| Date | Age | Event | Bishop | Title | Current Title |
| 5 Sep | 64.4 | Installed | Antoine de La Grange de Pons † | Bishop of Moulins, France |
| 6 Sep | 80.4 | Died | Bartolomé María de las Heras Navarro † | Archbishop of Lima, Peru |
| 7 Sep | 28.9 | Ordained Priest | Taddeo Łubieński † | Priest | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 10 Sep | | Born | James O’Connor † | Cobh, Ireland | Bishop of Omaha, Nebraska, USA |
| 13 Sep | | Born | Francisco de Paula Suárez Peredo y Bezares † | Puebla | Bishop of Veracruz-Jalapa, México |
| 17 Sep | | Born | Vincenzo Anivitti † | Roma | Auxiliary Bishop of Sabina (-Farfa), Italy |
| 20 Sep | 22.5 | Ordained Priest | Gregorio De Luca † | Priest | Archbishop of Conza e Campagna, Italy |
| 24.2 | Ordained Priest | Joseph-Armand Gignoux † | Priest of Beauvais, France | Bishop of Beauvais (-Noyon-Senlis), France |
| 22.5 | Ordained Priest | Giovanni Domenico Francesco Mensini † | Priest | Bishop of Grosseto, Italy |
| 22.6 | Ordained Priest | Giuseppe Palermo, O.S.A. † | Priest of Order of St. Augustine | Titular Bishop of Porphyreon |
| 21 Sep | 26.2 | Ordained Priest | Ireneus Frederic Baraga † | Priest | Bishop of Sault Sainte Marie and Marquette, Michigan, USA |
| Born | Christophe-Etienne Bonjean, O.M.I. † | Riom, France | Archbishop of Colombo, Sri Lanka |
| 27 Sep | | Born | Louis Bel, C.M. † | Castelfranc, France | Vicar Apostolic of Abyssinia, Ethiopia |
| 69.6 | Died | Antoine-Eustache d’Osmond † | Bishop of Nancy, France |
| Born | Johannes Henricus Schaap, C.SS.R. † | Amsterdam, Netherlands | Vicar Apostolic of Dutch Guyana-Suriname, Suriname, Antilles |
| 28 Sep | 63.1 | Elected | Annibale Francesco Clemente Melchiore Girolamo Nicola della Genga † | Pope (Roma {Rome}, Italy) |
| Born | Aniceto Ferrante, C.O. † | Atina | Bishop Emeritus of Gallipoli, Italy |
| 41.7 | Ordained Priest | Tommaso Riario Sforza † | Cardinal, Priest of the Roman Curia - Other |
| 29 Sep | 25.0 | Ordained Priest | Michele Viale-Prelà † | Priest | Cardinal, Archbishop of Bologna, Italy |
| 1 Oct | 64.2 | Installed | Charles-Alexandre de Richery † | Bishop of Fréjus, France | Archbishop of Aix (-Arles-Embrun), France |
| Born | Alessandro de Risio, C.SS.R. † | Scerni | Archbishop Emeritus of Santa Severina, Italy |
| Born | Odon Thibaudier † | Millery | Archbishop of Cambrai, France |
| 5 Oct | 63.1 | Installed | Annibale Francesco Clemente Melchiore Girolamo Nicola della Genga † | Pope (Roma {Rome}, Italy) |
| 65.6 | Ordained Priest | Agostino Rivarola † | Cardinal, Priest of Roma {Rome}, Italy |
| 9 Oct | | Born | Antonín Ludvík Frind † | Lipové | Bishop of Litoměřice, Czech Republic |
| 10 Oct | 54.2 | Selected | Giuseppe de Belánsky † | Bishop of Banská Bystrica, Slovakia |
| 65.9 | Selected | Jozef Bélik † | Bishop of Spiš, Slovakia |
| 67.6 | Selected | Antón Mákay † | Bishop of Veszprém, Hungary |
| 12 Oct | 70.9 | Died | Giovanni Martino Bernardoni Baccolo † | Titular Bishop of Famagusta |
| 23.1 | Ordained Deacon | Michele Fogarasy † | Deacon | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
| 23.1 | Ordained Deacon | Ferenc Szenczy † | Deacon | Bishop of Szombathely, Hungary |
| 14 Oct | 67.1 | Selected | François-François Besson † | Bishop of Metz, France |
| 73.2 | Selected | Jacques-Alexis Jacquemin † | Bishop of Saint-Dié, France | Bishop Emeritus |
| 64.2 | Selected | Jean-Marie-Dominique de Poulpiquet de Brescanvel † | Bishop of Quimper, France |
| 23.1 | Ordained Priest | Ferenc Szenczy † | Priest | Bishop of Szombathely, Hungary |
| 36.0 | Selected | Claude-Marie-Paul Tharin † | Bishop of Strasbourg, France | Bishop Emeritus |
| 16 Oct | 71.2 | Selected | Christoph Emanuel (Krzysztof Emanuel) von Schimonski-Schimoni † | Bishop of Wrocław (Breslau), Poland |
| 21 Oct | 89.9 | Died | Carlo Scribani Rossi † | Bishop of Piacenza, Italy |
| 22 Oct | 68.8 | Died | José Higinio Durán y Martel, O. de M. † | Bishop of Panamá |
| Born | Arnold Ipolyi-Stummer † | Disznós | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 24 Oct | | Born | Giovanni Battista Laparelli Pitti † | Cortona | Bishop of Cortona, Italy |
| 25.2 | Ordained Priest | Ignatius Aloysius Reynolds † | Priest of Baltimore, Maryland, USA | Bishop of Charleston, South Carolina, USA |
| 26 Oct | | Born | Joseph-Maxence Péronne † | Laon | Bishop of Beauvais (-Noyon-Senlis), France |
| 27 Oct | | Born | Grégoire II Youssef † | Rosette, Egypt | Patriarch of Antiochia {Antioch} (Melkite Greek), Syria |
| 28 Oct | 23.1 | Ordained Priest | Michele Fogarasy † | Priest | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
| 29 Oct | 23.1 | Professed | St. Jerónimo Hermosilla, O.P. † | Member of Order of Friars Preachers | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 1 Nov | | Born | Eusebio Magner, O.F.M. Cap. † | Montesanto | Bishop of Orvieto, Italy |
| 2 Nov | | Born | Gesualdo Nicola Loschirico, O.F.M. Cap. † | Cardinale | Archbishop of Acerenza e Matera, Italy |
| 5 Nov | | Born | Pedro José Sánchez Carrascosa y Carrión, C.O. † | Manzanares | Bishop Emeritus of Avila, Spain |
| 9 Nov | 47.4 | Ordained Bishop | Giacomo Monico † | Bishop of Ceneda, Italy | Cardinal, Patriarch of Venezia {Venice}, Italy |
| 10 Nov | 41.9 | Selected | Franz Xavier (Franciszek Ksawery) Luschin (Luszin) † | Bishop of Trento, Italy | Archbishop of Gorizia e Gradisca, Italy |
| Born | William George McCloskey † | Brooklyn, NY | Bishop of Louisville, Kentucky, USA |
| 67.4 | Selected | Joseph Chrysostomus Pauer † | Bishop of Sankt Pölten, Austria |
| 11 Nov | | Born | Manuel Mercader y Arroyo † | Barcelona | Bishop of Menorca, Spain |
| 79.5 | Retired | Irénée-Yves Desolle (Dessole) † | Archbishop of Chambéry, France | Archbishop Emeritus |
| 78.9 | Resigned | St. Vincenzo Maria Strambi, C.P. † | Bishop of Macerata e Tolentino, Italy | Bishop Emeritus |
| 14 Nov | 27.5 | Professed | Clément Bonnand, M.E.P. † | Priest of La Société des Missions Etrangères | Vicar Apostolic of Pondicherry, India |
| 17 Nov | 68.5 | Appointed | Filippo Ambrosi † | Bishop of Montalto (delle Marche), Italy |
| 61.0 | Confirmed | Gilbert-Paul Aragonès d’Orcet † | Bishop of Langres, France |
| 45.7 | Confirmed | Michele Basilio Clari (Clary), O.S.B.I. † | Archbishop of Bari (-Canosa), Italy |
| 65.8 | Confirmed | Nicola Coppola, C.O. † | Archbishop (Personal Title) of Nola, Italy | Bishop |
| 50.2 | Confirmed | Gustave-Maximilien-Juste de Croÿ-Solre † | Cardinal, Archbishop of Rouen, France |
| 67.6 | Confirmed | Pietro Maria d’Agostino † | Bishop of Agrigento (Girgenti), Italy |
| 64.0 | Confirmed | Francesco Saverio Durini, O.S.B. † | Bishop of Aversa, Italy |
| 56.6 | Appointed | Giovanni Francesco Falzacappa † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Prefect of the Apostolic Signatura |
| 38.2 | Confirmed | Nicolò Gatto † | Bishop of Patti, Italy |
| 60.4 | Confirmed | Augustin Johann Joseph Gruber † | Archbishop of Salzburg, Austria |
| 73.3 | Confirmed | Jacques-Alexis Jacquemin † | Bishop of Saint-Dié, France | Bishop Emeritus |
| 69.5 | Appointed | Louis-Sylvestre de La Châtre † | Titular Bishop of Hemeria |
| 58.6 | Confirmed | Ignacy Wincenty Stanislaw Mathy (Matthy) † | Bishop of Chelmno (Culma, Kulm), Poland |
| 48.1 | Confirmed | Marie-Joseph-François-Victor Monyer de Prilly † | Bishop of Châlons, France |
| 38.7 | Confirmed | Ferenc di Paolo de Nádasdy-Fogaras † | Bishop of Vác, Hungary | Archbishop of Kalocsa, Hungary |
| 52.1 | Appointed | Johann Friedrich Oesterreicher † | Auxiliary Bishop of Bamberg, Germany | Bishop of Eichstätt, Germany |
| 52.1 | Appointed | Johann Friedrich Oesterreicher † | Titular Bishop of Dorylaëum | Bishop of Eichstätt, Germany |
| 66.1 | Appointed | Fortunatus Paternò † | Titular Bishop of Orthosias in Caria |
| 41.9 | Appointed | Tommaso Riario Sforza † | Cardinal-Deacon of Santa Maria in Domnica | Cardinal, Priest of the Roman Curia - Other |
| 58.8 | Confirmed | Jean-François de Saunhac-Belcastel † | Bishop of Perpignan-Elne, France |
| 43.7 | Confirmed | Francesco di Paola Villadecani † | Cardinal, Archbishop of Messina, Italy |
| 58.4 | Appointed | Francesco Maria Zoppi † | Bishop of Massa Carrara, Italy | Bishop Emeritus |
| 21 Nov | | Born | Nilo Isvoroff † | Roustchouk, Bulgaria | Archbishop Emeritus |
| 23 Nov | 68.5 | Ordained Bishop | Filippo Ambrosi † | Bishop of Montalto (delle Marche), Italy |
| 67.6 | Ordained Bishop | Pietro Maria d’Agostino † | Bishop of Agrigento (Girgenti), Italy |
| 66.1 | Ordained Bishop | Fortunatus Paternò † | Titular Bishop of Orthosias in Caria |
| 68.2 | Resigned | Joaquim de Sant’Ana Carvalho † | Bishop of Faro {Algarve}, Portugal | Bishop Emeritus |
| 58.5 | Ordained Bishop | Francesco Maria Zoppi † | Bishop of Massa Carrara, Italy | Bishop Emeritus |
| 24 Nov | 56.1 | Confirmed | Carlos de São José de Azevedo e Sousa, O.F.M. † | Bishop of Guarda, Portugal |
| 54.3 | Confirmed | Giuseppe de Belánsky † | Bishop of Banská Bystrica, Slovakia |
| 66.0 | Confirmed | Jozef Bélik † | Bishop of Spiš, Slovakia |
| 67.2 | Confirmed | François-François Besson † | Bishop of Metz, France |
| 64.1 | Confirmed | Inocêncio António das Neves Portugal, O. Carm. † | Bishop of Faro {Algarve}, Portugal | Bishop-Elect |
| 53.2 | Appointed | Mateusz Lipski † | Auxiliary Bishop of Mohilev, Belarus | Bishop of Minsk, Belarus |
| 53.2 | Appointed | Mateusz Lipski † | Titular Bishop of Aureliopolis in Lydia | Bishop of Minsk, Belarus |
| 67.8 | Confirmed | Antón Mákay † | Bishop of Veszprém, Hungary |
| 57.9 | Confirmed | Stanislao Mossa † | Bishop of Ampurias e Civita, Italy |
| 67.1 | Confirmed | Domenico Orlando, O.F.M. Conv. † | Bishop of Catania, Italy |
| 60.1 | Confirmed | Giuseppe Maria Pezzella, O.S.A. † | Bishop of Teramo, Italy | Bishop of Calvi e Teano, Italy |
| 78.6 | Confirmed | Salvatore Maria Pignattaro, O.P. † | Archbishop (Personal Title) of Isernia, Italy | Bishop |
| 56.6 | Appointed | Konstanty Wincenty Plejewski † | Auxiliary Bishop of Płock, Poland |
| 56.6 | Appointed | Konstanty Wincenty Plejewski † | Titular Bishop of Lagania | Auxiliary Bishop of Płock, Poland |
| 36.1 | Confirmed | Claude-Marie-Paul Tharin † | Bishop of Strasbourg, France | Bishop Emeritus |
| 26 Nov | 38.2 | Selected | Charles-Auguste-Marie-Joseph Forbin-Janson † | Bishop of Nancy (-Toul), France |
| 56.0 | Selected | Jean-Joseph-Pierre Guigou † | Bishop of Angoulême, France |
| 27 Nov | 53.9 | Died | Nicholas Joseph Archdeacon † | Bishop of Kilmacduagh, Ireland |
| 4 Dec | | Born | Juan Francisco Bux y Loras † | Fortanete | Auxiliary Bishop of Toledo, Spain |
| 7 Dec | | Born | Juan María Ambrosio Huerta Galván † | Lima | Bishop of Arequipa, Peru |
| 60.1 | Ordained Bishop | Giuseppe Maria Pezzella, O.S.A. † | Bishop of Teramo, Italy | Bishop of Calvi e Teano, Italy |
| 11 Dec | 70.6 | Died | Ignacy Stanislaw Czyżewski † | Bishop of Sejny o Sejna o Augustów, Poland |
| 12 Dec | | Born | Tomasz Teofil Kuliński † | Camielvio | Bishop of Kielce, Poland |
| 15 Dec | | Born | Bernard Joseph John McQuaid † | New York | Bishop of Rochester, New York, USA |
| 17 Dec | | Born | François-Albert Leuillieux † | Saint-Omer | Archbishop of Chambéry, France |
| 19 Dec | 52.0 | Died | Paulo a Santo Tomas de Aquino, O.P. † | Archbishop of Cranganore (Angamala), India |
| 20 Dec | 23.2 | Ordained Priest | Pietro Bottazzi † | Priest | Bishop of Larino, Italy |
| 26.1 | Ordained Priest | José Xavier de Cerveira e Sousa † | Priest | Bishop of Viseu, Portugal |
| 22.6 | Ordained Priest | Vincenzo Ciccolo Rinaldi † | Priest | Bishop of Trapani, Italy |
| 24.0 | Ordained Priest | Joseph Crétin † | Priest | Bishop of Saint Paul, Minnesota, USA |
| 24.0 | Ordained Priest | Jacques Jeancard, O.M.I. † | Priest | Auxiliary Bishop Emeritus of Marseille, France |
| Born | Dominic Manucy † | Saint Augustine, FL | Vicar Apostolic of Brownsville, Texas, USA |
| 22.7 | Ordained Priest | Guillaume-Clément Masson, M.E.P. † | Priest of La Société des Missions Etrangères | Coadjutor Vicar Apostolic of Southern Tonking {Tonkino Meridionale}, Viet Nam |
| 22.1 | Ordained Deacon | Leonardo Moccia † | Deacon | Bishop of Gallipoli, Italy |
| 23.2 | Ordained Priest | Enrico Orfei † | Priest | Cardinal, Archbishop of Ravenna, Italy |
| 22.9 | Ordained Priest | Antonio Ranza † | Priest | Bishop of Piacenza, Italy |
| 22.2 | Ordained Deacon | Franciszek Stefanowicz † | Deacon of Gniezno e Poznań, Poland | Auxiliary Bishop |
| 21 Dec | 84.8 | Died | Domenico Spinucci † | Cardinal, Archbishop of Benevento, Italy |
| 24 Dec | | Born | William Hugh Joseph Clifford † | Irnham | Bishop of Clifton, England, Great Britain |
| 25 Dec | | Born | Eusebio Marie Semprini, O.F.M. † | Dongo, Italy | Vicar Apostolic Emeritus of Southern Hunan {Hu-Nan Meridionale}, China |
| 26 Dec | | Born | Augustinus Accoramboni † | Roma | Titular Archbishop of Heliopolis in Phoenicia |
| 83.4 | Died | Joannes Petrus Galzigna † | Bishop of Arbe (Rab), Croatia |
| 27 Dec | 57.9 | Appointed | Jean-Paul-Gaston de Pins † | Apostolic Administrator of Lyon (-Vienne), France | Apostolic Administrator Emeritus |
| 26.0 | Ordained Priest | Melchior Ferdinand Joseph von Diepenbrock † | Priest | Cardinal, Bishop of Wrocław (Breslau), Poland |
| 28 Dec | 52.2 | Ordained Bishop | Johann Friedrich Oesterreicher † | Titular Bishop of Dorylaëum | Bishop of Eichstätt, Germany |
| 29 Dec | 25.0 | Ordained Deacon | Godehard Braun † | Deacon of Trier, Germany | Auxiliary Bishop |
| 30 Dec | 85.9 | Died | Tiberio Cortese † | Bishop of Modena, Italy |
| 31 Dec | 62.0 | Died | Paolo Leardi † | Apostolic Nuncio to Austria |