| Date | Age | Event | Bishop | Title | Current Title | 
| unknown | 17.3 | Professed | Wilhelm von Alhaus, O.S.C. † | Member of Canons Regular of the Order of the Holy Cross | Auxiliary Bishop of Münster, Germany | 
 | Born | Benigno Avenati, B. † |  | Priest of Clerics Regular of St. Paul | 
| 30.7 | Professed | Juan Tomás de Boxadors y Sureda de San Martín, O.P. † | Member of Order of Friars Preachers | Cardinal, Cardinal-Priest of San Sisto | 
 | Ordained Bishop | Stephen Dowdall † | Bishop of Kildare and Leighlin, Ireland | 
| 30.8 | Ordained Bishop | Samuel Głowiński † | Titular Bishop of Hebron | Auxiliary Bishop of Lviv, Ukraine | 
 | Born | Iraklij (Herakliusz) Listovskyj (Lissowski), O.S.B.M. † |  | Archbishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine | 
 | Born | Gjergj Engjëll Radovani † |  | Archbishop of Bar (Antivari), Montenegro | 
| 3 Jan |  | Born | Stefan Wojciech von Łubieński † |  | Auxiliary Bishop of Gniezno, Poland | 
| 6 Jan | 25.6 | Ordained Priest | Giuseppe Tomaso de Rossi † | Priest | Bishop of Alessandria (della Paglia), Italy | 
| 8 Jan | 53.9 | Died | José Marín y Ibáñez † | Bishop of Almería, Spain | 
| 10 Jan | 24.6 | Ordained Deacon | Jan Szemiot † | Deacon | Titular Bishop of Loryma | 
| 16 Jan | 60.6 | Died | Johann Anton Wallreuther † | Auxiliary Bishop of Worms, Germany | 
| 17 Jan | 23.1 | Ordained Priest | Anton Maria Martin von Stegner † | Priest of Wien {Vienna}, Austria | Auxiliary Bishop | 
| 50.3 | Died | Ernst Friedrich von Twickel † | Auxiliary Bishop of Hildesheim, Germany | 
| 18 Jan | 47.1 | Died | Stephanus Ladislaus Luzénszky † | Titular Bishop of Thyatira | 
| 20 Jan | 61.0 | Confirmed | Benito Crespo y Monroy, O.S. † | Bishop of Tlaxcala (Puebla de los Angeles), México | 
| 57.5 | Appointed | Ottavio Gasparini † | Bishop of Città di Castello, Italy | 
| 37.6 | Appointed | Giuseppe di Marsciano † | Bishop of Orvieto, Italy | 
| 62.1 | Appointed | Álvaro Eugenio de Mendoza Caamaño y Sotomayor † | Cardinal, Patriarch of West Indies, Spain | 
| 62.1 | Appointed | Álvaro Eugenio de Mendoza Caamaño y Sotomayor † | Titular Archbishop of Pharsalus | Cardinal, Patriarch of West Indies, Spain | 
| 46.0 | Appointed | Manuel de Ocio y Campo † | Bishop of Cebu, Philippines | 
| 44.9 | Confirmed | Nicola Paolo Pandolfelli † | Bishop of Mottola (Motula), Italy | 
| 58.8 | Appointed | Felipe de los Tueros Huerta † | Archbishop of Granada, Spain | 
| 24 Jan | 76.0 | Died | Louis Milon † | Bishop of Condom, France | 
| 43.7 | Ordained Bishop | Christoph Nebel † | Titular Bishop of Capharnaum | Auxiliary Bishop of Mainz, Germany | 
| 25 Jan | 58.3 | Ordained Bishop | Andrés de Paredes y Armendáriz † | Bishop of Quito, Ecuador | 
| 64.8 | Died | Johann Baptist von Reinach-Hirzbach † | Coadjutor Bishop of Basel, Switzerland | 
| 26 Jan | 76.9 | Died | Alessandro Falconieri † | Cardinal, Cardinal-Deacon of Santa Maria della Scala | 
 | Born | Andrea Benedetto Ganassoni, O.S.B. † |  | Bishop of Feltre, Italy | 
| 75.0 | Died | Giovanni Battista Missiroli † | Bishop of Bertinoro, Italy | 
| 31 Jan |  | Born | Joseph Franz Anton von Auersperg † |  | Cardinal, Bishop of Passau, Germany | 
| 57.6 | Ordained Bishop | Ottavio Gasparini † | Bishop of Città di Castello, Italy | 
| 45.0 | Ordained Bishop | Nicola Paolo Pandolfelli † | Bishop of Mottola (Motula), Italy | 
| 2 Feb |  | Born | Jean-Louis d’Usson de Bonac † |  | Bishop Emeritus of Agen, France | 
| 37.6 | Ordained Bishop | Giuseppe di Marsciano † | Bishop of Orvieto, Italy | 
| 9 Feb | 67.3 | Died | Diego Astorga y Céspedes † | Cardinal, Archbishop of Toledo, Spain | 
| 15 Feb | 57.1 | Appointed | Diomedes Bianconi † | Bishop of Guardialfiera (Guardia), Italy | 
| 39.8 | Appointed | Francesco Guidi † | Archbishop of Pisa, Italy | 
| 35.9 | Confirmed | Pierre-Jules-César de Rochechouard-Montigny † | Bishop of Évreux, France | Bishop Emeritus of Bayeux, France | 
| 38.4 | Confirmed | Claude de Rouvroy de Saint-Simon † | Bishop of Metz, France | 
| 63.3 | Appointed | Ladislav Szörényi † | Bishop of Sirmio (Srijem; Sirmium), Croatia | 
| 45.1 | Appointed | Leone Luca Vita † | Bishop of Oppido Mamertina, Italy | 
| 18 Feb | 63.1 | Resigned | Giuseppe Maria Perrimezzi, O.M. † | Bishop of Oppido Mamertina, Italy | Bishop Emeritus | 
| 48.6 | Selected | Juan Bravo del Rivero y Correa † | Bishop of Santiago de Chile | Bishop of Arequipa, Peru | 
| 63.1 | Selected | José Manuel de Sarricolea y Olea † | Bishop of Cuzco, Peru | 
| 19 Feb |  | Born | Francisco Antonio Cebrián y Valdá † |  | Cardinal, Patriarch of West Indies, Spain | 
| 20 Feb |  | Born | Andrés Aguiar Caamaño † |  | Bishop of Mondoñedo, Spain | 
| 21 Feb | 57.1 | Ordained Bishop | Diomedes Bianconi † | Bishop of Guardialfiera (Guardia), Italy | 
| 45.1 | Ordained Bishop | Leone Luca Vita † | Bishop of Oppido Mamertina, Italy | 
| 26 Feb | 36.7 | Selected | Stanisław Rajmund Jezierski, O.P. † | Bishop of Bacău, Romania | 
| 46.6 | Died | Tomasz Załęski, O.P. † | Bishop-Elect of Bacău, Romania | 
| Mar | 64.0 | Died | Domenico Rossi † | Bishop of Vulturara e Montecorvino, Italy | 
| 3 Mar | 53.1 | Selected | Giacomo Bonanno, C.R. † | Bishop of Patti, Italy | Archbishop of Monreale, Italy | 
| 7 Mar | 36.3 | Ordained Bishop | Claude-Antoine de Choiseul-Beaupré † | Bishop of Chalons-sur-Marne, France | 
| 40.0 | Ordained Bishop | Johann Joseph von Wratislaw von Mitrowitz † | Bishop of Hradec Králové, Czechia | 
| 9 Mar | 63.1 | Selected | John Linegar † | Archbishop of Dublin, Ireland | 
| 10 Mar | 48.9 | Died | Ferdinando Agostino Bernabei, O.P. † | Bishop of Osimo e Cingoli, Italy | 
| 12 Mar | 61.5 | Succeeded | Benjamin Petre, O.S.B. † | Vicar Apostolic of London District, England, Great Britain | 
| 19 Mar | 26.1 | Ordained Deacon | Johann Friedrich von Lasser † | Deacon of Mainz, Germany | Auxiliary Bishop | 
| 20 Mar | 22.9 | Ordained Deacon | Jan-Robert Caïmo † | Deacon | Bishop of Brugge {Bruges}, Belgium | 
| 63.2 | Confirmed | John Linegar † | Archbishop of Dublin, Ireland | 
| 36.1 | Ordained Priest | Pietro Antonio Raimondi † | Priest | Bishop of Capaccio, Italy | 
| 21 Mar | 36.0 | Ordained Bishop | Pierre-Jules-César de Rochechouard-Montigny † | Bishop of Évreux, France | Bishop Emeritus of Bayeux, France | 
| 22 Mar | 92.2 | Died | Bonaventure Joseph Giffard † | Vicar Apostolic of London District, England, Great Britain | 
| 23 Mar |  | Born | Matthew Gibson † |  | Vicar Apostolic of Northern District, England, Great Britain | 
| 24 Mar | 65.5 | Elevated to Cardinal | Pompeio Aldrovandi † | Cardinal, Bishop of Corneto (Tarquinia) e Montefiascone, Italy | 
| 57.8 | Elevated to Cardinal | Serafino Cenci † | Cardinal, Archbishop of Benevento, Italy | 
| 51.1 | Confirmed | Louis-François-Gabriel d’Orléans de La Motte † | Bishop of Amiens, France | 
| 44.4 | Appointed | Gaetano Calvani † | Bishop of Bertinoro, Italy | Bishop Emeritus | 
| 63.4 | Elevated to Cardinal | Giacomo Lanfredini † | Cardinal, Bishop Emeritus of Osimo e Cingoli, Italy | 
| 41.6 | Appointed | Ramón Nogués † | Bishop of Jaca, Spain | 
| 63.2 | Appointed | Giuseppe Maria Perrimezzi, O.M. † | Titular Archbishop of Bostra | Bishop Emeritus of Oppido Mamertina, Italy | 
| 57.4 | Elevated to Cardinal | Pietro Maria Pieri, O.S.M. † | Cardinal, Cardinal-Priest of San Giovanni a Porta Latina | 
| 55.9 | Appointed | Francisco Salgado Quirago † | Bishop of Guadix, Spain | 
| 27 Mar | 70.4 | Appointed | Tommaso Cervini † | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine | 
| 34.7 | Appointed | Franz Joseph Anton von Hahn † | Auxiliary Bishop of Bamberg, Germany | 
| 34.7 | Appointed | Franz Joseph Anton von Hahn † | Titular Bishop of Arad | Auxiliary Bishop of Bamberg, Germany | 
| 63.4 | Appointed | Giacomo Lanfredini † | Bishop of Osimo e Cingoli, Italy | Cardinal, Bishop Emeritus | 
| Apr |  | Born | Nicolas Champenois, M.E.P. † |  | Superior of Karnatic Mission / Pondicherry, India | 
| 1 Apr |  | Born | Scipione Borghèse † |  | Cardinal, Prefect Emeritus of the Prefecture of the Papal Household | 
| 4 Apr | 63.4 | Ordained Bishop | Giacomo Lanfredini † | Bishop of Osimo e Cingoli, Italy | Cardinal, Bishop Emeritus | 
| 63.4 | Ordained Bishop | Ladislav Szörényi † | Bishop of Sirmio (Srijem; Sirmium), Croatia | 
| 5 Apr | 28.0 | Ordained Deacon | Józef Tadeusz Kierski † | Deacon | Bishop of Przemyśl, Poland | 
| 6 Apr | 28.0 | Ordained Priest | Józef Tadeusz Kierski † | Priest | Bishop of Przemyśl, Poland | 
| 7 Apr |  | Born | [Jean-Baptiste Volfius] † |  | Bishop Emeritus of [Côte-d'Or (Constitutional), France] | 
| 10 Apr | 75.8 | Resigned | Pier Marcellino Corradini † | Cardinal-Priest of San Giovanni a Porta Latina | Cardinal, Cardinal-Bishop of Frascati | 
| 25.7 | Ordained Priest | Luigi Satta † | Priest | Bishop of Iglesias, Italy | 
| 24.8 | Ordained Priest | Jan Szemiot † | Priest | Titular Bishop of Loryma | 
| 25.6 | Ordained Priest | Domenico Volpe † | Priest | Bishop of Sant’Angelo dei Lombardi e Bisaccia, Italy | 
| 11 Apr | 44.4 | Ordained Bishop | Gaetano Calvani † | Bishop of Bertinoro, Italy | Bishop Emeritus | 
| 12 Apr | 65.5 | Installed | Pompeio Aldrovandi † | Cardinal-Priest of Sant’Eusebio | Cardinal, Bishop of Corneto (Tarquinia) e Montefiascone, Italy | 
| 63.4 | Installed | Giacomo Lanfredini † | Cardinal-Deacon of Santa Maria in Portico (Campitelli) | Cardinal, Bishop Emeritus of Osimo e Cingoli, Italy | 
| 40.8 | Appointed | Christian Albert Anton von Merle † | Auxiliary Bishop of Worms, Germany | 
| 40.8 | Appointed | Christian Albert Anton von Merle † | Titular Bishop of Sinope | Auxiliary Bishop of Worms, Germany | 
| 57.5 | Installed | Pietro Maria Pieri, O.S.M. † | Cardinal, Cardinal-Priest of San Giovanni a Porta Latina | 
| 15 Apr | 82.2 | Resigned | Gabriel de Cosnac † | Bishop of Die, France | Bishop Emeritus | 
| 16 Apr | 22.4 | Ordained Priest | József Károly Zbiško † | Priest of Esztergom, Hungary | Bishop of Knin (Tinin), Croatia | 
| 21 Apr |  | Born | Antonio Sentmenat y Castellá † |  | Cardinal, Patriarch of West Indies, Spain | 
| 23 Apr | 76.4 | Died | Michel-Gabriel Rossillon de Bernex † | Bishop of Genève {Geneva}, Switzerland | 
| 24 Apr | 32.3 | Ordained Priest | Paul Godefroid de Berlo de Franc-Douaire † | Priest | Bishop of Namur {Namen}, Belgium | 
| 24.8 | Ordained Priest | Filippo Mazzetti † | Priest | Bishop of Fossano, Italy | 
| 26 Apr | 60.3 | Died | Alexander Antoni Pleszowice Fredro † | Bishop of Przemyśl, Poland | 
| 21.4 | Ordained Deacon | Ján Gustíni-Zubrohlavský (Gusztinyi) † | Deacon | Bishop of Nitra, Slovakia | 
 | Born | Francisco Veyán y Mola † |  | Bishop of Vic, Spain | 
| 27 Apr | 41.4 | Ordained Deacon | Marcello Filomarini † | Deacon | Bishop of Mileto, Italy | 
| 29 Apr | 36.7 | Selected | Francisco Pablo Matos y Coronado † | Bishop of Yucatán (Mérida), México | Bishop of Michoacán, México | 
| May | 83.0 | Died | Sebastiano Pompilio Bonaventura † | Bishop of Corneto (Tarquinia) e Montefiascone, Italy | 
| 63.6 | Ordained Bishop | Bartolomé San Martín y Uribe † | Bishop of Palencia, Spain | 
| 1 May | 69.2 | Died | Franz Joseph Supersaxo † | Bishop of Sion {Sitten}, Switzerland | 
| 2 May | 41.4 | Ordained Priest | Marcello Filomarini † | Priest | Bishop of Mileto, Italy | 
| 5 May | 53.3 | Confirmed | Giacomo Bonanno, C.R. † | Bishop of Patti, Italy | Archbishop of Monreale, Italy | 
| 55.3 | Appointed | Gaspar de Molina y Oviedo, O.E.S.A. † | Cardinal, Bishop of Málaga, Spain | 
| 32.2 | Confirmed | Franz Anton von Engel in Wagrain † | Bishop of Beograd (-Smederevo), Serbia | Bishop of Csanád, Hungary | 
| 59.3 | Appointed | Diego González Toro y Villalobos † | Bishop of Cuenca, Spain | 
| 56.4 | Appointed | Carlo Filippo Incontri † | Bishop of Arezzo, Italy | 
| 46.7 | Appointed | Rizzardo Isolani † | Bishop of Senigallia, Italy | 
| 63.4 | Confirmed | José Manuel de Sarricolea y Olea † | Bishop of Cuzco, Peru | 
| 9 May |  | Born | François de Bonal (d’Aujac) † |  | Bishop of Clermont, France | 
| 46.7 | Ordained Bishop | Rizzardo Isolani † | Bishop of Senigallia, Italy | 
| 62.4 | Ordained Bishop | Álvaro Eugenio de Mendoza Caamaño y Sotomayor † | Titular Archbishop of Pharsalus | Cardinal, Patriarch of West Indies, Spain | 
| 12 May | 74.5 | Died | Fabrizio Pignatelli † | Bishop of Lecce, Italy | 
| 13 May |  | Born | Luca Nicola de Luca † |  | Bishop Emeritus of Trivento, Italy | 
| 16 May | 49.7 | Died | Antonio Maria Ghislieri † | Titular Bishop of Azotus | 
| 56.4 | Ordained Bishop | Carlo Filippo Incontri † | Bishop of Arezzo, Italy | 
| 17 May |  | Born | Yves-Alexandre de Marbeuf † |  | Archbishop of Lyon, France | 
| 18 May | 50.1 | Selected | Johann Joseph Anton Blatter † | Bishop of Sion {Sitten}, Switzerland | 
| 23 May | 53.3 | Ordained Bishop | Giacomo Bonanno, C.R. † | Bishop of Patti, Italy | Archbishop of Monreale, Italy | 
| 33.5 | Selected | Daniel-Joseph de Cosnac † | Bishop of Die, France | 
| 42.8 | Selected | Gilbert-Gaspard de Montmorin de Saint-Hérem de La Chassaigne † | Bishop of Langres, France | 
| 24 May |  | Born | Diego Melo Portugal, O.E.S.A. † |  | Bishop of Jaén, Spain | 
| 29 May | 23.1 | Ordained Deacon | Franz Anton Xaver von Scheben † | Deacon of Mainz, Germany | Auxiliary Bishop of Worms, Germany | 
| 30 May |  | Born | Léon-François-Ferdinand de Salignac de La Mothe-Fénelon † |  | Bishop Emeritus of Lombez, France | 
| 31 May |  | Born | Valentin Philipp Anton Schmidt † |  | Auxiliary Bishop of Speyer, Germany | 
| Jun | 43.4 | Died | Emmanuel Caranza † | Bishop of Syros (e Milos), Greece | 
| 2 Jun |  | Born | Francesco Antonio Duca † |  | Bishop of Castro di Puglia, Italy | 
| 6 Jun | 28.9 | Ordained Priest | Cesar Crescenzio de Angelis † | Priest | Bishop of Segni, Italy | 
| 56.1 | Ordained Bishop | Francisco Salgado Quirago † | Bishop of Guadix, Spain | 
 | Born | Cyprian Stecki † |  | Bishop of Lutsk and Ostroh (Ukrainian), Ukraine | 
| 8 Jun | 69.5 | Died | Andrés Cid de San Pedro Fernández, O. Cist. † | Bishop of Orense, Spain | 
| 11 Jun | 23.2 | Ordained Priest | Franz Anton Xaver von Scheben † | Priest of Mainz, Germany | Auxiliary Bishop of Worms, Germany | 
| 13 Jun | 57.6 | Ceased | Pietro Maria Pieri, O.S.M. † | Prior General of Order of Friar Servants of Mary | Cardinal, Cardinal-Priest of San Giovanni a Porta Latina | 
| 14 Jun | 23.0 | Ordained Priest | Tommaso Agostino de Simone † | Priest | Bishop of Montepeloso, Italy | 
| 19 Jun | 30.8 | Ordained Priest | Christophe de Beaumont du Repaire † | Priest | Archbishop of Paris, France | 
| 22.5 | Ordained Deacon | Franz Josef von Gondola, O.S.B. † | Deacon of Order of Saint Benedict | Vicar Apostolic of Nordic Missions, Germany | 
| 26.5 | Selected | Johann Franz Anton von Kevenhüller † | Bishop of Wiener Neustadt, Austria | Bishop Emeritus | 
| 24.4 | Ordained Priest | Giovanni Pergolini † | Priest | Bishop of Urbania e Sant’Angelo in Vado, Italy | 
| 23.0 | Ordained Priest | Ciriaco Vecchioni † | Priest | Bishop of Recanati e Loreto, Italy | 
| 20 Jun | 51.9 | Died | Mihály Frigyes Althan † | Cardinal, Bishop of Vác, Hungary | 
| 32.4 | Ordained Bishop | Franz Anton von Engel in Wagrain † | Bishop of Beograd (-Smederevo), Serbia | Bishop of Csanád, Hungary | 
| 48.0 | Ordained Bishop | José Francisco Martínez de Tejada y Díez de Velasco, O.F.M. † | Titular Bishop of Tricca | Bishop of Guadalajara, Jalisco, México | 
| 25 Jun |  | Born | José Joaquín Granados y Gálvez, O.F.M. Obs. † |  | Bishop of Durango, México | 
 | Born | Antonio Cayetano Maciel Calheiros † |  | Auxiliary Bishop of Lisboa {Lisbon}, Portugal | 
| 27 Jun | 32.4 | Selected | François de Crussol d’Uzès † | Bishop of Blois, France | Archbishop of Toulouse, France | 
| 29 Jun | 27.4 | Ordained Priest | Meletius Kovács † | Priest | Auxiliary Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania | 
| 30 Jun | 50.6 | Died | Pierre-Guillaume de La Vieuxville † | Bishop of Bayonne, France |