| Date | Age | Event | Bishop | Title | Current Title |
| 1 Jul | 63.5 | Died | François-Fiacre de Grave † | Bishop of Valence, France |
| 6 Jul | | Born | Giuseppe-Maria Amorelli † | Sambuca | Bishop of Siracusa, Italy |
| 7 Jul | 75.1 | Died | Pedro Cortez y Larraz † | Bishop Emeritus of Tortosa, Spain |
| 13 Jul | 42.5 | Appointed | John Dunne † | Bishop of Ossory, Ireland |
| 15 Jul | 52.2 | Ordained Bishop | Antonio Puñuela Alonso † | Bishop of Zamora, Spain |
| 21 Jul | 45.1 | Installed | René des Moustiers de Mérinville † | Bishop of Dijon, France | Bishop Emeritus of Chambéry, France |
| 26 Jul | | Born | Jean-Jacques Fayet † | Mende | Bishop of Orléans, France |
| 54.9 | Died | Franciscus Salesius (Eustache) Federl, O.C.D. † | Vicar Apostolic Emeritus of Malabar, India | Vicar Apostolic |
| 29 Jul | | Born | Leopold Sedlnitzky Choltiz von Odrownocz † | Geppersdorf | Bishop Emeritus of Wrocław (Breslau), Poland |
| 30 Jul | | Born | Costanzo-Michele Fea † | Voghera | Bishop of Alba (Pompea), Italy |
| 1 Aug | 90.8 | Died | St. Alfonso Maria de’ Liguori, C.SS.R. † | Bishop Emeritus of Sant’Agata de’ Goti, Italy |
| 26 Aug | 66.4 | Ordained Bishop | Adalbert Radoszewski † | Titular Bishop of Hirina | Auxiliary Bishop of Kraków, Poland |
| 2 Sep | 70.3 | Died | Antonio Jorge y Galván † | Archbishop of Granada, Spain |
| 8 Sep | 74.3 | Died | Domenico Monti † | Archbishop of Urbino, Italy |
| 10 Sep | 56.2 | Appointed | Francisco Antonio Pablo Sieni Flannings, O.F.M. Cap. † | Auxiliary Bishop of San Cristobal de la Habana, Cuba | Auxiliary Bishop Emeritus of San Cristobal de la Habana, Cuba |
| 13 Sep | | Born | Cipriano Juárez y Berzosa † | Villaherreros | Bishop of Calahorra y La Calzada, Spain |
| 18 Sep | | Succeeded | Daniel Delany † | Bishop of Kildare and Leighlin, Ireland |
| Died | James Keefe † | Bishop of Kildare and Leighlin, Ireland |
| 22 Sep | | Born | Tommaso Pasquale Gizzi † | Ceccano | Cardinal, Secretary of the Secretariat of State |
| 23.9 | Ordained Priest | Wilhelm Arnold Günther, O. Praem. † | Priest of Order of the Canons Regular of Premontre; Norbertines | Auxiliary Bishop of Trier, Germany |
| 24.0 | Ordained Priest | Jan Jerzy Wilkxycki † | Priest of Chelmno (Culma, Kulm), Poland | Auxiliary Bishop |
| 23 Sep | 67.7 | Died | Georges-Louis Phélypeaux d’Herbault † | Archbishop of Bourges, France |
| 23.5 | Ordained Priest | Petrus Pustet † | Priest of Order of St. Augustine | Bishop of Eichstätt, Germany |
| 27 Sep | | Born | Joaquim Pereira Ferraz, O.S.B. † | Barcellos | Bishop of Leiria, Portugal |
| 28 Sep | 57.8 | Appointed | Manuel Abad Lasierra † | Bishop of Astorga, Spain | Bishop Emeritus |
| 57.4 | Appointed | Antonius Belglava † | Bishop of Trogir (Traù), Croatia |
| 64.9 | Appointed | Josephus Cosserich Teodosio † | Bishop of Korčula (Curzola, Cursola), Croatia |
| 23.1 | Ordained Priest | John Dubois, P.S.S. † | Priest of Society of Priests of St. Sulpice | Bishop of New York, New York, USA |
| 50.7 | Appointed | Kasimir Johann Baptist von Häffelin † | Titular Bishop of Chersonesus in Creta | Cardinal, Cardinal-Priest of S. Anastasia |
| 61.0 | Appointed | Vincenzo Ranuzzi † | Cardinal-Priest of S. Maria sopra Minerva | Cardinal, Bishop of Ancona e Numana, Italy |
| 47.9 | Confirmed | Max Polykarp von Törring-Jettenbach † | Bishop of Regensburg, Germany |
| 3 Oct | | Born | Johann Franz Drepper † | Mellrich | Bishop of Paderborn, Germany |
| 6 Oct | | Born | Francesco Pichi † | Ancona | Bishop of Tivoli, Italy |
| 7 Oct | 23.0 | Ordained Priest | Francesco Biordi † | Priest | Titular Bishop of the Titular See |
| 68.3 | Died | Karl Johann von Herberstein † | Bishop of Ljubljana, Slovenia |
| 35.1 | Selected | Anne-Louis-Henri de La Fare † | Bishop of Nancy, France | Cardinal, Archbishop of Sens (-Auxerre), France |
| 9 Oct | | Born | Clément Villecourt † | Lyon | Cardinal, Bishop Emeritus of La Rochelle (-Saintes), France |
| 14 Oct | 43.6 | Selected | François de Fontanges † | Archbishop of Bourges, France | Bishop of Autun, France |
| 17 Oct | 66.3 | Died | Franz Xaver von Adelmann von Adelmannsfelden † | Auxiliary Bishop of Augsburg, Germany |
| 21 Oct | 23.0 | Ordained Priest | Szymon Michal Józef Arnold Giedroyc † | Priest | Bishop of Žemaitija (Samogizia o Tels; Zmudz), Lithuania |
| 24 Oct | | Born | Claude-Marie-Paul Tharin † | Besançon | Bishop Emeritus of Strasbourg, France |
| 26 Oct | 40.8 | Selected | Jean-Baptiste Marie Scipion Ruffo (Roux) de Bonneval † | Bishop of Senez, France | Bishop Emeritus |
| 27 Oct | 55.8 | Selected | Angel Mariano Moscoso Pérez y Oblitas † | Bishop of Córdoba (Tucumán), Argentina |
| 28 Oct | 48.0 | Ordained Bishop | Max Polykarp von Törring-Jettenbach † | Bishop of Regensburg, Germany |
| 30 Oct | | Born | Louis-Jacques-Maurice de Bonald † | Millau | Cardinal, Archbishop of Lyon (-Vienne), France |
| 2 Nov | | Born | Jean-François Crozier † | Billom | Bishop of Rodez, France |
| 9 Nov | 50.3 | Appointed | Victorius (Franciscus Xaverius) Schweizer, O.C.D. † | Titular Bishop of Gabala |
| 11 Nov | | Died | Anthony Blake † | Archbishop of Armagh, Ireland |
| 50.9 | Ordained Bishop | Kasimir Johann Baptist von Häffelin † | Titular Bishop of Chersonesus in Creta | Cardinal, Cardinal-Priest of S. Anastasia |
| Succeeded | Richard O’Reilly † | Archbishop of Armagh, Ireland |
| 12 Nov | 47.0 | Selected | Joseph Christian Franz de Paula zu Hohenlohe-Waldenburg-Bartenstein † | Coadjutor Bishop of Wrocław (Breslau), Poland | Bishop |
| Born | Pierre-Flavien Turgeon † | Québec | Archbishop of Québec, Canada |
| 23 Nov | 50.5 | Resigned | Alexandre da Sagrada Familia Ferreira da Silva, O.F.M. † | Bishop of Angola e Congo, Angola | Bishop of Angra, Portugal |
| Dec | 69.2 | Died | Baltasar Yusta Navarro † | Bishop of Córdoba, Spain |
| 5 Dec | 45.8 | Appointed | Michel Leopold Brigido von Marenfels und Bresoviz † | Bishop of Ljubljana, Slovenia | Bishop of Spiš, Slovakia |
| 8 Dec | 24.1 | Ordained Priest | Giuseppe Maria Pezzella, O.S.A. † | Priest of Order of St. Augustine | Bishop of Calvi e Teano, Italy |
| 15 Dec | 54.0 | Appointed | Boetius Egan † | Archbishop of Tuam, Ireland |
| 59.2 | Died | Basilio Tomás Sancho Hernando (de Santas Justa y Rufina), Sch. P. † | Archbishop of Manila, Philippines |
| 17 Dec | 52.4 | Appointed | Luigi Amici † | Archbishop of Camerino, Italy |
| 51.1 | Appointed | Gregorius Bandi † | Titular Archbishop of Edessa in Osrhoëne |
| 54.7 | Appointed | Spiridione Berioli † | Archbishop of Urbino, Italy |
| 39.0 | Appointed | Henri de Chambre d’Urgons † | Auxiliary Bishop of Metz, France |
| 72.9 | Elevated to Cardinal | Raniero Finocchietti † | Cardinal, Cardinal-Deacon of S. Agata de’ Goti |
| 43.8 | Confirmed | François de Fontanges † | Archbishop of Bourges, France | Bishop of Autun, France |
| 35.3 | Confirmed | Anne-Louis-Henri de La Fare † | Bishop of Nancy, France | Cardinal, Archbishop of Sens (-Auxerre), France |
| 59.2 | Appointed | Basilio Tomás Sancho Hernando (de Santas Justa y Rufina), Sch. P. † | Archbishop of Granada, Spain | Archbishop of Manila, Philippines |
| 20 Dec | | Born | Giovanni Battista Ciofi † | Arezzo | Bishop of Chiusi-Pienza, Italy |
| 21 Dec | 51.1 | Ordained Bishop | Gregorius Bandi † | Titular Archbishop of Edessa in Osrhoëne |
| 22 Dec | 25.3 | Ordained Priest | Jan Chrzciciel Louis Masclet, O.M. † | Priest of Order of the Minims | Auxiliary Bishop of Minsk, Belarus |
| 22.7 | Ordained Priest | Ignatius Vincentius Matthy † | Priest of Warmia (Ermland), Poland | Bishop of Chelmno (Culma, Kulm), Poland |
| 23.2 | Ordained Priest | Joaquim da Souza Saraiva, C.M. † | Priest of Congregation of the Mission | Vicar Apostolic of Peking [Beijing], China |
| 27 Dec | | Born | Guy Ignatius Chabrat, P.S.S. † | Vigean, France | Coadjutor Bishop Emeritus of Bardstown, Kentucky, USA |
| 23.1 | Ordained Priest | Karl Klemens von Gruben † | Priest of Köln {Cologne}, Germany | Bishop of Hildesheim, Germany |
| 30 Dec | 54.7 | Ordained Bishop | Spiridione Berioli † | Archbishop of Urbino, Italy |