| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Appointed | José Andrés de Achurra y Núñez del Arco † | Bishop of Trujillo, Peru |
| Died | Jean-Joseph-Victor de Castellane-Adhémar † | Bishop of Senez, France |
| 35.0 | Appointed | William Coppinger † | Coadjutor Bishop of Ross, Ireland | Bishop of Cloyne, Ireland |
| 35.0 | Ordained Bishop | William Coppinger † | Coadjutor Bishop of Cloyne, Ireland | Bishop |
| Appointed | Henri-Charles du Lau d'Allemans † | Bishop of Grenoble, France |
| 22.4 | Ordained Priest | Simon Garnier † | Priest | Bishop of Vannes, France |
| Appointed | Paolo Francesco Giustiniani † | Titular Archbishop of Chalcedon | Bishop Emeritus of Treviso, Italy |
| Retired | Paolo Francesco Giustiniani † | Bishop of Treviso, Italy | Bishop Emeritus |
| Appointed | Athanase IV Jaouhar † | Patriarch of Antiochia {Antioch} (Melkite), Syria |
| 54.9 | Appointed | Ignace-François de Joannis de Verclos † | Bishop of Acci and Mariana, France |
| 35.0 | Appointed | de Longueville † | Prefect of Iles Saint-Pierre et Miquelon | Prefect Emeritus |
| 24.2 | Ordained Priest | Alexandre-Charles-Louis-Rose de Lostanges-Saint-Alvère † | Priest | Bishop of Périgueux, France |
| Born | Camillo Monteforte † | Napoli | Auxiliary Bishop of Napoli {Naples}, Italy |
| 54.2 | Appointed | Adam Stanisław Naruszewicz † | Bishop of Smoleńsk, Poland | Bishop of Luceoria o Łuck e Zytomir o Zytomierz, Ukraine |
| 50.4 | Died | Domingo a Rosario, O.P. † | Bishop of São Tomé e Príncipe |
| 64.0 | Died | Mateo Joaquin Rubio de Arevalo † | Bishop of Cebu, Philippines |
| 24.8 | Ordained Priest | Thomas Smith † | Priest | Vicar Apostolic of Northern District, England, Great Britain |
| Born | Gabriele Ventriglia † | Alife | Bishop of Caiazzo, Italy |
| Died | Gabriel Wodzyński † | Bishop of Smoleńsk, Poland |
| 16.9 | Professed | Roman Sebastian (Franz Xaver) Zängerle, O.S.B. † | Member of Order of Saint Benedict | Bishop of Seckau, Austria |
| 4 Jan | | Appointed | Thomas O’Connor † | Bishop of Achonry, Ireland |
| 5 Jan | 24.8 | Professed | Vicente da Soledade e Castro, O.S.B. † | Member of Order of Saint Benedict | Archbishop of São Salvador da Bahia, Brazil |
| 9 Jan | | Born | Rudolf Johannes Joseph Rainier von Habsburg-Lotharingen † | Florence | Cardinal, Archbishop of Olomouc, Czech Republic |
| 11 Jan | | Died | James Brady † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 13 Jan | 35.3 | Ordained Bishop | Anne-Louis-Henri de La Fare † | Bishop of Nancy, France | Cardinal, Archbishop of Sens (-Auxerre), France |
| 21 Jan | 85.0 | Died | Paul d’Albert de Luynes † | Cardinal, Archbishop of Sens, France |
| 23 Jan | 47.6 | Ordained Bishop | Pedro José Chávez de la Rosa † | Bishop of Arequipa, Peru | Bishop Emeritus |
| 60.3 | Appointed | Etienne-Charles de Loménie de Brienne † | Cardinal, Archbishop of Sens, France |
| 27 Jan | 50.7 | Ordained Bishop | Franz Egon Freiherr von Fürstenberg † | Titular Bishop of Derbe | Bishop of Hildesheim, Germany |
| 3 Feb | 44.0 | Ordained Priest | Karl Theodor Freiherr von Dalberg † | Priest of Worms, Germany | Bishop |
| 43.9 | Installed | François de Fontanges † | Archbishop of Bourges, France | Bishop of Autun, France |
| 11 Feb | | Born | Anton Gottfried Claessen † | Gangelt | Auxiliary Bishop of Köln {Cologne}, Germany |
| 16 Feb | 24.4 | Ordained Priest | Angelo Pietro (Andelo Petar) Galli † | Priest of Corfù, Greece | Bishop of Hvar (Lesina), Croatia |
| 23.5 | Ordained Priest | Bartholomeu de Martyribus Maya, O.C.D. † | Priest of Order of Discalced Carmelites | Prelate of Mozambico, Mozambique |
| 19 Feb | 76.1 | Died | Manuel de Alday y Axpée † | Bishop of Santiago de Chile |
| 20 Feb | | Born | Giuseppe Cosenza † | Naples | Cardinal, Archbishop of Capua, Italy |
| 24 Feb | | Born | Francesco de' Marchesi Canali † | Rieti | Auxiliary Bishop of Sabina, Italy |
| 29 Feb | | Born | Louis-François-Auguste de Rohan-Chabot † | Paris | Cardinal, Archbishop of Besançon, France |
| 4 Mar | 74.7 | Died | Antonio Eugenio Visconti † | Cardinal, Cardinal-Priest of S. Croce in Gerusalemme |
| 7 Mar | 48.2 | Appointed | José Nicolau de Azevedo Coutinho Gentil † | Prelate of Goiás, Brazil |
| Born | Adriano Fieschi † | Genoa | Cardinal, Cardinal-Priest of S. Maria della Vittoria |
| 8 Mar | 23.2 | Ordained Priest | Francisco Ferreira de Azevedo † | Priest | Bishop of Goiás, Brazil |
| 62.2 | Resigned | Jose Martinez Palomino y Lopez de Lorena † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México | Bishop of Foreign Diocese |
| 9 Mar | 41.9 | Appointed | Louis-Mathias-Joseph de Barral † | Coadjutor Bishop of Troyes, France | Archbishop Emeritus of Tours, France |
| 10 Mar | 56.8 | Appointed | Fernando Cardiñanos, O.F.M. † | Bishop of Comayagua, Honduras |
| 44.1 | Appointed | Karl Theodor Freiherr von Dalberg † | Titular Archbishop of Tarsus | Bishop of Worms, Germany |
| 44.1 | Confirmed | Karl Theodor Freiherr von Dalberg † | Coadjutor Bishop of Worms, Germany | Bishop |
| 53.7 | Appointed | José Joaquín Granados y Gálvez, O.F.M. † | Bishop of Sonora, Sonora, México | Bishop of Durango, Durango, México |
| 62.6 | Appointed | Santiago José Echaverría Nieto de Osorio y Elguera † | Bishop of Tlaxcala, Tlaxcala, México |
| 60.4 | Confirmed | Etienne-Charles de Loménie de Brienne † | Cardinal, Archbishop of Sens, France |
| 62.4 | Appointed | José Francisco Miguel António de Mendonça Valdereis † | Cardinal, Patriarch of Lisboa, Portugal |
| 56.2 | Confirmed | Angel Mariano Moscoso Pérez y Oblitas † | Bishop of Córdoba (Tucumán), Argentina |
| Born | Giuseppe Sanguettola † | Milan | Bishop of Crema, Italy |
| 15 Mar | 60.8 | Died | Ludwig Joseph Freiherr von Welden auf Laubheim und Hohenaltingen † | Bishop of Freising, Germany |
| 17 Mar | 56.9 | Died | Ernest Johann Nepomuk Reichsgraf von Herberstein (Herbstein) † | Bishop of Linz, Austria |
| 29 Mar | | Born | Gaetano Baluffi † | Ancona | Cardinal, Bishop of Imola, Italy |
| 30 Mar | 44.1 | Appointed | François de Fontanges † | Archbishop of Toulouse, France | Bishop of Autun, France |
| Apr | | Ordained Bishop | Thomas O’Connor † | Bishop of Achonry, Ireland |
| 6 Apr | 47.4 | Appointed | Jean-Auguste de Chastenet de Puységur † | Archbishop of Bourges, France | Archbishop Emeritus |
| 7 Apr | 60.5 | Appointed | Eustaquio Azara, O.S.B. † | Bishop of Ibiza, Spain | Bishop of Barcelona, Spain |
| 62.5 | Elevated to Cardinal | José Francisco Miguel António de Mendonça Valdereis † | Cardinal, Patriarch of Lisboa, Portugal |
| 9 Apr | | Born | Mariano Venturi † | Costacciaro | Bishop of Veroli, Italy |
| 10 Apr | | Died | Théodose Dahan † | Patriarch of Antiochia {Antioch} (Melkite), Syria |
| 17 Apr | 49.0 | Installed | Pierre de Séguiran † | Bishop of Nevers, France |
| 21 Apr | | Appointed | Mathieu Righet † | Vicar Apostolic of Alexandria {Alessandria} (Coptic), Egypt |
| 27 Apr | 46.2 | Ordained Bishop | Michel Leopold Freiherr Brigido von Marenfels und Bresoviz † | Bishop of Ljubljana, Slovenia | Bishop of Spiš, Slovakia |
| 2 May | 74.7 | Died | Antoine de Malvin de Montazet † | Archbishop of Lyon, France |
| 76.2 | Died | Francesco Pettorelli Lalatta † | Bishop of Parma, Italy |
| 9 May | 40.1 | Appointed | Joseph Anton Gall † | Bishop of Linz, Austria |
| 12 May | 54.0 | Appointed | Yves-Alexandre de Marbeuf † | Archbishop of Lyon, France |
| 16 May | | Born | Francesco Iavarone † | Napoli | Bishop of Sant’Agata de’ Goti, Italy |
| 17 May | 47.5 | Ordained Priest | Joseph Christian Franz de Paula Prinz zu Hohenlohe-Waldenburg-Bartenstein † | Priest of Wrocław, Poland | Bishop |
| 26 May | 48.6 | Appointed | Max Polykarp Reichsgraf von Törring-Jettenbach † | Bishop of Freising, Germany | Bishop of Regensburg, Germany |
| 1 Jun | 60.7 | Ordained Bishop | Eustaquio Azara, O.S.B. † | Bishop of Ibiza, Spain | Bishop of Barcelona, Spain |
| 24.6 | Ordained Priest | Benedict Joseph Flaget, P.S.S. † | Priest of Society of Priests of St. Sulpice | Bishop of Louisville, Kentucky, USA |
| 3 Jun | | Born | Buenaventura Codina Augerolas, C.M. † | Hostabrich | Bishop of Islas Canarias {Canary Islands}, Spain |
| 4 Jun | 78.1 | Died | Louis-Philippe-François Mariauchau d'Esglis † | Bishop of Québec, Québec, Canada |
| 10 Jun | | Appointed | John Cruise † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 12 Jun | | Born | John Brady † | Coratober, Ireland | Bishop of Perth, Australia |
| 49.3 | Succeeded | Jean-François Hubert † | Bishop of Québec, Québec, Canada | Bishop Emeritus |
| 18 Jun | 44.4 | Appointed | Karl Theodor Freiherr von Dalberg † | Coadjutor Bishop of Konstanz {Constance}, Germany | Bishop of Worms, Germany |
| Born | Nicolás Luis Lezo Garro † | Madrid, Spain | Titular Archbishop of Seleucia in Isauria |
| 26 Jun | | Born | Henry Hughes, O.F.M. † | Wexford, Ireland | Vicar Apostolic Emeritus of Gibraltar, Gibraltar |
| 12 Jul | 69.8 | Died | Daniel Johann Anton Reichsritter von Gebsattel † | Auxiliary Bishop of Würzburg, Germany |
| 15 Jul | 44.4 | Confirmed | Karl Theodor Freiherr von Dalberg † | Coadjutor Bishop of Konstanz {Constance}, Germany | Bishop of Worms, Germany |
| 60.1 | Died | Manuel Felipe Miralles † | Bishop of Cartagena (en España) |
| 27 Jul | 23.9 | Ordained Priest | Bernhard Galura † | Priest of Konstanz {Constance}, Germany | Bishop of Brixen {Bressanone}, Italy |
| 26.8 | Ordained Priest | Matthias Paulus Steindl † | Priest of Wien {Vienna}, Austria | Auxiliary Bishop |
| 30 Jul | 72.7 | Died | Kajetan Ignacy Sołtyk † | Bishop of Kraków, Poland |
| Aug | 57.2 | Ordained Bishop | Fernando Cardiñanos, O.F.M. † | Bishop of Comayagua, Honduras |
| 4 Aug | 74.5 | Died | Vigilius Augustin Maria Graf von Firmian † | Bishop Emeritus of Lavant, Slovenia |
| 9 Aug | | Born | Emerico Farkas † | Zamoly | Bishop of Székesfehérvár (Albareale), Hungary |
| 12 Aug | | Born | Michael Johann Wagner † | Linz | Bishop of Sankt Pölten, Austria |
| 17 Aug | | Ordained Bishop | John Cruise † | Bishop of Ardagh (and Clonmacnois), Ireland |
| Born | Ferdinando Elano Kahn, O.P. † | Galizia Austriaca | Bishop of Tiraspol, Moldova |
| 18 Aug | 24.7 | Ordained Priest | József Vurum † | Priest | Bishop of Nitra, Slovakia |
| 20 Aug | 40.0 | Installed | Ján Révay † | Bishop of Spiš, Slovakia |
| 25 Aug | 25.1 | Appointed | Pierre-François-Martial de Loménie † | Coadjutor Archbishop of Sens, France |
| 31 Aug | 44.6 | Ordained Bishop | Karl Theodor Freiherr von Dalberg † | Titular Archbishop of Tarsus | Bishop of Worms, Germany |
| Born | Giuseppe Godeassi † | Medea | Archbishop of Zadar (Zara), Croatia |
| 6 Sep | 73.4 | Died | Giovanni Carlo Boschi † | Cardinal, Titular Archbishop of Atenia |
| 12 Sep | 75.4 | Retired | Isidro Rodríguez Lorenzo, O.S.Bas. † | Archbishop of Santo Domingo, Dominican Republic | Archbishop Emeritus |
| 15 Sep | 50.2 | Appointed | Michele Antonio Aymerich de Villamar † | Bishop of Ales e Terralba, Italy |
| 42.4 | Appointed | Louis-Mathias-Joseph de Barral † | Titular Bishop of Isaura | Archbishop Emeritus of Tours, France |
| 42.4 | Confirmed | Louis-Mathias-Joseph de Barral † | Coadjutor Bishop of Troyes, France | Archbishop Emeritus of Tours, France |
| 65.3 | Appointed | Antonio Caballero y Góngora † | Archbishop (Personal Title) of Córdoba, Spain | Bishop |
| 66.4 | Appointed | Francesco Carafa della Spina di Traetto † | Cardinal-Priest of S. Lorenzo in Lucina | Cardinal, Prefect of the Congregation of Bishops and Regulars |
| 44.5 | Confirmed | François de Fontanges † | Archbishop of Toulouse, France | Bishop of Autun, France |
| 19.1 | Ordained Priest | Karl Kajetan Graf von Gaisruck (Gaysruck) † | Priest of Passau, Germany | Cardinal, Archbishop of Milano {Milan}, Italy |
| 54.3 | Confirmed | Yves-Alexandre de Marbeuf † | Archbishop of Lyon, France |
| 61.4 | Appointed | Francisco Gabriel de Olivares y Benito † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México | Bishop of Durango, Durango, México |
| 60.1 | Appointed | Fernando del Portillo y Torres, O.P. † | Archbishop of Santo Domingo, Dominican Republic | Archbishop of Santafé en Nueva Granada, Colombia |
| 47.8 | Confirmed | Jean-Auguste de Chastenet de Puységur † | Archbishop of Bourges, France | Archbishop Emeritus |
| 50.4 | Appointed | Melchor Serrano Lázaro, Sch. P. † | Auxiliary Bishop of Valencia, Spain |
| 48.9 | Confirmed | Max Polykarp Reichsgraf von Törring-Jettenbach † | Bishop of Freising, Germany | Bishop of Regensburg, Germany |
| 42.5 | Appointed | Angel Velarde Bustamante † | Bishop of Popayán, Colombia |
| 20 Sep | 23.3 | Ordained Priest | Giovanni Antonio Benvenuti † | Priest | Cardinal, Bishop of Osimo e Cingoli, Italy |
| 22 Sep | | Born | James Kyle † | Edinburgh | Vicar Apostolic of Northern District, Scotland, Great Britain |
| 25 Sep | 77.1 | Died | Heinrich Bibra, O.S.B. † | Bishop of Fulda, Germany |
| 74.7 | Died | Joaquim Borges de Figueroa † | Archbishop Emeritus of São Salvador da Bahia, Brazil |
| 26 Sep | 47.9 | Appointed | Charles-François Bailly de Messein † | Coadjutor Bishop of Québec, Québec, Canada |
| 47.9 | Appointed | Charles-François Bailly de Messein † | Titular Bishop of Capsa | Coadjutor Bishop of Québec, Québec, Canada |
| 27 Sep | | Born | Joaquim Pereira Ferraz, O.S.B. † | Barcellos | Bishop of Leiria, Portugal |
| 28 Sep | 54.3 | Ordained Bishop | José Joaquín Granados y Gálvez, O.F.M. † | Bishop of Sonora, Sonora, México | Bishop of Durango, Durango, México |
| 5 Oct | 42.5 | Ordained Bishop | Louis-Mathias-Joseph de Barral † | Titular Bishop of Isaura | Archbishop Emeritus of Tours, France |
| 40.8 | Ordained Bishop | Gabriel-Melchior de Messey † | Bishop of Valence, France |
| 6 Oct | 47.8 | Died | Marie-Anne-Hippolyte Hay de Bonteville † | Bishop of Grenoble, France |
| 9 Oct | | Born | Niccola Gòrski † | Grudek | Bishop of Kamyanets-Podilskyi, Ukraine |
| 18 Oct | | Born | Ferdinando Girardi, C.M. † | Lauria | Bishop Emeritus of Sessa Aurunca, Italy |
| 22 Oct | | Born | Benedetto Colonna Barberini di Sciarra † | Rome | Cardinal, Archpriest of the Basilica di San Giovanni in Laterano {Saint John Lateran Basilica} |
| 26 Oct | 74.8 | Died | Félicien Bocon de La Merlière † | Bishop Emeritus of Apt, France |
| Born | Jean-Marie Mioland † | Lyon | Archbishop of Toulouse (-Narbonne), France |
| 31 Oct | | Born | Jean-Pierre-Marie Cadalen † | Alban | Bishop of Saint-Flour, France |
| 2 Nov | 34.8 | Appointed | Charles-Maurice de Talleyrand-Périgord † | Bishop of Autun, France | Bishop Emeritus |
| 3 Nov | | Born | Petrus Leopold Kaiser † | Mühlheim | Bishop of Mainz, Germany |
| 9 Nov | 25.4 | Ordained Priest | Augustin Johann Joseph Gruber † | Priest of Wien {Vienna}, Austria | Archbishop of Salzburg, Austria |
| 14 Nov | | Born | Giovanni Negri † | Fontanetto | Bishop of Tortona, Italy |
| 16 Nov | 23.2 | Ordained Priest | Joaquim de Meneses e Ataide, O.S.A. † | Priest of Order of St. Augustine | Bishop of Elvas, Portugal |
| 63.1 | Ordained Bishop | José Francisco Miguel António de Mendonça Valdereis † | Cardinal, Patriarch of Lisboa, Portugal |
| 18 Nov | 51.7 | Appointed | Adalbert Freiherr (Wilhelm Adolph Heinrich) von Harstall, O.S.B. † | Bishop of Fulda, Germany |
| 20 Nov | 59.8 | Appointed | Feliks Paweł Turski † | Bishop of Kraków, Poland |
| 29 Nov | 58.1 | Died | Vicente do Espirito Santo, O.A.D. † | Prelate of Goiás, Brazil |
| 69.3 | Died | Inácio de São Caetano, O.C.D. † | Bishop Emeritus of Penafiel, Portugal |
| 30 Nov | 50.6 | Ordained Bishop | Melchor Serrano Lázaro, Sch. P. † | Auxiliary Bishop of Valencia, Spain |
| 4 Dec | 81.4 | Died | Joaquín de Eleta, O.F.M. † | Bishop of Osma, Spain |
| 13 Dec | | Born | Philippe-Marie-Thérèse-Guy Carron † | Rennes | Bishop of Le Mans, France |
| 15 Dec | 42.9 | Appointed | Domingo Collantes, O.P. † | Bishop of Nueva Caceres, Philippines |
| 44.4 | Appointed | Giulio Maria della Somaglia † | Patriarch of the unknown of Titular See | Cardinal, Archivist of the Vatican Secret Archives |
| 40.7 | Confirmed | Joseph Anton Gall † | Bishop of Linz, Austria |
| 59.7 | Appointed | Juan Antonio Gallego y Orbigo, O.F.M. † | Archbishop of Manila, Philippines |
| 57.6 | Appointed | Franz Philipp Graf von Inzaghi † | Bishop of Gradisca, Italy | Bishop of Gorizia e Gradisca, Italy |
| 25.4 | Appointed | Pierre-François-Martial de Loménie † | Titular Archbishop of Traianopolis in Rhodope | Coadjutor Archbishop of Sens, France |
| 25.4 | Confirmed | Pierre-François-Martial de Loménie † | Coadjutor Archbishop of Sens, France |
| 61.2 | Appointed | Etienne-Charles de Loménie de Brienne † | Cardinal-Priest | Cardinal, Archbishop of Sens, France |
| 61.2 | Elevated to Cardinal | Etienne-Charles de Loménie de Brienne † | Cardinal, Archbishop of Sens, France |
| 51.9 | Appointed | Baltazar Jaime Martínez de Compañón † | Archbishop of Santafé en Nueva Granada, Colombia |
| 63.9 | Appointed | Blas Manuel Sobrino y Minayo † | Bishop of Santiago de Chile | Bishop of Trujillo, Peru |
| 34.9 | Confirmed | Charles-Maurice de Talleyrand-Périgord † | Bishop of Autun, France | Bishop Emeritus |
| 45.7 | Appointed | Johann Nepomuk Freiherr von Wolf † | Auxiliary Bishop of Freising, Germany | Bishop of Regensburg, Germany |
| 45.7 | Appointed | Johann Nepomuk Freiherr von Wolf † | Titular Bishop of Dorylaëum | Bishop of Regensburg, Germany |
| 20 Dec | 24.2 | Ordained Priest | Francesco Canali † | Priest | Cardinal, Bishop Emeritus of Tivoli, Italy |
| 24.1 | Ordained Priest | Domenico Novi Ciavarria † | Priest | Bishop of Avellino, Italy |
| 21 Dec | 44.4 | Ordained Bishop | Giulio Maria della Somaglia † | Patriarch of the unknown of Titular See | Cardinal, Archivist of the Vatican Secret Archives |
| 23 Dec | | Born | Roberto Giovanni F. Roberti † | San Giusto | Cardinal, Priest of the Roman Curia - Other |