- Agirio (1004–?)
- Pietro I (1014-1077)
- Otto I. (1077-1083)
- Guido (1084-1098)
- Lambard (1105–?)
- Pietro II (1111–1134)
- Guglielmo (1134–1144)
- Oberto (1153–1179)
- Ugo (1180-1183)
- Gandolf (around 1184–?)
- Otto II. (1196-1201)
- Obizzo (1202-1212)
- Pietro Busetto (1220-1255)
- Melchiorre Busetto (1255–1284)
- Sedis vacancy (1284–1288)
- Giacomo Calcinari (1288–?)
- Tiberio della Torre (1319-1325) (also Bishop of Brescia)
- Princivalle Fieschi (1325-1348)
- Giacomo Visconti (1348-1363)
- Giovanni dei marchesi di Ceva (1364-1393)
- Pietro Giorgi (1394–1414) (also Bishop of Novara)
- Enrico Rampini (1414–1435) (also Bishop of Pavia)
- Gerardo Landriani (1435-1436)
- Giovanni Barbavara (1439-1460)
- Michele Marliani (1461–1475) (afterwards Bishop of Piacenza)
- Fabrizio Marliani (1475–1476) (afterwards Bishop of Piacenza)
- Giacomo Botta (1476-1496)
- Gian Domenico de Zazi (1496-1528)
- Cardinal Uberto Gambara (1528-1548)
- Cesare Gambara (1548–1591)
- Maffeo Gambara (1592-1612)
- Cosimo Dossena, B. (1612-1620)
- Paolo Arese, CR (1620-1644)
- Francesco Fossati OSBOliv. (1644-1653)
- Carlo Settala (1653–1682)
- Carlo Francesco Ceva (1683-1700)
- Giulio Resta (1701-1743)
- Giuseppe Ludovico Andujar, OP (1743–1783)
- Carlo Maurizio Peyretti (1783-1793)
- Sedis vacancy (1793–1796)
- Pio Bonifacio Fassati (1796–1803)
- Sedis vacancy (1803-1817)
- Carlo Francesco Carnevale (1818–1831)
- Giovanni Negri (1833–1874)
- Vincenzo Capelli (1874–1890)
- Igino Bandi (1890-1914)
- Simone Pietro Grassi (1914-1934)
- Egisto Domenico Melchiori (1934–1963)
- Francesco Rossi (1963-1969)
- Giovanni Canestri (1971–1975)
- Luigi Bongianino (1975-1996)
- Martino Canessa (1996-2014)
- Vittorio Francesco Viola OFM (since 2014)