| Date | Age | Event | Bishop | Title | Current Title |
| 3 Jul | | Born | Domenico Fanelli † | | Bishop of Diano-Teggiano, Italy |
| 37.5 | Incardinated | Carlo Domenico Ferrari † | Priest of Brescia, Italy | Bishop |
| 5 Jul | 72.3 | Died | Diego Gregorio Cadello † | Cardinal, Archbishop of Cagliari, Italy |
| 8 Jul | 61.1 | Died | Francesco Amoroso † | Archbishop of Lanciano, Italy |
| 10 Jul | 52.7 | Selected | István Fischer de Nagy † | Archbishop of Eger, Hungary |
| 53.0 | Selected | Péter Klobusiczky † | Bishop of Satu Mare {Szatmár}, Romania | Archbishop of Kalocsa, Hungary |
| 12 Jul | 34.1 | Ordained Deacon | Ernst von Schwarzenberg † | Deacon | Bishop of Győr (Raab), Hungary |
| 13 Jul | 82.3 | Died | Henry Benedict Mary Clement Stuart of York † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 15 Jul | 63.6 | Selected | Anton Kautschitz † | Bishop of Ljubljana, Slovenia |
| 17 Jul | 64.1 | Died | Pietro Leopardi † | Titular Bishop of Akka |
| 18 Jul | 53.9 | Appointed | Romoaldo Braschi-Onesti † | Cardinal, Archpriest of the Basilica di San Pietro in Vaticano {Saint Peter Basilica} |
| 19 Jul | 85.8 | Died | Étienne-François-Xavier des Michels de Champorcin † | Bishop of Toul, France |
| 22.6 | Ordained Deacon | Josef Ondřej Lindauer † | Deacon of Praha {Prague}, Czechia | Bishop of České Budĕjovice {Budweis}, Czechia |
| 34.1 | Ordained Priest | Ernst von Schwarzenberg † | Priest | Bishop of Győr (Raab), Hungary |
| 24 Jul | 65.8 | Died | [François Nicolas] † | Bishop Emeritus of [Meurthe (Constitutional), France] |
| 26 Jul | 24.2 | Ordained Priest | Gaetano Antonio Tigani † | Priest | Bishop of Anglona-Tursi, Italy |
| 27 Jul | | Born | Pantaleón Montserrat y Navarro † | | Bishop of Barcelona, Spain |
| 2 Aug | 42.4 | Ordained Bishop | Francisco Ramón Valentín de Casaus y Torres, O.P. † | Titular Bishop of Rhosus | Archbishop of Guatemala |
| Born | Joseph-Martial Mouly, C.M. † | | Vicar Apostolic of Northern Chi-Li {Ce-Li Settentrionale} o Pe-Kin, China |
| 3 Aug | 76.7 | Appointed | Leonardo Antonelli † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 52.3 | Confirmed | Luigi Antonio Arrighi de Casanova † | Bishop of Acqui, Italy |
| 40.9 | Confirmed | Maurice-Jean-Madeleine de Broglie † | Bishop of Gent {Ghent, Gand}, Belgium |
| 85.2 | Appointed | Francesco Carafa della Spina di Traetto † | Cardinal-Priest of San Lorenzo in Damaso | Cardinal, Prefect of the Congregation of Bishops and Regulars |
| 59.1 | Appointed | Antonio Dugnani † | Cardinal-Bishop of Albano | Cardinal, Prefect of the Apostolic Signatura |
| 46.1 | Confirmed | Pierre Dupont de Poursat † | Bishop of Coutances, France |
| 57.3 | Appointed | Etienne-André-François de Paule de Fallot de Béaupré de Beaumont † | Bishop of Piacenza, Italy | Bishop Emeritus of Vaison, France |
| 51.7 | Appointed | Giovanni Battista Lambruschini † | Bishop of Orvieto, Italy |
| 49.5 | Appointed | Agostino Olivieri, O.M.D. † | Titular Bishop of Arethusa |
| 66.7 | Confirmed | Josef-Franz (Joseph François Xavier) de Preux † | Bishop of Sion {Sitten}, Switzerland |
| 71.7 | Confirmed | Claude-Louis Rousseau † | Bishop of Orléans, France |
| 56.7 | Appointed | Louis-Siffrein-Joseph de Salamon † | Titular Bishop of Orthosias in Caria | Bishop of Saint-Flour, France |
| 74.7 | Appointed | Martin Takáts † | Auxiliary Bishop of Kalocsa, Hungary |
| 74.7 | Appointed | Martin Takáts † | Titular Bishop of Belline | Auxiliary Bishop of Kalocsa, Hungary |
| 66.0 | Died | Piotr Aleksander Samson Toczyłowski † | Auxiliary Bishop Emeritus of Vilnius, Lithuania | Auxiliary Bishop |
| 81.8 | Appointed | Luigi Valenti Gonzaga † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Librarian of the Vatican Library |
| 59.6 | Appointed | Gerardo José Andrés Vázquez Parga, O. Cist. † | Bishop of Salamanca, Spain |
| 60.8 | Confirmed | Joaquim do Rosário Vieira, O.F.M. Ref. † | Bishop of Beja, Portugal |
| 69.5 | Appointed | Ippolito Antonio Vincenti Mareri † | Cardinal, Cardinal-Bishop of Sabina |
| 8 Aug | | Born | Ignazio Maria Selitti † | | Bishop Emeritus of Melfi e Rapolla, Italy |
| 9 Aug | 56.7 | Ordained Bishop | Louis-Siffrein-Joseph de Salamon † | Titular Bishop of Orthosias in Caria | Bishop of Saint-Flour, France |
| 10 Aug | 71.1 | Died | Claude Leopoldo de Bexon † | Bishop Emeritus of Namur {Namen}, Belgium |
| 11 Aug | | Born | Pietro Giannelli † | | Cardinal, President of the Roman Curia - Other |
| 12 Aug | 83.0 | Died | Bernardino Honorati † | Cardinal, Bishop of Senigallia, Italy |
| 16 Aug | | Born | Bartolomeo Legat † | | Bishop of Trieste e Capodistria (Trst i Koper), Italy |
| 22.7 | Ordained Priest | Josef Ondřej Lindauer † | Priest of Praha {Prague}, Czechia | Bishop of České Budĕjovice {Budweis}, Czechia |
| Born | Giuseppe Rosati † | | Bishop of Luni, Sarzana e Brugnato, Italy |
| 23 Aug | 66.8 | Died | Martin Görgey † | Auxiliary Bishop of Esztergom, Hungary |
| 24 Aug | 43.5 | Resigned | Marino Carafa di Belvedere † | Cardinal-Deacon of San Nicola in Carcere | |
| 78.6 | Appointed | Paolo Patricio Fava Ghisleri † | Archbishop of Ferrara, Italy |
| 60.7 | Confirmed | Nicolň Saverio Gamboni † | Patriarch of Venezia {Venice}, Italy |
| 51.7 | Elevated to Cardinal | Francesco Guidobono Cavalchini † | In Pectore | Cardinal, Priest |
| 63.7 | Confirmed | Anton Kautschitz † | Bishop of Ljubljana, Slovenia |
| 85.8 | Died | Jan Kanty Leńczowski † | Auxiliary Bishop of Kraków, Poland |
| 53.7 | Appointed | Federico Maria Molin † | Bishop of Adria, Italy |
| 66.6 | Ordained Bishop | Fargal O’Reilly † | Bishop of Kilmore, Ireland |
| 75.4 | Appointed | Giuseppe Gregorio (Josip Grgur) Scotti † | Archbishop of Zadar (Zara), Croatia |
| 57.5 | Appointed | Johann Nepomuk von Dankesreither † | Auxiliary Bishop of Wien {Vienna}, Austria | Bishop of Sankt Pölten, Austria |
| 57.5 | Appointed | Johann Nepomuk von Dankesreither † | Titular Bishop of Pella | Bishop of Sankt Pölten, Austria |
| 27 Aug | 81.9 | Died | Guido Calcagnini † | Cardinal, Bishop of Osimo e Cingoli, Italy |
| 3 Sep | 52.7 | Selected | Narciso Coll y Prat † | Archbishop of Caracas, Santiago de Venezuela | Bishop of Palencia, Spain |
| 5 Sep | 58.3 | Died | [Éléonore-Marie Desbois de Rochefort] † | Bishop Emeritus of [Somme (Constitutional), France] |
| 6 Sep | 49.6 | Ordained Bishop | Agostino Olivieri, O.M.D. † | Titular Bishop of Arethusa |
| 7 Sep | 19.5 | Entered | Robert St-Léger, S.J. † | Member of Society of Jesus | Vicar Apostolic Emeritus of Bengal, India |
| 18 Sep | 71.1 | Appointed | Carlo Bellisomi † | Cardinal-Priest of Santa Prassede | Cardinal, Bishop of Cesena, Italy |
| 33.0 | Appointed | Domenico Bellusci † | Titular Bishop of Sinope |
| 69.5 | Appointed | Stefano Bonsignore † | Bishop of Faenza, Italy |
| 60.7 | Appointed | Giacomo Boschi † | Bishop of Carpi, Italy |
| 47.7 | Appointed | Andrea Bratti † | Bishop of Forli, Italy |
| 55.9 | Appointed | Paolo Lamberto D’Allčgre † | Bishop of Pavia, Italy |
| 51.6 | Appointed | Francesco Scipio Dondi Orologio † | Bishop of Padova {Padua}, Italy |
| 52.9 | Confirmed | István Fischer de Nagy † | Archbishop of Eger, Hungary |
| 70.4 | Appointed | József Király † | Auxiliary Bishop of Esztergom, Hungary | Bishop of Pécs, Hungary |
| 70.4 | Appointed | József Király † | Titular Bishop of Thaumacus | Bishop of Pécs, Hungary |
| 65.9 | Appointed | Innocenzo Maria Lirutti, O.S.B. † | Bishop of Verona, Italy |
| 46.1 | Confirmed | Ferdinando Mattei † | Bishop of Malta |
| 63.4 | Confirmed | Francesco Milesi † | Bishop of Vigevano, Italy | Patriarch of Venezia {Venice}, Italy |
| 49.4 | Appointed | Gabrio Maria Nava † | Bishop of Brescia, Italy |
| 59.8 | Confirmed | Giuseppe Stanislao Paradiso † | Bishop of Ampurias e Civita, Italy | Bishop of Ales e Terralba, Italy |
| 60.8 | Confirmed | Giuseppe Maria Peruzzi † | Bishop of Chioggia, Italy | Bishop of Vicenza, Italy |
| 48.9 | Appointed | Baldassare Rasponti † | Archbishop of Udine, Italy |
| 61.8 | Appointed | Gualfardo Ridolfi † | Bishop of Rimini, Italy |
| 40.5 | Appointed | Tommaso Ronna † | Bishop of Crema, Italy |
| Born | Giuseppe Targioni † | | Bishop of Volterra, Italy |
| 54.7 | Appointed | Silvestro Todaro, O.F.M. Conv. † | Bishop of Lipari, Italy | Bishop of Patti, Italy |
| 71.8 | Confirmed | Filippo Trigona † | Bishop of Siracusa, Italy |
| 19 Sep | | Born | Luigi Agazio, O.F.M. Ref. † | | Bishop of Trivento, Italy |
| 25.6 | Ordained Priest | Francesco Maria Barzellotti † | Priest | Bishop of Sovana e Pitigliano, Italy |
| 22.6 | Ordained Priest | Lorenzo Giovanni Battista Biale † | Priest | Bishop of Ventimiglia, Italy |
| Born | Gaetano Rodilossi † | | Bishop of Alatri, Italy |
| 21 Sep | 24.4 | Ordained Priest | Moritz-Fabian Roten † | Priest of Sion {Sitten}, Switzerland | Bishop |
| 24 Sep | | Born | Ignacy Hołowiński † | | Archbishop of Mohilev, Belarus |
| 27 Sep | | Born | John Thomas Mullock, O.F.M. Ref. † | | Bishop of Saint John’s, Newfoundland, Canada |
| 2 Oct | 51.4 | Appointed | Jean-Louis Florens, M.E.P. † | Coadjutor Vicar Apostolic of Se-Ciuen (Setchoan, Szechwan, Sichuan), China |
| 51.4 | Appointed | Jean-Louis Florens, M.E.P. † | Titular Bishop of Zela | Coadjutor Vicar Apostolic of Se-Ciuen (Setchoan, Szechwan, Sichuan), China |
| 4 Oct | 78.7 | Ordained Bishop | Paolo Patricio Fava Ghisleri † | Archbishop of Ferrara, Italy |
| 6 Oct | 71.9 | Installed | Claude-Louis Rousseau † | Bishop of Orléans, France |
| 11 Oct | 50.5 | Ordained Bishop | Peter Bernardine Collingridge, O.F.M. Rec. † | Titular Bishop of Thespiae | Vicar Apostolic of Western District, England, Great Britain |
| 13 Oct | | Born | Bonaventura Attanasio, C.Ss.R. † | | Bishop Emeritus of Lipari, Italy |
| 16.0 | Professed | Thomas Lawrence Burgess † | Member of Order of Saint Benedict | Bishop of Clifton, England, Great Britain |
| 14 Oct | | Born | Pedro Lucas Asensio Poves † | | Bishop of Jaca, Spain |
| 21 Oct | | Born | Andrés Rosales y Muńoz † | | Bishop of Almería, Spain |
| 30 Oct | 70.5 | Selected | József Király † | Bishop of Pécs, Hungary |
| 1 Nov | 56.0 | Ordained Bishop | Paolo Lamberto D’Allčgre † | Bishop of Pavia, Italy |
| 63.6 | Ordained Bishop | Francesco Milesi † | Bishop of Vigevano, Italy | Patriarch of Venezia {Venice}, Italy |
| 49.5 | Ordained Bishop | Gabrio Maria Nava † | Bishop of Brescia, Italy |
| 3 Nov | | Born | Francesco Brigante Colonna † | | Bishop of Recanati e Loreto, Italy |
| 22.0 | Ordained Deacon | Karl Ambrose Ferdinand von Habsburg † | Deacon | Archbishop of Esztergom, Hungary |
| 4 Nov | 22.0 | Ordained Priest | Karl Ambrose Ferdinand von Habsburg † | Priest | Archbishop of Esztergom, Hungary |
| 8 Nov | 66.9 | Ordained Bishop | Josef-Franz (Joseph François Xavier) de Preux † | Bishop of Sion {Sitten}, Switzerland |
| 57.7 | Ordained Bishop | Johann Nepomuk von Dankesreither † | Titular Bishop of Pella | Bishop of Sankt Pölten, Austria |
| 12 Nov | 87.5 | Died | Giovanni Battista de Pergen † | Bishop of Mantova, Italy |
| Born | Johann Valentin von Reißmann † | | Bishop of Würzburg, Germany |
| 15 Nov | 67.1 | Died | Pedro Díaz Valdés † | Bishop of Barcelona, Spain |
| 19 Nov | 16.0 | Professed | Joseph William (Francis) Hendren, O.F.M. Rec. † | Member of Order of Friars Minor Recollect | Bishop Emeritus of Nottingham, England, Great Britain |
| 22 Nov | 70.6 | Ordained Bishop | József Király † | Titular Bishop of Thaumacus | Bishop of Pécs, Hungary |
| 59.9 | Ordained Bishop | Gerardo José Andrés Vázquez Parga, O. Cist. † | Bishop of Salamanca, Spain |
| 27 Nov | | Appointed | Blaise de Saint-Matthieu, O.C.D. † | Vicar Apostolic of Baghdad, Iraq |
| 28 Nov | 66.8 | Died | Louis-Apolinaire de La Tour du Pin-Montauban † | Bishop of Troyes, France |
| 29 Nov | 54.4 | Died | Joaquim Maria Mascarenhas Castello Branco † | Bishop Emeritus of Angola e Congo |
| 30 Nov | 60.1 | Died | Antonio Vila y Campos † | Bishop of Albarracin, Spain |
| Dec | 61.8 | Died | Giovanni Gaetano del Muscio, Sch. P. † | Archbishop of Manfredonia, Italy |
| 2 Dec | 49.7 | Appointed | Giuseppe Morozzo Della Rocca † | Secretary of the Congregation of Bishops and Regulars | Cardinal, Bishop of Novara, Italy |
| 3 Dec | | Born | Fernando Ramírez y Vázquez † | | Bishop of Badajoz, Spain |
| 6 Dec | | Born | Jean-Jacques Nanquette † | | Bishop of Le Mans, France |
| Born | Ágoston Roskoványi † | | Bishop of Nitra, Slovakia |
| 9 Dec | 33.2 | Ordained Bishop | Domenico Bellusci † | Titular Bishop of Sinope |
| 10 Dec | 66.3 | Installed | Ignacy Jan Zygmunt von Raczyński † | Archbishop of Gniezno, Poland | Archbishop Emeritus |
| 13 Dec | 52.6 | Ordained Bishop | Luigi Antonio Arrighi de Casanova † | Bishop of Acqui, Italy |
| Born | Giuseppe Pecci, S.J. † | | Cardinal, Prefect Emeritus of the Congregation for Studies |
| 15 Dec | 55.4 | Died | Giovanni Coppola † | Titular Archbishop of Myra |
| 18 Dec | | Born | Filippo de Simone † | | Bishop of Nicotera e Tropea, Italy |
| 19 Dec | 34.7 | Ordained Priest | Frédéric-Auguste-François-Joseph-Ghislain de Cuvelier † | Priest of Namur {Namen}, Belgium |
| 36.6 | Ordained Priest | Charles de Douhet d’Auzers † | Priest | Bishop of Nevers, France |
| 22.8 | Ordained Priest | Vincenzo Andrea Grande † | Priest | Archbishop of Otranto, Italy |
| 24.1 | Ordained Priest | Carlos Laborda Clau † | Priest | Bishop of Palencia, Spain |
| 25.4 | Ordained Priest | Pietro Naselli, C.O. † | Priest of Confederation of Oratorians of St. Philip Neri | Bishop Emeritus of Piazza Armerina, Italy |
| 22.2 | Ordained Deacon | Alojzije Marija Pini † | Deacon | Bishop of Split-Makarska (Spalato-Macarska), Croatia |
| 36.6 | Ordained Priest | Dominique-Marie Savy † | Priest | Bishop Emeritus of Aire, France |
| 21 Dec | 72.1 | Ordained Bishop | Filippo Trigona † | Bishop of Siracusa, Italy |
| 22 Dec | 46.0 | Ordained Bishop | Hipólito Antonio Sánchez Rangel de Fayas, O.F.M. Obs. † | Bishop of Maynas, Peru | Bishop of Lugo, Spain |
| 23 Dec | | Born | St. Antonio María Claret y Clará, C.M.F. † | | Archbishop Emeritus of Santiago de Cuba |
| 27 Dec | 69.8 | Ordained Bishop | Stefano Bonsignore † | Bishop of Faenza, Italy |
| 48.0 | Ordained Bishop | Andrea Bratti † | Bishop of Forli, Italy |
| 23.0 | Ordained Deacon | Michał Tomasz Wincenty de Korczyński † | Deacon | Bishop of Przemyśl, Poland |
| 66.2 | Ordained Bishop | Innocenzo Maria Lirutti, O.S.B. † | Bishop of Verona, Italy |
| 49.2 | Ordained Bishop | Baldassare Rasponti † | Archbishop of Udine, Italy |
| 62.1 | Ordained Bishop | Gualfardo Ridolfi † | Bishop of Rimini, Italy |
| 40.8 | Ordained Bishop | Tommaso Ronna † | Bishop of Crema, Italy |
| 29 Dec | | Born | Domenico Maria Gelmini † | | Bishop of Lodi, Italy |
| Born | Anđeo Kraljević, O.F.M. Obs. † | | Vicar Apostolic of Herzegovina |
| 30 Dec | | Born | Geremia Nicola Antonio Cosenza, O.F.M. Obs. † | | Bishop of Foggia, Italy |