| Date | Age | Event | Bishop | Title | Current Title |
| 2 Oct | 42.3 | Ordained Bishop | Anton Alojzij Wolf † | Bishop of Ljubljana, Slovenia |
| 3 Oct | 24.4 | Ordained Priest | Bonifacio Cajani † | Priest | Bishop of Cagli e Pergola, Italy |
| 65.6 | Ordained Bishop | Antonio Ceruelo Sanz † | Bishop of Menorca, Spain |
| 42.8 | Ordained Bishop | Franz Xavier (Franciszek Ksawery) Luschin (Luszin) † | Bishop of Trento, Italy | Archbishop of Gorizia e Gradisca, Italy |
| 60.5 | Ordained Bishop | Petrus Pustett † | Bishop of Eichstätt, Germany |
| 23.0 | Ordained Priest | Franciszek Stefanowicz † | Priest of Gniezno e Poznań, Poland | Auxiliary Bishop |
| 58.7 | Ordained Bishop | Juan Baltasar Toledano † | Bishop of Valladolid, Spain |
| 4 Oct | 62.0 | Died | Simón Antonio de Rentería y Reyes † | Archbishop of Santiago de Compostela, Spain |
| 8 Oct | 22.5 | Ordained Deacon | Alois Josef Schrenk † | Deacon | Archbishop of Praha {Prague}, Czechia |
| 9 Oct | 61.2 | Selected | Bernardo Antônio de Figueiredo † | Bishop of Faro {Algarve}, Portugal |
| 77.3 | Died | Viktor Franz Anton von Glutz-Ruchti † | Coadjutor Bishop of Basel, Switzerland |
| 11 Oct | 78.2 | Died | Jean-Louis-Simon Rollet † | Bishop Emeritus of Montpellier, France |
| 12 Oct | 60.7 | Ordained Bishop | Joaquín López y Sicilia † | Bishop of Coria, Spain | Archbishop of Valencia, Spain |
| 13 Oct | 70.5 | Died | Jean-Marie Cliquet de Fontenay † | Archbishop of Bourges, France |
| 16 Oct | | Born | Benoît-Marie Langénieux † | | Cardinal, Archbishop of Reims, France |
| Died | Antonio (Andon) Missirli † | Vicar Apostolic of Constantinople (Istanbul) (Armenian), Turkey |
| 17 Oct | 68.9 | Ordained Bishop | Ramón María Diego de Adurriaga Uribe † | Bishop of Ávila, Spain |
| 19 Oct | 48.6 | Selected | Pablo Jesús Corcuera y Caserta † | Bishop of Vic, Spain |
| 32.7 | Resigned | Denis Lyons † | Vicar Apostolic of Nova Scotia, Canada | Priest of Cork, Ireland |
| 32.7 | Resigned | Denis Lyons † | Titular Bishop-Elect of Tanis | Priest of Cork, Ireland |
| 21 Oct | 58.8 | Selected | Francisco Genovés, O.P. † | Bishop of Cebu, Philippines |
| 23 Oct | 73.1 | Died | Michele Spinelli, C.R. † | Archbishop of Sorrento, Italy |
| 24 Oct | 39.3 | Died | Guillermo Martínez Riaguas † | Bishop of Astorga, Spain |
| 25 Oct | 72.6 | Died | Patrick MacMullan † | Bishop of Down and Connor, Ireland |
| 26 Oct | 58.6 | Selected | Francisco Javier de Cienfuegos y Jovellanos † | Cardinal, Archbishop of Sevilla {Seville}, Spain |
| Born | Niccola Sozzifanti † | | Bishop of Pistoia e Prato, Italy |
| Born | Giovanni Maria Strocchi † | | Bishop of Cesena, Italy |
| 27 Oct | 60.8 | Selected | Tomás La Iglesia España † | Bishop of Zamora, Spain |
| 28 Oct | 40.8 | Ordained Bishop | Robert Logan † | Titular Bishop of Tremithus | Bishop of Meath, Ireland |
| 50.4 | Selected | Isidoro Bonifacio López Pulido, O.P. † | Bishop of Urgell, Spain | Bishop of Segovia, Spain |
| 29 Oct | 47.0 | Selected | Rafael Téllez, O.F.M. Cap. † | Archbishop of Santiago de Compostela, Spain |
| 3 Nov | | Born | Spiridione Maddalena † | | Archbishop of Corfù, Greece |
| 4 Nov | | Born | Pierre-Ferdinand Vitte, S.M. † | | Vicar Apostolic Emeritus of Nouvelle-Calédonie (New Caledonia), Pacific (Oceania) |
| 5 Nov | 62.1 | Selected | András Bőle † | Bishop of Szombathely, Hungary |
| 6 Nov | | Born | Tomás Bryan y Livermore † | | Bishop of Cartagena (en España) |
| 7 Nov | 46.9 | Ordained Bishop | Maurelio (de Santa Teresa) Stabellini, O.C.D. † | Titular Bishop of Dioclea | Coadjutor Vicar Apostolic Emeritus of Verapoly, India |
| 48.1 | Ordained Bishop | Agustín Lorenzo Varela Temes † | Bishop of Salamanca, Spain |
| 11 Nov | | Born | Andreas Steinhuber, S.J. † | | Cardinal, Prefect of the Congregation of the Index |
| 14 Nov | 38.6 | Ordained Bishop | Franciszek de Paula Pišték (Pisztek) † | Titular Bishop of Azotus | Archbishop of Lviv, Ukraine |
| 18 Nov | 24.0 | Ordained Priest | Michael von Deinlein † | Priest of Bamberg, Germany | Archbishop |
| 19 Nov | 53.8 | Succeeded | Edward Kernan † | Bishop of Clogher, Ireland |
| 81.8 | Died | James Murphy † | Bishop of Clogher, Ireland |
| 21 Nov | 48.2 | Ordained Bishop | Manuel Bernardo Morete Bodelón † | Bishop of Islas Canarias {Canary Islands}, Spain | Bishop of Astorga, Spain |
| 52.4 | Ordained Bishop | Francesco Tassinari † | Bishop of Urbania e Sant’Angelo in Vado, Italy |
| 24 Nov | 89.1 | Died | Jean-Baptiste du Chilleau † | Archbishop of Tours, France |
| 57.4 | Succeeded | Augustin-Louis de Montblanc † | Archbishop of Tours, France |
| 25 Nov | | Born | Giovanni Battista Tescari † | | Bishop of Borgo San Donnino, Italy |
| 28 Nov | 72.5 | Died | Juan Cruz Ruiz de Cabañas y Crespo † | Bishop of Guadalajara, Jalisco, México |
| 30 Nov | 61.2 | Selected | Augustin de Mailhet de Vachères † | Bishop of Tulle, France |
| 54.3 | Selected | Domingo de Silos Santiago Apollinario Moreno, O.S.B. † | Bishop of Cádiz, Spain |
| 54.7 | Selected | Guillaume-Aubin de Villèle † | Archbishop of Bourges, France |
| Dec | 26.8 | Ordained Priest | Telmo Maceira † | Priest | Bishop of Tuy, Spain |
| 54.4 | Ordained Bishop | António Maurício Ribeiro † | Titular Bishop of Bugia | Auxiliary Bishop of Évora, Portugal |
| 3 Dec | 16.9 | Entered | Giuseppe Pecci, S.J. † | Member of Society of Jesus | Cardinal, Prefect Emeritus of the Congregation for Studies |
| 5 Dec | | Born | Jean-Claude Duret, C.S.Sp. † | | Vicar Apostolic of Senegambia, Senegal |
| 67.0 | Ordained Bishop | Juan Francisco Martínez y Castrillón † | Bishop of Palencia, Spain | Bishop of Málaga, Spain |
| 79.1 | Died | Charles Mannay † | Bishop of Rennes, France |
| 6 Dec | | Born | Vincenzo Salvatore † | | Bishop of Gravina e Irsina (Montepeloso), Italy |
| 7 Dec | | Born | Anthony Dominic Ambrose Pellicer † | | Bishop of San Antonio, Texas, USA |
| 79.2 | Died | Juan Miguel Pérez González † | Bishop of Gerona, Spain |
| 8 Dec | 17.7 | Professed | Bernardo of St. Theresa (Giuseppe) Baccinelli, O.C.D. † | Member of Order of Discalced Carmelites | Vicar Apostolic of Verapoly, India |
| Born | Léon Jules Marie Bélouino † | | Auxiliary Bishop Emeritus of Port-au-Prince, Haïti |
| 53.0 | Ordained Bishop | Félix Herrero Valverde † | Bishop of Orihuela, Spain |
| 62.9 | Selected | Prosper de Tournefort † | Bishop of Limoges, France |
| 11 Dec | 52.9 | Selected | Gabriele Papa † | Archbishop of Sorrento, Italy |
| 12 Dec | | Born | José de Jesús María Uriarte y Pérez † | | Bishop of Sinaloa, México |
| 57.0 | Ordained Bishop | Franciszek Ksawery Zglenicki † | Titular Bishop of Gortyna | Auxiliary Bishop of Kraków, Poland |
| 13 Dec | 54.7 | Resigned | Camillo Alleva † | Bishop of Ugento, Italy | Archbishop of Salerno (-Acerno), Italy |
| 15 Dec | 65.0 | Resigned | Leopoldo Corigliano † | Bishop of Nardò, Italy | Bishop Emeritus |
| 23.1 | Ordained Deacon | Christoph Florentius Kött † | Deacon of Fulda, Germany | Bishop |
| 54.3 | Selected | Jules-François de Simony † | Bishop of Soissons, France | Bishop Emeritus of Soissons (-Laon), France |
| 16 Dec | 30.0 | Ordained Priest | Robert William Willson (Wilson) † | Priest of Midland District, England, Great Britain | Bishop Emeritus of Hobart, Australia |
| 18 Dec | 22.6 | Ordained Priest | Giuseppe Andrea Bizzarri † | Priest | Cardinal, Prefect of the Roman Curia - Other |
| 22.9 | Ordained Deacon | Pedro José Chávez Ponce † | Deacon of Arequipa, Peru | Bishop of Puno, Peru |
| 24.1 | Ordained Priest | Louis-Auguste Delalle † | Priest | Bishop of Rodez, France |
| 25.3 | Ordained Priest | Jean-François-Augustin Galtier † | Priest | Bishop of Pamiers, France |
| 23.1 | Ordained Priest | Christoph Florentius Kött † | Priest of Fulda, Germany | Bishop |
| Born | Giulio Lenti † | | Vicegerent of Roma {Rome}, Italy |
| 22.1 | Ordained Deacon | Giovanni Francesco Magnani † | Deacon of Bologna, Italy | Bishop of Recanati e Loreto, Italy |
| 24.3 | Ordained Priest | Carmelo Scicluna † | Priest of Malta | Bishop |
| 23.1 | Ordained Priest | Giuseppe Singlau † | Priest | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 25.2 | Ordained Deacon | William Turner † | Deacon of Northern District, England, Great Britain | Bishop of Salford, England, Great Britain |
| 19 Dec | 22.8 | Ordained Priest | Johann Nepomucene Amberg † | Priest of Brixen {Bressanone}, Italy | Auxiliary Bishop |
| 63.5 | Selected | José Antonio Azpeitia y Sáenz de Santamaria † | Bishop of Cartagena (en España) |
| 20 Dec | 43.4 | Confirmed | Giuseppe-Maria Amorelli † | Bishop of Siracusa, Italy |
| 52.7 | Appointed | Giovanni Bindi Sergardi † | Bishop of Montalcino, Italy |
| 61.2 | Confirmed | Serafino Matteo Ignazio Marie Carchero, O.F.M. Cap. † | Bishop of Ogliastra, Italy | Bishop of Bisarchio o Bisarcio (Ozieri), Italy |
| 58.7 | Confirmed | Francisco Javier de Cienfuegos y Jovellanos † | Cardinal, Archbishop of Sevilla {Seville}, Spain |
| 58.9 | Confirmed | Pablo Colmenares, O.S.B. † | Bishop of Lérida, Spain |
| 48.8 | Confirmed | Pablo Jesús Corcuera y Caserta † | Bishop of Vic, Spain |
| 54.0 | Appointed | Francesco Saverio d’Urso, O.M. † | Bishop of Ugento, Italy |
| 61.4 | Confirmed | Bernardo Antônio de Figueiredo † | Bishop of Faro {Algarve}, Portugal |
| 54.1 | Appointed | Pietro Francesco Galleffi † | Chamberlain (Camerlengo) of the Apostolic Chamber | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 59.9 | Elevated to Cardinal | Pedro Inguanzo Rivero † | Cardinal, Archbishop of Toledo, Spain |
| 60.9 | Confirmed | Tomás La Iglesia España † | Bishop of Zamora, Spain |
| 50.5 | Confirmed | Isidoro Bonifacio López Pulido, O.P. † | Bishop of Urgell, Spain | Bishop of Segovia, Spain |
| 49.1 | Elevated to Cardinal | Ludovico Micara, O.F.M. Cap. † | In Pectore | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 52.9 | Confirmed | Gabriele Papa † | Archbishop of Sorrento, Italy |
| 56.7 | Confirmed | Giuseppe Saverio Poli † | Bishop of Anglona-Tursi, Italy |
| 59.9 | Appointed | Ferdinand August Maria Joseph Anton Spiegel zum Desenberg † | Archbishop of Köln {Cologne}, Germany |
| 47.1 | Confirmed | Rafael Téllez, O.F.M. Cap. † | Archbishop of Santiago de Compostela, Spain |
| 51.2 | Appointed | Maurycy Mateusz Wojakowski † | Auxiliary Bishop of Lublin, Poland |
| 51.2 | Appointed | Maurycy Mateusz Wojakowski † | Titular Bishop of Arcadiopolis in Asia | Auxiliary Bishop of Lublin, Poland |
| 21 Dec | 54.0 | Ordained Bishop | Francesco Saverio d’Urso, O.M. † | Bishop of Ugento, Italy |
| 41.2 | Ordained Bishop | Francisco Javier García Casarrubios y Melgar, O. Cist. † | Bishop of Ceuta, Spain | Bishop of Tuy, Spain |
| 56.7 | Ordained Bishop | Giuseppe Saverio Poli † | Bishop of Anglona-Tursi, Italy |
| 26 Dec | | Born | Placido Petacci † | | Bishop Emeritus of Tivoli, Italy |
| 63.0 | Selected | Hipólito Antonio Sánchez Rangel de Fayas, O.F.M. Obs. † | Bishop of Lugo, Spain |
| 27 Dec | 52.7 | Ordained Bishop | Giovanni Bindi Sergardi † | Bishop of Montalcino, Italy |
| 30 Dec | 59.5 | Selected | Joseph-Julien de Saint-Rome-Gualy † | Bishop of Carcassonne, France |
| 31 Dec | | Born | Jan Ignacy Korytkowski † | | Auxiliary Bishop-Elect of Gniezno e Poznań, Poland |
| 80.6 | Died | Irénée-Yves Desolle (Dessole) † | Archbishop Emeritus of Chambéry, France |