| Date | Age | Event | Bishop | Title | Current Title |
| 1 Sep | | Born | Gil Alamán y García Castrillo † | México | Former Bishop-Elect of Sonora, México |
| 4 Sep | | Ordained Bishop | Bonaventura Zabberoni, O.F.M. Conv. † | Titular Bishop of Helenopolis in Bithynia |
| 6 Sep | 68.6 | Selected | Abbon-Pierre-François Bonnel de la Brageresse † | Bishop of Viviers, France | Bishop Emeritus |
| 8 Sep | | Born | Arsenio Andrade y Landázuri † | Uyumbicho | Bishop of Bolivar, Ecuador |
| 9 Sep | 51.0 | Selected | Niccola Berlingeri † | Bishop of Nicastro, Italy |
| 56.8 | Selected | Adeodato Gomez Cardosa † | Bishop of Isernia, Italy |
| 16.3 | Professed | Guglielmo Massaia, O.F.M. Cap. † | Member of Order of Friars Minor Capuchin | Cardinal, Vicar Apostolic Emeritus of Galla, Ethiopia |
| 12 Sep | 73.2 | Died | Juan García Benito † | Archbishop Emeritus of Santiago de Compostela, Spain |
| 16 Sep | | Died | Caspar Delenda † | Bishop of Santorini {Thira}, Greece |
| 17 Sep | 65.2 | Died | Santiago Creus y Martí † | Archbishop of Tarragona, Spain |
| 18 Sep | | Born | Augustin Joseph Louage, C.S.C. † | Tourcoing, France | Bishop of Dacca, Bangladesh |
| 51.6 | Ordained Bishop | Manuel Martínez Ferro, O. de M. † | Bishop of Málaga, Spain |
| 64.7 | Ordained Bishop | Antonio Pérez de Hirias † | Bishop of Mallorca, Spain |
| 23 Sep | 45.5 | Appointed | Giuseppe-Maria Molajoni, C.P. † | Bishop of Nicopoli, Bulgaria | Bishop Emeritus |
| 24 Sep | 26.2 | Ordained Priest | John Barry † | Priest of Charleston, South Carolina, USA | Bishop of Savannah, Georgia, USA |
| 23.6 | Ordained Priest | St. Etienne-Théodore Cuénot, M.E.P. † | Priest of La Société des Missions Etrangères | Vicar Apostolic of Eastern Cochin {Cocincina Orientale}, Viet Nam |
| 22.9 | Ordained Priest | Pasquale de Lucia † | Priest | Bishop of Gerace, Italy |
| 22.2 | Ordained Deacon | Vincenzo Maria Marolda, C.SS.R. † | Deacon of Congregation of the Most Holy Redeemer | Bishop of Capaccio e Vallo della Lucania, Italy |
| 30.6 | Ordained Priest | Patrick Phelan, P.S.S. † | Priest of Society of Priests of Saint Sulpice | Bishop of Kingston, Ontario, Canada |
| 25 Sep | | Born | Raffaele Mezzetti † | Lucan | Bishop Emeritus of Livorno, Italy |
| 45.5 | Ordained Bishop | Giuseppe-Maria Molajoni, C.P. † | Bishop of Nicopoli, Bulgaria | Bishop Emeritus |
| 27 Sep | 56.7 | Ordained Bishop | Kyrylo Syrotynskyj † | Bishop of Pińsk-Turow (Ukrainian), Belarus |
| 30 Sep | 66.5 | Died | Luis Gregorio López Castillo † | Auxiliary Bishop of Toledo, Spain |
| 40.9 | Appointed | John Ryan † | Coadjutor Bishop of Limerick, Ireland | Bishop |
| 40.9 | Appointed | John Ryan † | Titular Bishop of Myrina | Bishop of Limerick, Ireland |
| 1 Oct | | Born | Domenico Gaspare Lancia di Brolo, O.S.B. † | Palermo | Archbishop of Monreale, Italy |
| 3 Oct | 80.9 | Died | Claude Simon † | Bishop of Grenoble, France |
| 4 Oct | | Born | Michael von Rampf † | Munich | Bishop of Passau, Germany |
| 6 Oct | | Born | Antonio Polin † | Caerano di San Marco | Bishop of Adria, Italy |
| 12 Oct | 79.8 | Died | Nicolas Malci † | Bishop of Lezhë {Lesh, Alessio}, Albania |
| 14 Oct | | Born | Jean-Marcel Touvier, C.M. † | Desnes, France | Vicar Apostolic of Abyssinia, Ethiopia |
| 16 Oct | | Born | Aloysius Traversi † | Bibbiena | Bishop of Colle di Val d’Elsa, Italy |
| 22 Oct | | Born | Prospero Curti † | San Polo d'Enza | Bishop of Guastalla, Italy |
| 23 Oct | 25.3 | Ordained Deacon | Ioan Alexi † | Deacon | Bishop of Gherla, Armenopoli, Szamos-Ujvár (Romanian), Romania |
| 26 Oct | | Born | Edmond Alfred Dardel, O.F.M. Cap. † | Aix-les-Bains, France | Vicar Apostolic of Seychelles |
| 42.1 | Selected | Francisco Javier García Casarrubios y Melgar, O. Cist. † | Bishop of Tui, Spain |
| 27 Oct | 38.1 | Selected | Andrea Rispoli, C.SS.R. † | Bishop of Squillace, Italy |
| 29 Oct | 69.1 | Died | Juan Francisco Castañiza Larrea y Gonzalez de Agüero † | Bishop of Durango, México |
| 30 Oct | 25.3 | Ordained Priest | Ioan Alexi † | Priest | Bishop of Gherla, Armenopoli, Szamos-Ujvár (Romanian), Romania |
| 56.6 | Ordained Bishop | Dionisio Castaño y Bermúdez † | Bishop of Gerona, Spain |
| 27.1 | Ordained Priest | Toma Jedrlinić † | Priest | Bishop of Dubrovnik (Ragusa), Croatia |
| 31 Oct | | Born | Charles-Martial Allemand-Lavigerie † | Bayonne | Cardinal, Archbishop of Alger, Algeria |
| 1 Nov | 43.2 | Ordained Bishop | Benedict Joseph Fenwick, S.J. † | Bishop of Boston, Massachusetts, USA |
| 2 Nov | 66.0 | Died | Giuseppe Crispino Mazzotti † | Bishop of Cervia, Italy |
| 6 Nov | 54.9 | Ordained Bishop | Luigi Maria Blancis da Ciriè, O.F.M. † | Titular Bishop of Canatha | Bishop of Syros (e Milos), Greece |
| 9 Nov | 54.1 | Installed | Johann Friedrich Oesterreicher † | Bishop of Eichstätt, Germany |
| 10 Nov | 55.1 | Selected | Friedrich Klemens von Ledebur † | Bishop of Paderborn, Germany |
| 13 Nov | | Ordained Bishop | Maximos Givaid (Jouwed) † | Titular Patriarch of Alexandria {Alessandria} (Coptic), Egypt |
| 20 Nov | 42.7 | Selected | Alexis Billiet † | Bishop of Saint-Jean-de-Maurienne, France | Cardinal, Archbishop of Chambéry, France |
| 59.6 | Selected | Antoine Martinet † | Bishop of Tarentaise, France | Archbishop of Chambéry, France |
| 85.2 | Died | Fortunado Pinto † | Archbishop of Salerno (-Acerno), Italy |
| 22 Nov | 55.7 | Selected | Camillo Alleva † | Archbishop of Salerno (-Acerno), Italy |
| 24 Nov | 70.1 | Died | Giovanni Battista Lambruschini † | Bishop of Orvieto, Italy |
| 27 Nov | 23.6 | Ordained Priest | Sebastião Pinto do Rêgo † | Priest | Bishop of São Paulo, Brazil |
| 30 Nov | | Born | Thomas Timothy O’Mahony † | Aberle, Ireland | Auxiliary Bishop of Toronto, Ontario, Canada |
| 3 Dec | 43.3 | Installed | Benedict Joseph Fenwick, S.J. † | Bishop of Boston, Massachusetts, USA |
| 4 Dec | | Born | Géraud Bray, C.M. † | Siran, France | Vicar Apostolic of Northern Kiangsi {Kiam-Si Settentrionale}, China |
| Born | Charles-Pierre-François Cotton † | Saint-Siméon-de-Bressieux | Bishop of Valence, France |
| Born | José Moreno y Mazón † | Málaga | Archbishop of Granada, Spain |
| 72.9 | Succeeded | Bernard-Claude Panet † | Archbishop of Québec, Canada |
| 62.8 | Died | Joseph-Octave Plessis † | Archbishop of Québec, Canada |
| Born | Giovanni Maria Sardi † | Rocchetta Tanaro | Bishop of Pinerolo, Italy |
| 8 Dec | 24.8 | Professed | José Aranguren, O.A.R. † | Member of Order of Augustinian Recollects | Archbishop of Manila, Philippines |
| 10 Dec | 66.2 | Resigned | Nicola Caldora † | Bishop of Venosa, Italy | Bishop Emeritus |
| 67.1 | Died | Luigi Ercolani † | Cardinal, Cardinal-Priest of San Marco |
| 11 Dec | 64.0 | Died | Manuel Nicolau de Almeida, O.C.D. † | Bishop of Angra, Portugal |
| 71.6 | Died | Flórián Kovács † | Bishop of Satu Mare {Szatmár}, Romania |
| 41.1 | Ordained Bishop | John Ryan † | Titular Bishop of Myrina | Bishop of Limerick, Ireland |
| 14 Dec | 66.7 | Died | Carlos da Cunha e Menezes † | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal |
| Born | Camillo Sorgente † | Salerno | Archbishop of Cosenza, Italy |
| 16 Dec | | Born | Celestino (Raffaele) Zini, Sch. P. † | Florence | Archbishop of Siena, Italy |
| 17 Dec | 23.0 | Ordained Priest | Armand-Françios-Marie de Charbonnel, O.F.M. Cap. † | Priest | Bishop Emeritus of Toronto, Ontario, Canada |
| 55.4 | Confirmed | Kaspar Max Droste zu Vischering † | Bishop of Münster, Germany |
| 24.0 | Ordained Priest | Félix-Antoine-Philibert Dupanloup † | Priest | Bishop of Orléans, France |
| Born | Mariano Palermo † | Maletto | Bishop of Piazza Armerina, Italy |
| 24.0 | Ordained Priest | Carmelo Pascucci † | Priest | Titular Bishop of Ptolemais in Phoenicia |
| 26.2 | Ordained Priest | William Turner † | Priest | Bishop of Salford, England, Great Britain |
| 18 Dec | 19.1 | Professed | Mariano Falcinelli Antoniacci, O.S.B. † | Member of Order of Saint Benedict | Cardinal, Official of the Roman Curia - Other |
| 19 Dec | 55.8 | Confirmed | Camillo Alleva † | Archbishop of Salerno (-Acerno), Italy |
| 67.2 | Appointed | Giovanni Baptist Maria Angelini † | Titular Bishop of Megara |
| 51.3 | Confirmed | Niccola Berlingeri † | Bishop of Nicastro, Italy |
| 42.8 | Confirmed | Alexis Billiet † | Bishop of Saint-Jean-de-Maurienne, France | Cardinal, Archbishop of Chambéry, France |
| 68.9 | Confirmed | Abbon-Pierre-François Bonnel de la Brageresse † | Bishop of Viviers, France | Bishop Emeritus |
| 51.9 | Appointed | Luigi Canestrari, O.F.M. † | Bishop of Montalto (delle Marche), Italy |
| 64.0 | Confirmed | Fernando Cano Almirante, O.F.M. † | Bishop of Islas Canarias {Canary Islands}, Spain |
| 57.0 | Confirmed | Adeodato Gomez Cardosa † | Bishop of Isernia, Italy |
| 44.9 | Appointed | Tomás Díez de Bedoya, O.F.M. Cap. † | Auxiliary Bishop of Santiago de Compostela, Spain |
| 44.9 | Appointed | Tomás Díez de Bedoya, O.F.M. Cap. † | Titular Bishop of Cydonia (Agia, Canea) | Auxiliary Bishop of Santiago de Compostela, Spain |
| 62.4 | Confirmed | José Joaquim (José Antonio) de Oliveira Carvalho (da Imaculada Conceição Amarante), O.F.M. † | Archbishop of Cranganore (Angamala), India |
| 57.8 | Appointed | Józef Marcelin Dzięcielski † | Bishop of Lublin, Poland |
| 65.1 | Appointed | Antonio Domenico Gamberini † | Bishop of Orvieto, Italy | Cardinal, Bishop Emeritus |
| 42.2 | Confirmed | Francisco Javier García Casarrubios y Melgar, O. Cist. † | Bishop of Tui, Spain |
| 71.7 | Appointed | Mikołaj Jan Manugiewicz † | Bishop of Sejny o Sejna o Augustów, Poland |
| 59.7 | Confirmed | Antoine Martinet † | Bishop of Tarentaise, France | Archbishop of Chambéry, France |
| 62.1 | Appointed | Johann Heinrich Milz † | Auxiliary Bishop of Trier, Germany |
| 62.1 | Appointed | Johann Heinrich Milz † | Titular Bishop of Sarepta | Auxiliary Bishop of Trier, Germany |
| 54.0 | Appointed | Giovanni Muzi † | Archbishop (Personal Title) of Città di Castello, Italy | Bishop |
| Born | Luigi Marcello Pellegrini † | Scorrano | Prelate of Altamura ed Acquaviva delle Fonti, Italy |
| 66.0 | Confirmed | Jan Antoni de Potoczki † | Bishop of Przemyśl, Poland |
| Born | Francisco de la Concepción Ramírez y González, O.F.M. † | León | Vicar Apostolic of Tamaulipas, México |
| 53.3 | Confirmed | Jacinto Rodríguez Rico † | Bishop of Teruel, Spain | Bishop of Cuenca, Spain |
| 65.1 | Confirmed | Jacques-Louis-David de Séguin des Hons † | Bishop of Troyes, France |
| 46.4 | Appointed | Giuseppe II Maria Traversi di Pereta † | Bishop of Massa Marittima, Italy |
| Born | Alfonso Maria Vespignani † | Imola | Bishop of Cesena, Italy |
| 20 Dec | 82.9 | Died | Tymoteusz Pawel von Gorzeński † | Archbishop of Gniezno e Poznań, Poland |
| 21 Dec | 51.3 | Ordained Bishop | Niccola Berlingeri † | Bishop of Nicastro, Italy |
| 51.9 | Ordained Bishop | Luigi Canestrari, O.F.M. † | Bishop of Montalto (delle Marche), Italy |
| 46.4 | Ordained Bishop | Giuseppe II Maria Traversi di Pereta † | Bishop of Massa Marittima, Italy |
| 24 Dec | | Born | Noël-Mathieu-Victor-Marie Gaussail † | Beaupuy | Bishop of Perpignan-Elne, France |
| 26 Dec | 26.1 | Ordained Priest | Antonio Ligi-Bussi, O.F.M. Conv. † | Priest of Order of Friars Minor Conventual | Titular Archbishop of Iconium |