| Date | Age | Event | Bishop | Title | Current Title |
| 1 Sep | | Born | José María Salvador y Barrera † | Marchena | Archbishop of Valencia, Spain |
| 2 Sep | 81.2 | Died | Anton Alois Buchmayer † | Bishop of Sankt Pölten, Austria |
| 5 Sep | 53.0 | Appointed | Antonio Benedetto Antonucci † | Archbishop (Personal Title) of Ancona e Numana, Italy | Cardinal, Bishop |
| 48.2 | Confirmed | Vincenzo Bisceglia † | Bishop of Termoli, Italy |
| 50.9 | Resigned | Pietro Bottazzi † | Apostolic Administrator of Termoli, Italy | Bishop of Larino, Italy |
| 36.1 | Appointed | Gaetano Brinciotti † | Auxiliary Bishop of Civitavecchia, Italy | Bishop of Bagnoregio (Bagnorea), Italy |
| 36.1 | Appointed | Gaetano Brinciotti † | Titular Bishop of Leuce | Bishop of Bagnoregio (Bagnorea), Italy |
| 66.1 | Confirmed | Juan Nepomuceno Cascallana y Ordóñez † | Bishop of Málaga, Spain |
| 41.4 | Confirmed | Alessandro Csajàghy † | Bishop of Csanád, Hungary |
| 44.4 | Confirmed | Manoel Joaquim da Silveira † | Bishop of São Luís do Maranhão, Brazil | Archbishop of São Salvador da Bahia, Brazil |
| 63.1 | Confirmed | Emerico Farkas † | Bishop of Székesfehérvár (Albareale), Hungary |
| 75.8 | Appointed | Francisco Xavier de Garaycoa Llaguno † | Archbishop of Quito, Ecuador |
| 47.9 | Confirmed | Miguel García Cuesta † | Cardinal, Archbishop of Santiago de Compostela, Spain |
| 72.0 | Confirmed | Antolín García Lozano † | Bishop of Salamanca, Spain |
| 53.2 | Confirmed | Johann Valerian Jirsík † | Bishop of České Budĕjovice {Budweis}, Czech Republic |
| 54.7 | Appointed | Domenico Lucciardi † | Archbishop (Personal Title) of Senigallia, Italy | Cardinal, Bishop |
| 51.0 | Confirmed | Jean-Pierre Mabile † | Bishop of Saint-Claude, France | Bishop of Versailles, France |
| 50.0 | Appointed | Mattei Augusto Mengacci † | Bishop of Civita Castellana, Orte e Gallese, Italy |
| 56.1 | Confirmed | Pierre-Louis Parisis † | Bishop of Arras, France | Bishop of Arras (-Boulogne-Saint-Omer), France |
| 55.8 | Confirmed | Martino Piña y Giménez † | Bishop of Plasencia, Spain | Bishop-Elect |
| 62.1 | Resigned | Giusto Recanati, O.F.M. Cap. † | Apostolic Administrator of Senigallia, Italy | Cardinal, Cardinal-Priest of Santi XII Apostoli |
| 71.4 | Confirmed | Salvador José Reyes y García de Lara † | Archbishop of Granada, Spain |
| 43.7 | Confirmed | Ágoston Roskoványi † | Bishop of Vác, Hungary | Bishop of Nitra, Slovakia |
| 59.7 | Confirmed | Miguel Salvá y Munar † | Bishop of Mallorca y Ibiza, Spain |
| 66.5 | Appointed | Jose Ignatius Sánchez Navarro † | Bishop of Linares o Nueva León, Nuevo León, México |
| 45.3 | Appointed | Amadio Zangari † | Bishop of Macerata e Tolentino, Italy |
| 68.4 | Confirmed | Pedro José Zarandia y Endara † | Bishop of Huesca, Spain |
| 7 Sep | 36.1 | Ordained Bishop | Gaetano Brinciotti † | Titular Bishop of Leuce | Bishop of Bagnoregio (Bagnorea), Italy |
| 45.5 | Ordained Bishop | François-Xavier Danicourt, C.M. † | Titular Bishop of Antiphellus | Vicar Apostolic of Chekiang {Ce-Kiam}, China |
| 51.4 | Ordained Bishop | Anselmo Llorente y La Fuente † | Bishop of San José de Costa Rica |
| 24.1 | Ordained Priest | Ignazio Łobos † | Priest | Auxiliary Bishop of Przemyśl, Poland |
| 8 Sep | | Born | John Aloysius Maguire † | Glasgow | Archbishop of Glasgow, Scotland, Great Britain |
| Born | Antonio Maurović † | Zagreb | Bishop of Senj (-Modruš), Croatia |
| 10 Sep | 24.5 | Ordained Priest | Pierre-Antoine-Paul Goux † | Priest | Bishop of Versailles, France |
| 11 Sep | | Appointed | James Eustace Dupeyron, S.J. † | Coadjutor Vicar Apostolic of Giamaica o Jamaica, Jamaica, Antilles | Vicar Apostolic |
| 14 Sep | | Born | Adolph Manier † | Foug | Bishop of Belley, France |
| 18 Sep | 76.0 | Died | Mariano Bianco † | Archbishop Emeritus of Amalfi, Italy |
| Born | Francesco Moretti † | Selciaia | Bishop Emeritus of Terni e Narni, Italy |
| 20 Sep | 22.2 | Ordained Priest | Filippo Allegro † | Priest | Bishop of Albenga, Italy |
| 22.5 | Ordained Priest | Giuseppe Apollonio † | Priest | Bishop of Treviso, Italy |
| 23.8 | Ordained Priest | Joseph-Christian-Ernest Bourret, C.O. † | Priest of Confederation of Oratorians of St. Philip Neri | Cardinal, Bishop of Rodez (-Vabres), France |
| 23.0 | Ordained Priest | James Vincent Cleary † | Priest | Archbishop of Kingston, Ontario, Canada |
| 24.5 | Ordained Priest | Paolo Schinosi † | Priest | Titular Archbishop of Marcianopolis |
| 21 Sep | 40.1 | Appointed | Colin Francis MacKinnon † | Bishop of Arichat, Nova Scotia, Canada | Bishop Emeritus |
| 28 Sep | 37.5 | Ordained Bishop | Giuseppe Matar † | Archbishop of Alep [Beroea, Halab] (Maronite), Syria |
| 29 Sep | 79.0 | Died | Paul-Thérèse-David d’Astros † | Cardinal, Archbishop of Toulouse (-Narbonne), France |
| 62.9 | Succeeded | Jean-Marie Mioland † | Archbishop of Toulouse (-Narbonne), France |
| 2 Oct | | Born | Célestin-Henri Joussard, O.M.I. † | Saint-Michel-de-Saint-Geoirs, France | Coadjutor Vicar Apostolic Emeritus of Grouard, Alberta, Canada |
| 3 Oct | 40.6 | Appointed | Joseph (José María Benito) Serra y Juliá, O.S.B. † | Apostolic Administrator of Perth, Australia | Coadjutor Bishop Emeritus |
| 4 Oct | 72.8 | Died | William Fraser (Frazer) † | Bishop of Arichat, Nova Scotia, Canada |
| 5 Oct | 48.3 | Ordained Bishop | Vincenzo Bisceglia † | Bishop of Termoli, Italy |
| 23.1 | Ordained Priest | Joseph-Frédéric Saivet † | Priest | Bishop of Perpignan-Elne, France |
| 9 Oct | 54.8 | Installed | Francis Patrick Kenrick † | Archbishop of Baltimore, Maryland, USA |
| 13 Oct | 81.8 | Died | Henricus den Dubbelden † | Vicar Apostolic of ’s Hertogenbosch (Bois-le-Duc), Netherlands |
| 57.1 | Succeeded | Johannes Zwijsen (Zwysen) † | Vicar Apostolic of ’s Hertogenbosch (Bois-le-Duc), Netherlands | Bishop of ’s Hertogenbosch (Bois-le-Duc), Netherlands |
| 15 Oct | 57.8 | Selected | Jean-Jacques-Marie-Antoine Guerrin † | Bishop of Langres, France |
| 50.3 | Selected | Jean-Paul-François-Marie-Félix Lyonnet † | Bishop of Saint-Flour, France | Archbishop of Albi, France |
| 49.6 | Selected | Frédéric-Gabriel-Marie-François de Marguerye † | Bishop of Autun, France | Bishop Emeritus of Autun (-Châlon-sur-Saône-Mâcon), France |
| 16 Oct | 74.8 | Died | Ignatius Petrus Jarweh (Jaroue) † | Patriarch of Antiochia {Antioch} (Syrian), Lebanon |
| 18 Oct | 48.2 | Resigned | Vincenzo Maria Marolda, C.SS.R. † | Bishop of Trapani, Italy | Bishop of Capaccio e Vallo della Lucania, Italy |
| 19 Oct | 53.3 | Ordained Bishop | Johann Valerian Jirsík † | Bishop of České Budĕjovice {Budweis}, Czech Republic |
| 55.5 | Ordained Bishop | Jean Sarrabeyrouse (Sarebayrouze) † | Titular Bishop of Etalonia (Hetalonia) | Auxiliary Bishop of Ajaccio, France |
| 24 Oct | | Born | Lucien-Emile Mossard, M.E.P. † | Dampierre-sur-le-Doubs, France | Vicar Apostolic of Western Cochin {Cocincina Occidentale}, Viet Nam |
| 26 Oct | 41.6 | Ordained Bishop | Alessandro Csajàghy † | Bishop of Csanád, Hungary |
| 27 Oct | | Born | François-Auguste Labeuche † | Hyémondans | Bishop of Belley, France |
| 30 Oct | 42.1 | Succeeded | Giuseppe Maria Alberti † | Bishop of Syros (e Milos), Greece |
| 80.8 | Died | Luigi Maria Blancis da Ciriè, O.F.M. † | Bishop of Syros (e Milos), Greece |
| 50.8 | Selected | Manuel Bento Rodrigues da Silva † | Archbishop (Personal Title) of Coimbra, Portugal | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal |
| 1 Nov | 63.2 | Ordained Bishop | Emerico Farkas † | Bishop of Székesfehérvár (Albareale), Hungary |
| 2 Nov | 22.7 | Ordained Priest | Josef Jan Hais † | Priest of České Budĕjovice {Budweis}, Czech Republic | Bishop of Hradec Králové, Czech Republic |
| 3 Nov | 46.7 | Resigned | Giuseppe Novella, O.F.M. † | Coadjutor Vicar Apostolic of Houkouang, China | Coadjutor Vicar Apostolic Emeritus |
| 4 Nov | | Born | Carlos de Jesús Mejía y Laguna, C.M. † | Jalapa | Bishop Emeritus of Tehuantepec, Oaxaca, México |
| 10 Nov | 65.5 | Died | Cornelius Ludovicus van Wijckerslooth van Schalkwijk (Wykerslooth) † | Titular Bishop of Curium |
| 11 Nov | 51.1 | Ordained Bishop | Jean-Pierre Mabile † | Bishop of Saint-Claude, France | Bishop of Versailles, France |
| 12 Nov | 17.6 | Professed | Girolamo Maria Gotti, O.C.D. † | Member of Order of Discalced Carmelites | Cardinal, Prefect Emeritus of the Congregation for Propagation of the Faith |
| 16 Nov | 72.2 | Ordained Bishop | Antolín García Lozano † | Bishop of Salamanca, Spain |
| 50.2 | Ordained Bishop | Mattei Augusto Mengacci † | Bishop of Civita Castellana, Orte e Gallese, Italy |
| 19 Nov | 71.9 | Died | Giovanni Battista Parretti † | Archbishop of Pisa, Italy |
| 21 Nov | | Born | Désiré Felicien François Joseph Mercier † | Braine-l'Alleud | Cardinal, Archbishop of Mechelen, Belgium |
| 22 Nov | 83.8 | Died | Antonio Posada Rubín de Celis † | Patriarch of West Indies, Spain |
| 23 Nov | 24.7 | Ordained Priest | Louis-Joseph-Jean-Baptiste-Léon Gouzot † | Priest of Périgueux, France | Archbishop of Auch, France |
| Born | Neil McNeil † | Hillsborough | Archbishop of Toronto, Ontario, Canada |
| 28.3 | Ordained Bishop | Alexander-Antonine Taché, O.M.I. † | Titular Bishop of Arathia | Archbishop of Saint-Boniface, Manitoba, Canada |
| 25 Nov | 56.0 | Died | Martino Piña y Giménez † | Bishop-Elect of Plasencia, Spain |
| 29 Nov | | Born | Georg Schmid von Grüneck † | Surrhein | Bishop of Chur, Switzerland |
| 30 Nov | 44.0 | Ordained Bishop | Ágoston Roskoványi † | Bishop of Vác, Hungary | Bishop of Nitra, Slovakia |
| 2 Dec | 56.7 | Selected | Ignaz Feigerle † | Bishop of Sankt Pölten, Austria |
| 60.1 | Installed | Joseph William Hendren, O.F.M. † | Bishop of Nottingham, England, Great Britain | Bishop Emeritus |
| 6 Dec | | Born | Josef Altenweisel † | Niederdorf | Bishop of Brixen {Bressanone}, Italy |
| 11 Dec | 78.7 | Died | Francesco-Maria Coppola † | Bishop of Oppido Mamertina, Italy |
| 14 Dec | 27.5 | Ordained Priest | Johann Baptist Zwerger † | Priest of Trento, Italy | Bishop of Seckau, Austria |
| 15 Dec | | Born | Felix von Hartmann † | Münster | Cardinal, Archbishop of Köln {Cologne}, Germany |
| Born | Eduard Baron von der Ropp † | Liksna | Archbishop of Mohilev, Belarus |
| 20 Dec | 23.2 | Ordained Priest | Carlo Bonajuti (Bonaiuti) † | Priest | Bishop of Pesaro, Italy |
| 22.9 | Ordained Priest | Luigi Domenico Cenci, T.C. † | Priest of Capuchin Tertiary Religious of Our Lady of Sorrows | Titular Bishop of Apollonia |
| 25.6 | Ordained Priest | Pierre-Paul de Cuttoli † | Priest of Ajaccio, France | Bishop |
| 23.6 | Ordained Priest | Angelo Di Pietro † | Priest of Tivoli, Italy | Cardinal, Datary of the Apostolic Datary |
| 24.8 | Ordained Priest | Jacques-Théodore Lamarche † | Priest | Bishop of Quimper [Cornouailles](-Léon), France |
| 23.8 | Ordained Priest | Giustino Puletti † | Priest | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 23.9 | Ordained Priest | Marie-Ludovic Roche † | Priest | Bishop of Gap, France |
| 26.8 | Ordained Priest | John Baptist (Jean-Baptiste) Salpointe † | Priest of Clermont, France | Archbishop Emeritus of Santa Fe, New Mexico, USA |
| 23.9 | Ordained Priest | Pierre-Jean-Joseph Soubiranne † | Priest | Bishop Emeritus of Belley, France |
| 25.6 | Ordained Priest | John Vertue (Virtue) † | Priest | Bishop of Portsmouth, England, Great Britain |
| 22 Dec | 71.4 | Died | Bernardo Antonino Squarcina, O.P. † | Bishop of Adria, Italy |
| 62.0 | Died | Michele Todde Valeri, Sch. P. † | Bishop of Ogliastra, Italy |
| 24 Dec | 31.7 | Ordained Priest | José María Mora y Daza † | Priest | Bishop of Tlaxcala, México |
| 26 Dec | 70.9 | Died | Tomás Díez de Bedoya, O.F.M. Cap. † | Auxiliary Bishop of Santiago de Compostela, Spain |