| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Elias al Gemayel † | Bishop of Tripoli del Libano {Tarabulus} (Maronite) |
| Born | François-Tristan de Cambon † | | Bishop of Mirepoix, France |
| Appointed | Joachim Ciechanowski † | Bishop of Pińsk-Turaŭ (Ukrainian), Belarus |
| 16.3 | Professed | Giacomo Costa, C.R. † | Member of Congregation of Clerics Regular | Bishop of Belluno, Italy |
| Born | Giovanni Battista Crispi † | | Archbishop of Naxos, Greece |
| 33.0 | Appointed | Florian Franciszek Hrebnicki, O.S.B.M. † | Archbishop of Polotsk (Połock)-Vitebsk (Ukrainian), Belarus | Archbishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine |
| Died | Porfiriusz Piotr Kulczycki † | Bishop of Pińsk-Turaŭ (Ukrainian), Belarus |
| 39.0 | Ordained Bishop | Basilio Matranga, O.S.B.I. † | Titular Bishop of Dionysias | Archbishop of Achrida (Ochrida), Bulgaria |
| 73.7 | Died | Domenico Morelli † | Bishop of Lucera, Italy |
| 52.0 | Ordained Bishop | Juan de Necolalde † | Bishop of Concepción, Chile | Archbishop of La Plata o Charcas, Bolivia |
| 69.0 | Resigned | Patrick O’Donnelly † | Bishop of Dromore, Ireland | Bishop Emeritus |
| Born | Philip Phillips † | | Archbishop of Tuam, Ireland |
| 41.0 | Ordained Bishop | Pedro Sanz de la Vega y Landaverde, O. de M. † | Bishop of Cebu, Philippines |
| 72.7 | Appointed | Fabrizio Spada † | Secretary of the Congregation for Universal Inquisition | Cardinal, Cardinal-Bishop of Palestrina |
| 62.0 | Died | Melchior Tasbasian † | Archbishop of Mardin (Armenian), Turkey | Bishop |
| 42.0 | Appointed | Ernst August von Braunschweig-Lüneburg † | Bishop of Osnabrück, Germany |
| Jan | 45.1 | Died | Georgius Patachich de Zajezda † | Bishop of Bosnia (Bosna, Diacovar, Diakovar), Croatia |
| 13 Jan | 61.8 | Appointed | Gabriel de Arregui y Gutiérrez, O.F.M. † | Bishop of Cuzco, Peru |
| 40.2 | Appointed | Lodovico Maria Pandolfini † | Bishop of Volterra, Italy |
| 59.0 | Appointed | Pietro Giovanni Battista Puccini † | Bishop of Cortona, Italy |
| 55.8 | Appointed | Andreas Riggio † | Titular Patriarch of Constantinople | Bishop of Catania, Italy |
| 40.0 | Appointed | João de Sousa de Castelo-Branco † | Bishop of Elvas, Portugal |
| 14 Jan | | Born | Dionys von Rost † | | Bishop of Chur, Switzerland |
| 18 Jan | | Born | Ádám Patačić de Zajezda † | | Archbishop of Kalocsa, Hungary |
| 19 Jan | 52.0 | Ordained Bishop | Antonio María Casiani, O.S.Bas. † | Bishop of Cartagena, Colombia |
| 36.1 | Ordained Bishop | Thomas Philip Wallrad d’Hénin-Létard d’Alsace-Boussut de Chimay † | Cardinal, Archbishop of Mechelen, Belgium |
| 51.4 | Ordained Bishop | Pedro de Fajardo (Guajardo), O.SS.T. † | Bishop of Buenos Aires, Argentina |
| 50.0 | Ordained Bishop | Juan Gómez de Neva y Frías † | Bishop of Popayán, Colombia | Bishop of Quito, Ecuador |
| 21 Jan | 56.0 | Selected | Léon de Beaumont † | Bishop of Saintes, France |
| 50.5 | Selected | Denis-François Bouthillier de Chavigny † | Archbishop of Sens, France |
| 22 Jan | | Born | Giovanni Battista Orsi † | | Bishop of Fano, Italy |
| 23 Jan | 80.0 | Died | Dominique d’Esclaux de Mesplez (Messelez) † | Bishop of Lescar, France |
| 24 Jan | 57.0 | Died | João Ribeiro, S.J. † | Archbishop of Cranganore (Angamala), India |
| 26 Jan | 59.0 | Ordained Bishop | Pietro Giovanni Battista Puccini † | Bishop of Cortona, Italy |
| 27 Jan | 33.0 | Ordained Bishop | Siméon VII Awad † | Bishop of Damas (Maronite), Syria | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| 56.5 | Selected | Joseph-Emmanuel de la Trémoille † | Bishop of Bayeux, France | Cardinal, Archbishop of Cambrai, France |
| 2 Feb | | Born | François de Révol † | | Bishop of Oloron (Oloron-Sainte-Marie), France |
| 5 Feb | | Born | Jean de la Croix de Castries-Mairargues † | | Bishop of Vabres, France |
| 57.2 | Installed | Niccolò Caracciolo † | Cardinal-Priest of Santi Silvestro e Martino ai Monti | Cardinal, Archbishop of Capua, Italy |
| 48.8 | Installed | Carlo Maria Marini † | Cardinal-Deacon of Santa Maria in Aquiro | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
| 70.4 | Installed | Ferdinando Nuzzi † | Cardinal-Priest of Santa Pudenziana | Cardinal, Bishop of Orvieto, Italy |
| 57.1 | Installed | Giambattista Patrizi † | Cardinal, Cardinal-Priest of Santi Quattro Coronati |
| 50.0 | Appointed | Tomás José Ruiz Montes † | Titular Archbishop of Seleucia in Isauria | Bishop of Cartagena (en España) |
| 60.3 | Installed | Bernardino Scotti † | Cardinal, Cardinal-Priest of San Pietro in Montorio |
| 40.3 | Appointed | Giovanni Soffietti, C.R.M. † | Bishop of Chioggia, Italy | Bishop of Adria, Italy |
| 9 Feb | 50.0 | Ordained Bishop | Tomás José Ruiz Montes † | Titular Archbishop of Seleucia in Isauria | Bishop of Cartagena (en España) |
| 40.3 | Ordained Bishop | Giovanni Soffietti, C.R.M. † | Bishop of Chioggia, Italy | Bishop of Adria, Italy |
| 16 Feb | 16.0 | Professed | Angelo Longo, O.S.B. † | Member of Order of Saint Benedict | Bishop of Teano, Italy |
| 20 Feb | 51.5 | Selected | Franz Ludwig am Rhein zu Neuburg † | Archbishop of Trier, Germany | Archbishop-Elect of Mainz, Germany |
| 24 Feb | 59.1 | Died | Guillaume Tual † | Auxiliary Bishop of Strasbourg, France |
| 25 Feb | 86.1 | Died | Paul-Louis-Philippe de Lézay de Lusignan † | Bishop of Rodez, France |
| 22.9 | Ordained Priest | Bartolomeo Antonio Passi † | Priest of Trento, Italy | Auxiliary Bishop |
| 26 Feb | 91.1 | Died | François de Barthélemy de Gramont de Lanta † | Bishop of Saint-Papoul, France |
| 2 Mar | 51.2 | Selected | Jacques-Bénigne Bossuet † | Bishop of Troyes, France | Bishop Emeritus |
| 72.1 | Died | Giovanni Fontana † | Bishop of Cesena, Italy |
| 65.1 | Selected | Martin de La Cassagne † | Bishop of Lescar, France |
| 3 Mar | 64.0 | Died | Andrés Orueta Barasorda † | Bishop of Valladolid, Spain |
| 7 Mar | 25.1 | Ordained Deacon | Emmanuel Caranza † | Deacon | Bishop of Syros (e Milos), Greece |
| 29.0 | Ordained Deacon | Johann Gottfried Groß von Trockau † | Deacon of Eichstätt, Germany | Auxiliary Bishop |
| 8 Mar | 40.4 | Ordained Bishop | Lodovico Maria Pandolfini † | Bishop of Volterra, Italy |
| 9 Mar | 24.4 | Ordained Deacon | Richard Challoner † | Deacon of London District, England, Great Britain | Vicar Apostolic |
| 42.3 | Installed | Antonio Monroy y Meneses, O. de M. † | Bishop of Santa Marta, Colombia | Bishop Emeritus |
| 14 Mar | 33.2 | Ordained Bishop | Florian Franciszek Hrebnicki, O.S.B.M. † | Archbishop of Polotsk (Połock)-Vitebsk (Ukrainian), Belarus | Archbishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine |
| 15 Mar | 62.2 | Died | François d’Argouges † | Bishop of Vannes, France |
| 71.3 | Died | Franz Ferdinand von Rummel † | Bishop of Wien, Austria |
| 40.1 | Ordained Bishop | João de Sousa de Castelo-Branco † | Bishop of Elvas, Portugal |
| 18 Mar | 52.2 | Appointed | Thomas (a Sestri) Bottaro, O.P. † | Coadjutor Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam | Vicar Apostolic |
| 52.2 | Appointed | Thomas (a Sestri) Bottaro, O.P. † | Titular Bishop of Nyssa | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 19 Mar | | Born | Michel Conseil † | | Bishop of Chambéry, France |
| 20 Mar | | Born | Joaquín Antonio Sánchez Ferragudo † | | Bishop of Lérida, Spain |
| 22 Mar | 50.7 | Ordained Deacon | Alessandro Francesco Codebò † | Deacon | Bishop of Città di Castello, Italy |
| 40.2 | Ordained Bishop | Sebastião de Andrade Peçanha † | Archbishop of Goa, India | Archbishop Emeritus |
| 13.3 | Converted | Moritz Adolf Karl von Sachsen-Zeitz (Saský) † | Bishop of Litoměřice, Czechia |
| 47.6 | Ordained Bishop | Hendrik Jozef van Susteren † | Bishop of Brugge {Bruges}, Belgium |
| 26 Mar | 15.6 | Selected | Clemens August Maria von Bayern † | Bishop of Regensburg, Germany | Archbishop of Köln {Cologne}, Germany |
| 27 Mar | | Born | Nicolò Antonio Spínola, O.M. † | | Titular Archbishop of Naupactus |
| 28 Mar | 22.3 | Ordained Deacon | Giovanni Calebotta † | Deacon | Bishop of Šibenik (Knin), Croatia |
| 25.2 | Ordained Priest | Emmanuel Caranza † | Priest | Bishop of Syros (e Milos), Greece |
| 24.4 | Ordained Priest | Richard Challoner † | Priest of London District, England, Great Britain | Vicar Apostolic |
| 50.7 | Ordained Priest | Alessandro Francesco Codebò † | Priest | Bishop of Città di Castello, Italy |
| 23.0 | Ordained Deacon | Aleksander Działyński † | Deacon | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 22.9 | Ordained Priest | Júlio Francisco de Oliveira, C.O. † | Priest of Confederation of Oratorians of St. Philip Neri | Bishop of Viseu, Portugal |
| 30 Mar | 49.4 | Appointed | Diego Astorga y Céspedes † | Bishop of Barcelona, Spain | Cardinal, Archbishop of Toledo, Spain |
| 61.0 | Appointed | Raimundo Caballero, O.S.B. † | Bishop of Puerto Rico (Porto Rico) | Bishop-Elect |
| 73.7 | Installed | Innico Caracciolo (Jr.) † | Cardinal-Priest of San Tommaso in Parione | Cardinal, Bishop of Aversa, Italy |
| 47.2 | Confirmed | Jean-Louis du Bouchet de Sourches † | Bishop of Dol, France |
| 51.8 | Appointed | Johann Baptist Gegg † | Auxiliary Bishop of Worms, Germany |
| 51.8 | Appointed | Johann Baptist Gegg † | Titular Bishop of Trapezopolis | Auxiliary Bishop of Worms, Germany |
| 29.2 | Appointed | Simone Gritti † | Bishop of Kotor (Cattaro), Montenegro | Bishop Emeritus of Acquapendente, Italy |
| 43.3 | Appointed | Dionisio Francisco Mellado Eguíluz † | Auxiliary Bishop of Toledo, Spain |
| 43.3 | Appointed | Dionisio Francisco Mellado Eguíluz † | Titular Bishop of Lares | Auxiliary Bishop of Toledo, Spain |
| 70.5 | Appointed | Ferdinando Nuzzi † | Archbishop (Personal Title) of Orvieto, Italy | Cardinal, Bishop |
| 39.0 | Appointed | Agostino Spínola, C.R.S. † | Bishop of Ajaccio, France | Bishop of Savona, Italy |
| 64.2 | Appointed | Jean Vidovich † | Bishop of Trogir (Traù), Croatia |
| 3 Apr | 59.2 | Appointed | György (Hennadiy) Bizánczy (Bizantsiy) † | Titular Bishop of Sebastopolis in Armenia | Vicar Apostolic of Mukachevo (Munkács) (Ruthenian), Ukraine |
| 59.2 | Confirmed | György (Hennadiy) Bizánczy (Bizantsiy) † | Vicar Apostolic of Mukachevo (Munkács) (Ruthenian), Ukraine |
| 71.2 | Appointed | Juan a Santa Cruz, O.P. † | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 71.2 | Appointed | Juan a Santa Cruz, O.P. † | Titular Bishop of Hemeria (Himeria) | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 5 Apr | 39.0 | Ordained Bishop | Agostino Spínola, C.R.S. † | Bishop of Ajaccio, France | Bishop of Savona, Italy |
| 6 Apr | 60.8 | Appointed | George Witham † | Vicar Apostolic of Northern District, England, Great Britain |
| 8 Apr | | Born | Gaspare Barletta † | | Bishop of Venosa, Italy |
| 11 Apr | 24.1 | Ordained Priest | Filippo Coscia † | Priest | Titular Bishop of Targa |
| 26.4 | Ordained Priest | Gaetano Calvani † | Priest | Bishop Emeritus of Bertinoro, Italy |
| 29.1 | Ordained Priest | Johann Gottfried Groß von Trockau † | Priest of Eichstätt, Germany | Auxiliary Bishop |
| 23.9 | Ordained Priest | Gregorio de Molleda y Clerque † | Priest | Archbishop of La Plata o Charcas, Bolivia |
| 16 Apr | 39.8 | Selected | Sigismund von Kollonitsch † | Bishop of Wien, Austria | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 59.2 | Selected | Wilhelm von Leslie † | Bishop of Vác, Hungary | Bishop of Ljubljana (Laybach; Laibach), Slovenia |
| 19 Apr | 68.2 | Died | Pedro Aguado, C.R.M. † | Bishop of Pamplona, Spain |
| 60.4 | Selected | João de Brito e Vasconcelos † | Bishop of Angra, Portugal |
| 29.2 | Ordained Bishop | Simone Gritti † | Bishop of Kotor (Cattaro), Montenegro | Bishop Emeritus of Acquapendente, Italy |
| 64.2 | Ordained Bishop | Jean Vidovich † | Bishop of Trogir (Traù), Croatia |
| 24 Apr | 45.5 | Selected | Petrus Bakich de Lach † | Bishop of Bosnia (Bosna, Diacovar, Diakovar), Croatia |
| 21.3 | Ordained Priest | Pedro Agustín Morell de Santa Cruz y Lora † | Priest of Santiago de Cuba | Bishop |
| 25 Apr | 70.2 | Died | Peter Anton Gaus von Homberg † | Bishop of Pedena, Austria |
| 33.0 | Succeeded | Georg Xaver Marotti † | Bishop of Pedena, Austria |
| Born | Antonio Puoti † | | Archbishop of Amalfi, Italy |
| 27 Apr | | Born | Bartolomeo Bitozzi † | | Bishop of Ripatransone, Italy |
| May | 55.4 | Died | Orazio Maria Panciatichi † | Bishop of Fiesole, Italy |
| 3 May | 62.3 | Died | Giovanni Battista Capilupi † | Bishop of Polignano (Polinianum), Italy |
| 60.1 | Died | Rogerius Giacobetti † | Bishop of Assisi, Italy |
| 18 May | 30.9 | Selected | Gabriel-Florent de Choiseul-Beaupré † | Bishop of Saint-Papoul, France | Bishop of Mende, France |
| 42.3 | Selected | Jean-Armand de La Voue de Tourouvre † | Bishop of Rodez, France |
| 19 May | 15.7 | Confirmed | Clemens August Maria von Bayern † | Bishop of Regensburg, Germany | Archbishop of Köln {Cologne}, Germany |
| Jun | 81.0 | Died | Ludovico Masdoni † | Bishop of Modena, Italy |
| 1 Jun | | Born | Hermann Hannibal von Blümegen † | | Bishop of Hradec Králové, Czechia |
| 29.7 | Ordained Deacon | Francesco Riccardo Ferniani † | Deacon | Bishop of Perugia, Italy |
| 4 Jun | | Born | Philipp Gotthard von Schaffgotsch † | | Bishop of Wrocław (Breslau), Poland |
| 6 Jun | 30.3 | Ordained Priest | Antonio Maturi, O.F.M. Ref. † | Priest of Order of Reformed Friars Minor | Bishop of Syros (e Milos), Greece |
| 7 Jun | 24.1 | Ordained Deacon | Francisco de São Tiago, O.F.M. Obs. † | Deacon of Order of Observant Friars Minor | Bishop of São Luís do Maranhão, Brazil |
| 8 Jun | 33.8 | Appointed | Annibale Albani † | Cardinal-Deacon of Santa Maria in Cosmedin | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 70.2 | Appointed | Marco Battista Battaglini † | Bishop of Cesena, Italy |
| 50.9 | Appointed | Alessandro Francesco Codebò † | Bishop of Città di Castello, Italy |
| 53.0 | Appointed | Barnaba Giovanni Battista Fedele, O.P. † | Bishop of Ispahan, Iran |
| 70.5 | Appointed | Nicola Grimaldi † | Cardinal, Cardinal-Priest of San Matteo in Merulana |
| 56.9 | Confirmed | Joseph-Emmanuel de la Trémoille † | Bishop of Bayeux, France | Cardinal, Archbishop of Cambrai, France |
| 54.0 | Appointed | José Pereira de Lacerda † | Cardinal, Bishop of Faro {Algarve}, Portugal |
| 58.3 | Appointed | João de Souza e Carvalho † | Bishop of Miranda (do Douro), Portugal |
| 57.3 | Installed | Niccolò Spínola † | Cardinal-Priest of San Sisto | Cardinal, Cardinal-Priest of Santi Nereo ed Achilleo |
| 14 Jun | 49.6 | Ordained Bishop | Diego Astorga y Céspedes † | Bishop of Barcelona, Spain | Cardinal, Archbishop of Toledo, Spain |
| 24.1 | Ordained Priest | Francisco de São Tiago, O.F.M. Obs. † | Priest of Order of Observant Friars Minor | Bishop of São Luís do Maranhão, Brazil |
| 22 Jun | 63.8 | Died | Joseph Antoine Muscella, O.F.M. † | Bishop of Cefalù, Italy |
| 24 Jun | 74.4 | Died | François-Clément de Poudenx † | Bishop of Tarbes, France |
| 26 Jun | | Born | Charles Nicolas Alexandre d’Oultremont † | | Bishop of Liège, Belgium |
| 29 Jun | | Born | Pierre-Paul du Queylar (Caylar) † | | Bishop Emeritus of Digne, France |