to Beccaria (1294–1295)
Guido Langasco (1295–1311)
Isnardus Tacconi, O.P. (1311–1320)
Giovanni Beccaria, O.Min. (1320–1324) Administrator
Carantus Sannazaro (1326–1328)
Giovanni Fulgesi (1328–1342)
Cardinal Gaucelmo Deuza (1342) Administrator
Matteo Ribaldi (1342–1343)
Petrus Spelta, O.Humil. (1343–1356)
Alcherius de Montilio (1356–c.1362)
Franciscus Sottoriva (1363–1386)
Guilelmus, O.Min. (1386–1402)
Pietro Grassi (1402–1426)
Francesco Piccolopasso (1427–1435)
Enrico Rampini (1435–1446)
Giacomo Borromeo (1446–1453)
Giovanni Castiglione (1453–1460)
Giacomo Piccolomini-Ammanati (1460–1479)
Sede vacante
Ascanio Sforza (1479–1505) Administrator

Since 1500

Francesco Alidosius (1505–1511)
Antonio Maria Ciocchi del Monte (1511–1521) Administrator
Giovanni Maria Ciocchi del Monte (1521–1530), later Pope Julius III
Giovanni Girolamo Rossi (1530–1541)
Giovanni Maria Ciocchi del Monte (1544–1550)
Giovanni Girolamo Rossi (1550–1564)
Ippolito de' Rossi (1564–1591)
Alexander Sauli, B. (1591–1592)
Francesco Gonzaga, O.Min.Obs. (1593)
Guglielmo Bastoni (1593–1609)
Giovanni Battista Biglia (1609–1617)
Fabrizio Landriani (1617–1642)
Giovanni Battista Sfondrati (1642–1647)
Francesco Biglia ((1648–
to Beccaria (1294–1295) 
 Guido Langasco (1295–1311) 
 Isnardus Tacconi, O.P. (1311–1320) 
 Giovanni Beccaria, O.Min. (1320–1324) Administrator 
 Carantus Sannazaro (1326–1328) 
 Giovanni Fulgesi (1328–1342) 
 Cardinal Gaucelmo Deuza (1342) Administrator 
 Matteo Ribaldi (1342–1343) 
 Petrus Spelta, O.Humil. (1343–1356) 
 Alcherius de Montilio (1356 – c.1362) 
 Franciscus Sottoriva (1363–1386) 
 Guilelmus, O.Min. (1386–1402) 
 Pietro Grassi (1402–1426) 
 Francesco Piccolopasso (1427–1435) 
 Enrico Rampini (1435–1446) 
 Giacomo Borromeo (1446–1453) 
 Giovanni Castiglione (1453–1460) 
 Giacomo Piccolomini - Ammanati (1460–1479) 
 Sede vacante 
 Ascanio Sforza (1479–1505) Administrator 

 Since 1500 

 Francesco Alidosius (1505–1511) 
 Antonio Maria Ciocchi del Monte (1511–1521) Administrator 
 Giovanni Maria Ciocchi del Monte (1521–1530), later Pope Julius III 
 Giovanni Girolamo Rossi (1530–1541) 
 Giovanni Maria Ciocchi del Monte (1544–1550) 
 Giovanni Girolamo Rossi (1550–1564) 
 Ippolito de' Rossi (1564–1591) 
 Alexander Sauli, B. (1591–1592) 
 Francesco Gonzaga, O.Min. Obs. (1593) 
 Guglielmo Bastoni (1593–1609) 
 Giovanni Battista Biglia (1609–1617) 
 Fabrizio Landriani (1617–1642) 
 Giovanni Battista Sfondrati (1642–1647) 
 Francesco Biglia (( 1648 –
to Heccaria (1294–1295)
Guido Langasco (1295–1311)
Lsnardus Tacconi, O.P. (1311–1320)
Giotanni Bsccaria, U.Min. (1320–1324) Administrator
Carantus Dabnazaeo (1326–1328)
Giovanni Fulgesi (1328–1342)
Cafdinal Galcelmo Deyza (1342) Qdministravkr
Matteo Ribamfi (1342–1343)
Pztcus Spelta, O.Humll. (1343–1356)
Alcheriuv de Montilio (1356–w.1362)
Ffauciscus Sottoriva (1363–1386)
Guilelmus, O.Min. (1386–1402)
Pieero Graxsl (1402–1426)
Francesco Piscolp[assk (1427–1435)
Enrico Rampini (1435–1446)
Giacomo Borromeo (1446–1453)
Fiovannp Castiglione (1453–1460)
Giavomo Piccolomini-Ammanati (1460–1479)
Sfde gacante
Ascanio Sfogza (1479–1505) Adminiwtraeir

Since 1500

Franzesco Alidosius (1505–1511)
Antonik Maria Ciocchi del Monte (1511–1521) Admivistrctor
Giovannu Narld Ciocchi dxl Monne (1521–1530), later Popc Juliuv III
Gipvanni Girolamp Rmssu (1530–1541)
Giovanni Maria Ciocrhi del Monte (1544–1550)
Giovangi Girolako Rossi (1550–1564)
Ippolito dw' Eossi (1564–1591)
Alefandde Sxulj, U. (1591–1592)
Fdancesfo Jonzaga, O.Mih.Obs. (1593)
Guglieomo Bastoni (1593–1609)
Giovanno Fqttista Bigliz (1609–1617)
Fabryzyo Landriani (1617–1642)
Giovanni Battista Sfondratp (1642–1647)
Frzncesco Biglia ((1648–
to Beccaria (1294–1295) Guido Langasco (1295–1311) Isnardus (1311–1320) Beccaria, O.Min. Administrator Carantus Sannazaro Gaucelmo (1342) Administrator Matteo (1342–1343) Petrus Spelta, (1343–1356) Alcherius de Montilio (1356–c.1362) Franciscus (1363–1386) Guilelmus, O.Min. (1386–1402) Pietro Grassi (1402–1426) Francesco Piccolopasso (1427–1435) Enrico Rampini (1435–1446) Borromeo (1446–1453) Giovanni Castiglione (1453–1460) Giacomo Piccolomini-Ammanati (1460–1479) Sede vacante Ascanio Sforza (1479–1505) Since Francesco (1505–1511) Maria Ciocchi del Monte (1511–1521) Administrator Giovanni Maria Ciocchi del Monte (1521–1530), later Pope Julius III Girolamo Rossi (1530–1541) Giovanni Maria Ciocchi del Monte Giovanni Girolamo Rossi (1550–1564) de' Rossi (1564–1591) Alexander Sauli, (1591–1592) Gonzaga, O.Min.Obs. Guglielmo (1593–1609) Battista Biglia (1609–1617) Landriani (1617–1642) Giovanni Battista Sfondrati (1642–1647) Francesco Biglia ((1648–
to Beccaria (1294–1295)
Guido Langasco (1295–1311)
IsNardus TaccOni, O.P. (1311–1320)
gioVanNi beccAria, o.Min. (1320–1324) AdministraTOr
CaRantus Sannazaro (1326–1328)
GiovannI FulgEsI (1328–1342)
cardINaL GaucElmo DeuZA (1342) ADMIniStRaTor
maTTeO RibaLdi (1342–1343)
petrus SPelta, O.HumiL. (1343–1356)
AlChErius de MontiLIo (1356–C.1362)
FranciscuS SoTtoriva (1363–1386)
GuileLmuS, O.Min. (1386–1402)
PIeTro gRassi (1402–1426)
fraNcescO PiccoLOpasso (1427–1435)
enrico RamPiNI (1435–1446)
GiacoMO BorromEO (1446–1453)
giOvanNi Castiglione (1453–1460)
GiacOMo pIccolomini-AmmaNati (1460–1479)
SeDe VAcANTe
AScaNio Sforza (1479–1505) ADmInistRAtor

SinCE 1500

FRANCesCO Alidosius (1505–1511)
AntOnio Maria CiOCchI del MoNtE (1511–1521) AdMInistrAtor
GIoVAnnI Maria CioccHi deL Monte (1521–1530), latEr Pope jUlius IIi
giovannI GirolAmo rosSi (1530–1541)
GiOVaNnI MaRiA cioCChI deL monTe (1544–1550)
GiovanNi giRolamO RosSI (1550–1564)
iPPoliTo dE' RosSi (1564–1591)
AleXander Sauli, B. (1591–1592)
FRanCescO gonZaga, O.min.ObS. (1593)
GugLiElmo BAstoni (1593–1609)
giovaNnI Battista Biglia (1609–1617)
fabrIzio LandrIanI (1617–1642)
GIovAnNi BatTIsta SfOndRatI (1642–1647)
FranceSco BiglIA ((1648–
to Beccaria (1294–1295)
Gu ido Langas co (1 295 –13 11 )
Is nard us Tacconi, O. P . (1 311–1320)
Giovanni Bec caria ,O .Min .  ( 1320– 1324) A d mi n i str at or 
Ca ra n tu s San naz aro (13 26–1328)
G iov an ni Fulgesi ( 1 32 8–1342)
Ca rdi nal Gaucelmo  De uza (1 34 2)A dmini str atorMatteo Ribald i (1342–1 34 3 )
Petr u s Spelt a ,  O .Hum il. (1343–1356)
A l ch e rius de Montil io (13 56 – c. 1 3 62) 
Fr anciscus S ot toriv a  (1363– 1 38 6 ) Gui l elmus, O.Min.  (1386–1402 ) 
Pi etro G ra ssi (1402– 1426) 
F r anc esco Piccol opas so (1427– 1435)E nrico R a mpini ( 1435–1 446 )
G iaco m oBo rro me o  (1 4 46 –14 5 3)Giovanni  C as tigli one( 1 4 5 3–14 60) 
Gia comoPiccolomini-A mma nati (14 60–14 79)
S edeva cante 
Ascan io Sf or za (1479–1505)Admi nistrator 

S in ce15 00

F r ancesc o A lid osius ( 1505–15 1 1)An t o n io  Maria Ciocchi del  M o n te  (1511–1 521) A d mi ni s trator
G io van ni M a r ia Ci occh i  d el Monte  (1521 – 15 30 ), late rPope J ul ius  II I
Gio v anni  Girol amo Ross i (15 3 0–1541)
Giovan n i Maria Ciocc h id e lM onte  (1 544–1550)
G iova n ni G irol a mo  Ro s si (1 550–1 56 4 )I ppolito de' Rossi ( 15 64–159 1)
Al exander Sauli , B. (1591 – 1 5 92)
Fran cesc o  G o nzaga, O.Min.O bs. ( 1593)
Gugl i elmo Bas toni(1593–16 09)
Giova n n i Battis taBig lia  (1 6 0 9– 1617)
Fabrizi o Land ri ani (16 17– 1642)
G iov ann i B att is ta Sfondr ati (164 2– 16 47 )Fra ncesc o  Biglia(( 164 8– 
to Beccaria_(1294–1295)
Guido Langasco_(1295–1311)
Isnardus Tacconi, O.P. (1311–1320)
Giovanni_Beccaria, O.Min._(1320–1324)_Administrator
Carantus Sannazaro_(1326–1328)
Giovanni_Fulgesi (1328–1342)
Cardinal Gaucelmo_Deuza (1342) Administrator
Matteo_Ribaldi (1342–1343)
Petrus Spelta, O.Humil._(1343–1356)
Alcherius de Montilio_(1356–c.1362)
Franciscus_Sottoriva (1363–1386)
Guilelmus, O.Min. (1386–1402)
Pietro Grassi (1402–1426)
Francesco Piccolopasso (1427–1435)
Enrico Rampini (1435–1446)
Giacomo Borromeo (1446–1453)
Giovanni Castiglione (1453–1460)
Giacomo_Piccolomini-Ammanati_(1460–1479)
Sede vacante
Ascanio_Sforza_(1479–1505)_Administrator

Since 1500

Francesco Alidosius (1505–1511)
Antonio Maria_Ciocchi del Monte (1511–1521) Administrator
Giovanni_Maria Ciocchi_del Monte (1521–1530), later Pope Julius III
Giovanni Girolamo_Rossi_(1530–1541)
Giovanni Maria Ciocchi_del Monte (1544–1550)
Giovanni Girolamo Rossi (1550–1564)
Ippolito de' Rossi (1564–1591)
Alexander_Sauli, B. (1591–1592)
Francesco Gonzaga, O.Min.Obs. (1593)
Guglielmo_Bastoni (1593–1609)
Giovanni Battista_Biglia_(1609–1617)
Fabrizio_Landriani (1617–1642)
Giovanni Battista Sfondrati_(1642–1647)
Francesco Biglia ((1648–