| Date | Age | Event | Bishop | Title | Current Title | 
|---|
| unknown | 83.0 | Died | Julien-François Becquet, C.S.Sp. † | Prefect Emeritus of Iles Saint-Pierre et Miquelon | 
| 28.0 | Ordained Priest | Abdullah Blibl † | Priest | Archbishop of Cyprus (Maronite) | 
|  | Born | Jose Antonio Chaves, O.F.M. Obs. † |  | Auxiliary Bishop of Santafé en Nueva Granada, Colombia | 
| 76.0 | Died | Jean de Cairol de Madaillan † | Bishop Emeritus of Grenoble, France | 
| 37.7 | Ordained Priest | Jean-Paul Faudoas † | Priest | Bishop Emeritus of Meaux, France | 
| 22.4 | Ordained Priest | Simon Garnier † | Priest | Bishop of Vannes, France | 
| 76.8 | Died | Giovanni Battista Jurileo † | Bishop of Nona (Nin), Croatia | 
| 34.5 | Appointed | Jean de Longueville † | Prefect of Iles Saint-Pierre et Miquelon | Prefect Emeritus | 
|  | Born | Charles McNally † |  | Bishop of Clogher, Ireland | 
| 24.6 | Ordained Priest | José Antonio Joaquín Pérez Martínez y Robles † | Priest | Bishop of Tlaxcala (Puebla de los Angeles), México | 
| 50.4 | Died | Domingo do Rosario, O.P. † | Bishop of São Tomé e Príncipe | 
| 21.7 | Professed | Pierre Trenchant, M.E.P. † | Member of La Société des Missions Etrangères | Coadjutor Vicar Apostolic of Se-Ciuen (Setchoan, Szechwan, Sichuan), China | 
| 59.0 | Died | Giacinto Amedeo Vagnone † | Bishop Emeritus of Alba (Pompea), Italy | 
| 62.2 | Appointed | Luigi Valenti Gonzaga † | Prefect to Other | Cardinal, Librarian of the Vatican Library | 
| 4 Jan | 48.0 | Appointed | Boetius Egan † | Archbishop of Tuam, Ireland | 
| 38.0 | Appointed | Thomas O’Connor † | Bishop of Achonry, Ireland | 
| 5 Jan | 56.6 | Selected | Franz Philipp von Inzaghi † | Bishop of Gradisca (d’Isonzo), Italy | Bishop of Gorizia e Gradisca, Italy | 
| 24.7 | Professed | Vicente da Soledade e Castro, O.S.B. † | Member of Order of Saint Benedict | Archbishop of São Salvador da Bahia, Brazil | 
| 8 Jan |  | Born | Rudolf Johannes Joseph Rainier von Habsburg-Lotharingen † |  | Cardinal, Archbishop of Olomouc, Czechia | 
| 11 Jan | 79.0 | 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 | 
| 15 Jan | 34.6 | Appointed | William Coppinger † | Coadjutor Bishop of Cloyne and Ross, Ireland | Bishop | 
| 34.6 | Appointed | William Coppinger † | Titular Bishop of Axieri (Azieri) | Bishop of Cloyne and Ross, Ireland | 
| 21 Jan | 85.0 | Died | Paul d’Albert de Luynes † | Cardinal, Archbishop of Sens, France | 
| 22 Jan | 51.0 | Appointed | Stefan Lewiński † | Coadjutor Bishop of Lutsk and Ostroh (Ukrainian), Ukraine | Bishop | 
| 23 Jan | 47.5 | Ordained Bishop | Pedro José Chávez de la Rosa † | Bishop of Arequipa, Peru | Bishop Emeritus | 
| 60.2 | Selected | Etienne-Charles de Loménie de Brienne † | Cardinal, Archbishop of Sens, France | 
| 27 Jan | 50.7 | Ordained Bishop | Franz Egon von Fürstenberg † | Titular Bishop of Derbe | Bishop of Hildesheim, Germany | 
| 3 Feb | 39.8 | Ordained Bishop | Henri de Chambre d’Urgons † | Titular Bishop of Oropus | Auxiliary Bishop of Metz, France | 
| 43.9 | Ordained Priest | Karl Theodor von Dalberg † | Priest of Worms, Germany | Bishop of Konstanz {Constance}, Germany | 
| 43.9 | Installed | François de Fontanges † | Archbishop of Bourges, France | Bishop of Autun, France | 
| 6 Feb |  | Died | Parsegh Petros IV Avkadian † | Patriarch of Cilicia (Armenian), Lebanon | 
| 8 Feb |  | Born | Robert St-Léger, S.J. † |  | Vicar Apostolic Emeritus of Bengal, India | 
| 11 Feb |  | Born | Anton Gottfried Claessen † |  | Auxiliary Bishop of Köln {Cologne}, Germany | 
| 16 Feb | 22.6 | Ordained Priest | Giovanni Battista Accusani † | Priest | Bishop of Vigevano, Italy | 
| 24.3 | Ordained Priest | Giovanni Corcione † | Priest | Bishop of Bova, Italy | 
| 24.3 | Ordained Priest | Angelo Pietro (Andelo Petar) Galli † | Priest of Corfù, Greece | Bishop of Hvar (Lesina), Croatia | 
| 72.8 | Retired | Paolo Francesco Giustiniani, O.F.M. Cap. † | Bishop of Treviso, Italy | Bishop Emeritus | 
| 23.5 | Ordained Priest | Bartholomeu de Martyribus Maya, O.C.D. † | Priest of Order of Discalced Carmelites | Prelate of Mozambico | 
| 18 Feb | 61.2 | Died | András Ország † | Auxiliary Bishop of Pécs, Hungary | 
| 19 Feb | 76.0 | Died | Manuel de Alday y Aspée † | Bishop of Santiago de Chile | 
| 20 Feb |  | Born | Giuseppe Cosenza † |  | Cardinal, Archbishop of Capua, Italy | 
| 66.1 | Died | Filiberto Pascali (Pascale) † | Bishop of Telese o Cerreto Sannita, Italy | 
| 24 Feb |  | Born | Francesco de’ Marchesi Canali † |  | Bishop of Pesaro, Italy | 
| 29 Feb | 69.3 | Died | Pasquale Acquaviva d’Aragona † | Cardinal, Cardinal-Deacon of Sant’Eustachio | 
|  | Born | Louis-François-Auguste de Rohan Chabot † |  | Cardinal, Archbishop of Besançon, France | 
| 4 Mar | 74.7 | Died | Antonio Eugenio Visconti † | Cardinal, Prefect of the Congregation for Indulgences and Relics | 
| 7 Mar | 47.9 | Appointed | José Nicolau de Azevedo Coutinho Gentil † | Prelate of Goiás, Brazil | Prelate Emeritus | 
|  | Born | Adriano Fieschi † |  | Cardinal, Cardinal-Priest of Santa Maria della Vittoria | 
| 8 Mar | 25.3 | Ordained Priest | Gilbert-Paul Aragonès d’Orcet † | Priest | Bishop of Langres, France | 
| 24.1 | Ordained Priest | Jean-François-Étienne Borderies † | Priest | Bishop of Versailles, France | 
| 23.0 | Ordained Priest | Francisco Ferreira de Azevedo † | Priest | Bishop of Goiás, Brazil | 
| 60.4 | Resigned | Etienne-Charles de Loménie de Brienne † | Archbishop of Toulouse, France | Cardinal, Archbishop of Sens, France | 
| 24.3 | Ordained Priest | Alexandre-Charles-Louis-Rose de Lostanges-Saint-Alvère † | Priest | Bishop of Périgueux, France | 
| 62.2 | Resigned | Jose Martinez Palomino y Lopez de Lorena † | Bishop of Chiapas (Ciudad Real de Chiapas), México | Bishop Emeritus | 
| 23.1 | Ordained Deacon | George Thomas Plunkett † | Deacon of Order of Friars Preachers | Bishop of Elphin, Ireland | 
| 9 Mar | 41.8 | Selected | Louis-Mathias-Joseph de Barral † | Coadjutor Bishop of Troyes, France | Archbishop Emeritus of Tours, France | 
| 10 Mar | 63.2 | Appointed | Vincenzo Maria Altieri † | Cardinal-Deacon of Sant’Eustachio |  | 
| 56.7 | Appointed | Fernando Cardiñanos, O.F.M. Obs. † | Bishop of Comayagua, Honduras | 
| 37.1 | Confirmed | Alexandre-Henri de Chauvigny de Blot † | Bishop of Lombez, France | 
| 44.0 | Appointed | Karl Theodor von Dalberg † | Titular Archbishop of Tarsus | Bishop of Konstanz {Constance}, Germany | 
| 44.0 | Confirmed | Karl Theodor von Dalberg † | Coadjutor Bishop of Worms, Germany | Bishop of Konstanz {Constance}, Germany | 
| 44.0 | Confirmed | Karl Theodor von Dalberg † | Coadjutor Archbishop of Mainz, Germany | Bishop of Konstanz {Constance}, Germany | 
| 54.4 | Confirmed | József Fengler, Sch. P. † | Bishop of Győr (Raab), Hungary | 
| 73.1 | Installed | Raniero Finocchietti † | Cardinal-Deacon of Sant’Angelo in Pescheria | Cardinal, Cardinal-Deacon of Sant’Agata de’ Goti | 
| 43.5 | Confirmed | Ferenc Fuchs † | Bishop of Nitra, Slovakia | Archbishop of Eger, Hungary | 
| 72.9 | Appointed | Paolo Francesco Giustiniani, O.F.M. Cap. † | Titular Archbishop of Chalcedon | Bishop Emeritus of Treviso, Italy | 
| 53.7 | Appointed | José Joaquín Granados y Gálvez, O.F.M. Obs. † | Bishop of Sonora, México | Bishop of Durango, México | 
| 62.6 | Appointed | Santiago José Hechavarría y Elguesúa † | Bishop of Tlaxcala (Puebla de los Angeles), México | 
| 65.4 | Confirmed | Franz Xaver Kalatay † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania | 
| 51.2 | Confirmed | László Kollonitz † | Archbishop of Kalocsa, Hungary | 
| 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 {Lisbon}, Portugal | 
| 55.4 | Confirmed | Ángel Mariano Moscoso Pérez y Oblitas † | Bishop of Córdoba (Tucumán), Argentina | 
| 59.4 | Confirmed | Niccolò Angelo Sagredo † | Archbishop of Udine, Italy | Bishop of Torcello (Turris), Italy | 
| 56.3 | Confirmed | Ferenc Xavier Splényi † | Bishop of Vác, Hungary | 
| 35.2 | Confirmed | Maksimilijan Verhovácz (Vrhovac) † | Bishop of Zagreb (Agram), Croatia | 
| 15 Mar | 60.8 | Died | Ludwig Joseph von Welden auf Laubheim und Hohenaltingen † | Bishop of Freising, Germany | 
| 17 Mar | 56.9 | Died | Ernest Johann Nepomuk von Herberstein (Herbstein) † | Bishop of Linz, Austria | 
| 19 Mar | 49.6 | Selected | Michele Antonio Aymerich de Villamar † | Bishop of Ales e Terralba, Italy | 
| 61.6 | Selected | Pietro Antonio Craveri, O.F.M. Obs. † | Bishop of Galtelli-Nuoro (Galtelly Nori), Italy | 
| 27 Mar | 70.7 | Died | Francesco Maria Colombani † | Bishop of Bertinoro, Italy | 
| 28 Mar |  | Born | Gaetano Baluffi † |  | Cardinal, Bishop of Imola, Italy | 
| 22.1 | Ordained Priest | Jean-Paul-Gaston de Pins † | Priest | Apostolic Administrator Emeritus of Lyon (-Vienne), France | 
| 30 Mar | 37.2 | Ordained Bishop | Alexandre-Henri de Chauvigny de Blot † | Bishop of Lombez, France | 
|  | Died | Théodose V (Athanase) Dahan, B.C. † | Patriarch of Antiochia {Antioch} (Melkite Greek), Syria | 
| 44.0 | Selected | François de Fontanges † | Archbishop of Toulouse, France | Bishop of Autun, France | 
|  | Born | Giuseppe Carlo Sanguettola † |  | Bishop of Crema, Italy | 
| 31 Mar | 56.0 | Died | Benedetto Cervone † | Bishop of L’Aquila, Italy | 
| Apr | 38.2 | Ordained Bishop | Thomas O’Connor † | Bishop of Achonry, Ireland | 
| 6 Apr | 47.4 | Selected | 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 | 
| 46.1 | Confirmed | Michael Léopold Brigido von Marenfels und Bresoviz † | Archbishop of Ljubljana, Slovenia | Bishop of Spiš, Slovakia | 
| 61.6 | Confirmed | Pietro Antonio Craveri, O.F.M. Obs. † | Bishop of Galtelli-Nuoro (Galtelly Nori), Italy | 
| 53.0 | Appointed | František de Paula Hrzán z Harasova † | Cardinal-Priest of Santa Croce in Gerusalemme | Cardinal, Bishop of Szombathely, Hungary | 
| 48.9 | Appointed | Bernardino Marin, C.R.L. † | Bishop of Treviso, Italy | 
| 62.5 | Elevated to Cardinal | José Francisco Miguel António de Mendonça Valdereis † | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal | 
| 39.6 | Confirmed | Ján Révay † | Bishop of Spiš, Slovakia | 
| 8 Apr | 47.9 | Selected | Jozafat Bastašić (Bastasyc), O.S.B.M. † | Bishop of Križevci (Kreutz) (Križevci), Croatia | 
|  | Born | László Bémer de Bezdéd et Kisbáka † |  | Bishop Emeritus of Oradea Mare {Gran Varadino, Nagyvárad}, Romania | 
| 41.4 | Selected | Joannes Baptist Jesich † | Coadjutor Bishop of Senj (-Modruš), Croatia | Bishop | 
| 9 Apr |  | Born | Mariano Venturi † |  | Bishop of Veroli, Italy | 
| 13 Apr | 54.5 | Ordained Bishop | József Fengler, Sch. P. † | Bishop of Győr (Raab), Hungary | 
| 43.6 | Ordained Bishop | Ferenc Fuchs † | Bishop of Nitra, Slovakia | Archbishop of Eger, Hungary | 
| 42.2 | Ordained Bishop | Manoel de Jesus, O.E.S.A. † | Bishop of São Tomé of Meliapore, India | 
| 49.0 | Ordained Bishop | Bernardino Marin, C.R.L. † | Bishop of Treviso, Italy | 
| 59.5 | Ordained Bishop | Niccolò Angelo Sagredo † | Archbishop of Udine, Italy | Bishop of Torcello (Turris), Italy | 
| 56.3 | Ordained Bishop | Ferenc Xavier Splényi † | Bishop of Vác, Hungary | 
| 35.3 | Ordained Bishop | Maksimilijan Verhovácz (Vrhovac) † | Bishop of Zagreb (Agram), Croatia | 
| 37.2 | Appointed | François-Marie-Fortuné de Vintimille † | Bishop of Carcassonne, France | 
| 17 Apr | 48.9 | Installed | Pierre de Séguiran † | Bishop of Nevers, France | 
| 19 Apr |  | Born | Gabriele Ventriglia † |  | Bishop of Caiazzo, Italy | 
| 21 Apr |  | Appointed | Mathieu Righet † | Vicar Apostolic of Alexandria {Alessandria} (Coptic), Egypt | 
| 24 Apr | 54.5 | Selected | Athanase IV Jaouhar (Jawhar) † | Patriarch of Antiochia {Antioch} (Melkite Greek), Syria | 
| 27 Apr | 46.2 | Ordained Bishop | Michael Léopold Brigido von Marenfels und Bresoviz † | Bishop of Ljubljana, Slovenia | Bishop of Spiš, Slovakia | 
| 65.5 | Ordained Bishop | Franz Xaver Kalatay † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania | 
| 30 Apr | 68.2 | Died | Melchior Jan Kochnowski † | Auxiliary Bishop of Chełm, Poland | 
| 2 May | 74.7 | Died | Antoine de Malvin de Montazet † | Archbishop of Lyon, France | 
| 76.2 | Died | Francesco Pettorelli Lalatta † | Bishop of Parma, Italy | 
| 5 May | 54.6 | Appointed | Athanase IV Jaouhar (Jawhar) † | Bishop of Damas (Melkite Greek), Syria | Patriarch of Antiochia {Antioch} (Melkite Greek), Syria | 
| 54.6 | Confirmed | Athanase IV Jaouhar (Jawhar) † | Patriarch of Antiochia {Antioch} (Melkite Greek), Syria | 
| 7 May | 41.3 | Selected | Pietro Arborio di Gattinara † | Bishop of Asti, Italy | 
| 9 May |  | Born | Francesco Iavarone † |  | Bishop of Sant’Agata de’ Goti, Italy | 
| 11 May | 78.5 | Died | Giuseppe Bellotti † | Bishop of Massa Lubrense, Italy | 
|  | Elected | Gregory Petros V Kupelian † | Patriarch of Cilicia (Armenian), Lebanon | 
| 12 May | 40.1 | Selected | Joseph Anton Gall † | Bishop of Linz, Austria | 
| 53.9 | Selected | Yves-Alexandre de Marbeuf † | Archbishop of Lyon, France | 
| 17 May | 27.3 | Ordained Priest | Maria Nicolaus Silvester Guillon † | Priest | Titular Bishop of Marocco o Marruecos, Titular Sees | 
| 47.5 | Ordained Priest | Joseph Christian Franz de Paula zu Hohenlohe-Waldenburg-Bartenstein † | Priest | Bishop of Wrocław (Breslau), Poland | 
| 22.3 | Ordained Deacon | Johann Martin Manl † | Deacon of Mainz, Germany | Bishop of Eichstätt, Germany | 
| 23.3 | Ordained Priest | George Thomas Plunkett † | Priest of Order of Friars Preachers | Bishop of Elphin, Ireland | 
| 20 May |  | Born | John Briggs † |  | Bishop Emeritus of Beverley, England, Great Britain | 
| 26 May | 48.5 | Selected | Max Polykarp von Törring-Jettenbach † | Bishop of Freising, Germany | Bishop of Regensburg, Germany | 
| 28 May | 81.6 | Died | Louis-Sextius de Jarente de La Bruyère † | Bishop of Orléans, France | 
| 41.9 | Succeeded | Louis-François-Alexandre de Jarente de Senas d’Orgeval † | Bishop of Orléans, France | Bishop Emeritus | 
| 1 Jun | 60.6 | Ordained Bishop | Eustaquio Azara, O.S.B. † | Bishop of Ibiza, Spain | Bishop of Barcelona, Spain | 
| 24.5 | Ordained Priest | Benedict Joseph Flaget, P.S.S. † | Priest of Society of Priests of Saint Sulpice | Bishop of Louisville, Kentucky, USA | 
| 3 Jun |  | Born | Buenaventura Codina Augerolas, C.M. † |  | Bishop of Islas Canarias {Canary Islands}, Spain | 
| 4 Jun | 49.2 | Succeeded | Jean-François Hubert † | Bishop of Québec, Canada | Bishop Emeritus | 
| 78.1 | Died | Louis-Philippe-François Mariauchau d’Esgly † | Bishop of Québec, Canada | 
| 6 Jun | 34.4 | Appointed | Tobias Georg Ghebragzer † | Titular Archbishop of Adulis | 
| 7 Jun | 42.2 | Selected | Ángel Velarde y Bustamante † | Bishop of Popayán, Colombia | 
| 10 Jun | 38.4 | Appointed | John Cruise † | Bishop of Ardagh (and Clonmacnois), Ireland | 
| 38.4 | Appointed | John Cruise † | Administrator of Clonmacnoise, Ireland | Bishop of Ardagh (and Clonmacnois), Ireland | 
| 12 Jun | 49.3 | Installed | Jean-François Hubert † | Bishop of Québec, Canada | Bishop Emeritus | 
| 15 Jun | 76.4 | Died | Francesco Antonio Bonaventura † | Bishop of Nusco, Italy | 
| 18 Jun | 44.3 | Selected | Karl Theodor von Dalberg † | Coadjutor Bishop of Konstanz {Constance}, Germany | Bishop | 
|  | Born | Nicolás Luis Lezo y Garro † |  | Titular Archbishop of Seleucia in Isauria | 
| 24 Jun | 89.2 | Died | Stefano dell’Oglio † | Bishop of Kotor (Cattaro), Montenegro | 
| 34.4 | Ordained Bishop | Tobias Georg Ghebragzer † | Titular Archbishop of Adulis | 
| 26 Jun |  | Born | Henry Hughes, O.F.M. Ref. † |  | Vicar Apostolic Emeritus of Gibraltar |