| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Alexander Bianchi † | Alexien | Bishop of Pult, Albania |
| 15.6 | Professed | Antonius D’Afflitto, C.R. † | Member of Congregation of Clerics Regular | Archbishop of Cosenza, Italy |
| Born | Paul Dovanlia † | Philippopolitan | Bishop of Nicopoli, Bulgaria |
| Died | Bernard Dunne † | Bishop of Kildare and Leighlin, Ireland |
| 72.9 | Died | Blasius de Vicariis † | Titular Bishop of Capharnaum |
| Appointed | Tobie El-Khazen † | Titular Bishop | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| Ordained Bishop | Tobie El-Khazen † | Titular Bishop | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| Died | Edmund Kelly † | Bishop of Clonfert, Ireland |
| Born | Filippo Lancellotti † | Rome, Italy | Cardinal, Cardinal-Deacon |
| 34.3 | Ordained Bishop | Claude-Louis de La Châtre † | Bishop of Agde, France |
| 24.3 | Ordained Priest | Franciszek Potkański † | Priest | Auxiliary Bishop Emeritus of Kraków, Poland |
| 69.8 | Died | Matthaeus de Robertis † | Titular Bishop of Callinicum |
| 15.3 | Professed | Giovanni Maria Spinelli, C.R. † | Member of Congregation of Clerics Regular | Archbishop of Messina, Italy |
| Born | Giorgio Stay † | Melos | Bishop-Elect of Santorini {Thira}, Greece |
| Jan | 65.2 | Died | Domenico Filomarini, C.R. † | Bishop of Trevico, Italy |
| 10 Jan | 81.4 | Died | Manuel Álvares da Costa † | Bishop of Angra, Portugal |
| 13 Jan | | Born | Joaquín Santiyán Valdivieso † | Arce | Archbishop of Tarragona, Spain |
| 18 Jan | | Ordained Bishop | Jean-Georges de Souillac † | Bishop of Lodčve, France |
| 19 Jan | 37.0 | Appointed | Troiano Acquaviva d’Aragona † | Cardinal-Priest of Santa Cecilia | Cardinal, Archbishop of Monreale, Italy |
| 46.7 | Appointed | Gerolamo Fonda † | Bishop of Nona (Nin), Croatia | Bishop of Trogir (Traů), Croatia |
| 38.8 | Appointed | Francesco Guidi † | Bishop of Arezzo, Italy | Archbishop of Pisa, Italy |
| 58.2 | Appointed | Stanisław Józef Hozjusz † | Bishop of Poznań, Poland |
| 63.9 | Died | Mattia Joccioa † | Bishop of Venafro, Italy |
| 47.9 | Appointed | Casimiro Rossi † | Archbishop of Taranto, Italy | Archbishop of Salerno, Italy |
| 57.3 | Appointed | Giovanni Soffietti, C.R.M. † | Bishop of Adria, Italy |
| 20 Jan | 78.2 | Died | Pierre de Sabatier † | Bishop of Amiens, France |
| 25 Jan | 69.1 | Ordained Bishop | Juan de Arregui, O.F.M. † | Bishop of Buenos Aires, Argentina |
| 38.8 | Ordained Bishop | Francesco Guidi † | Bishop of Arezzo, Italy | Archbishop of Pisa, Italy |
| 65.2 | Died | Matthew Ripa † | Titular Bishop of Hebron |
| 47.9 | Ordained Bishop | Casimiro Rossi † | Archbishop of Taranto, Italy | Archbishop of Salerno, Italy |
| 27 Jan | | Born | Joseph Adam Arco † | Salzburg | Bishop of Seckau, Austria |
| 31 Jan | | Born | Adam Kłokocki † | Ivensi | Auxiliary Bishop of Lutsk and Zhytomyr (Łuck and Zytomierz), Ukraine |
| 1 Feb | 46.8 | Ordained Bishop | Gerolamo Fonda † | Bishop of Nona (Nin), Croatia | Bishop of Trogir (Traů), Croatia |
| 22.9 | Ordained Priest | Francesco Maria Forlani † | Priest | Bishop of Civita Castellana e Orte, Italy |
| 34.9 | Ordained Priest | Giovanni Battista Miceli † | Priest | Bishop of Cassano all’Jonio, Italy |
| 51.0 | Installed | Domenico Antonio Peronaci † | Bishop of Umbriatico (Umbriaticum), Italy |
| 6 Feb | 46.3 | Selected | Stephanus Ladislaus Luzenszky † | Bishop of Varaždin, Croatia | Titular Bishop of Thyatira |
| 12 Feb | | Died | Jacob IV Awad † | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| 13 Feb | 67.0 | Died | Pietro Vincenzo Platamone, O.P. † | Bishop of Lipari, Italy |
| 16 Feb | 53.1 | Died | Juan Antonio de Lardizabal y Elorza † | Bishop of Tlaxcala, México |
| 19 Feb | | Born | Ignace-François de Joannis de Verclos † | Avignon | Bishop of Accia and Mariana, France |
| 22 Feb | 23.9 | Ordained Priest | Nicolň Cicirelli † | Priest | Bishop of Gravina (di Puglia), Italy |
| 24 Feb | 63.9 | Died | Alamanno Salviati † | Cardinal, Cardinal-Priest of Santa Maria in Ara Coeli |
| 25 Feb | | Selected | Joseph V Dergham El-Khazen † | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| 28 Feb | 62.3 | Died | Giovanni Battista Lomellini, O.P. † | Bishop of Saluzzo, Italy |
| 28.4 | Ordained Priest | Vincenzo Giovanni Vico † | Priest | Archbishop of Oristano, Italy |
| Mar | 72.2 | Died | Bonaventura Blasio, O.F.M. Conv. † | Bishop of Castellaneta, Italy |
| 64.2 | Died | Francesco Castello † | Bishop of Lettere (-Gragnano), Italy |
| 70.0 | Died | Pietro Giacomo Pichi † | Bishop of Cittŕ Ducale, Italy |
| 2 Mar | 63.0 | Appointed | Giovanni Maria Benzoni † | Bishop of Chioggia, Italy | Bishop Emeritus |
| 33.5 | Appointed | Giovanni Bragadino (Bragadin) † | Bishop of Verona, Italy | Patriarch of Venezia {Venice}, Italy |
| 47.8 | Appointed | Neri Maria Corsini † | Cardinal, Prefect of the Apostolic Signatura |
| 48.5 | Appointed | Gennaro Maria Danza † | Bishop of Calvi Risorta, Italy |
| 61.2 | Elevated to Cardinal | Domenico Riviera † | Cardinal, Cardinal-Priest of Santi XII Apostoli |
| Died | Bernardo Serrada, O. Carm. † | Bishop of Cuzco, Peru |
| 52.6 | Confirmed | Antal Kázmér von Thurn und Valsassina † | Bishop of Pécs, Hungary |
| 5 Mar | 55.6 | Appointed | Matthaeus Bertolini † | Bishop of Alghero, Italy | Archbishop of Sassari, Italy |
| 53.3 | Appointed | Giambattista Curli † | Bishop of Nebbio, France | Bishop Emeritus |
| 46.2 | Appointed | Anton Joseph von Lamberg † | Auxiliary Bishop of Passau, Germany | Auxiliary Bishop Emeritus |
| 46.2 | Appointed | Anton Joseph von Lamberg † | Titular Bishop of Lete | Auxiliary Bishop Emeritus of Passau, Germany |
| 36.9 | Appointed | Johann Rudolf von Sporck † | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 6 Mar | | Born | Filippo Casoni † | Sarzana, Italy | Cardinal, Secretary Emeritus of the Secretariat of State |
| 8 Mar | 48.5 | Ordained Bishop | Gennaro Maria Danza † | Bishop of Calvi Risorta, Italy |
| 11 Mar | | Born | Jean-Pierre Saurine † | Saint-Pierre d'Eysey | Bishop of Strasbourg, France |
| 12 Mar | | Born | Emilio Gentile † | Biccari | Bishop of Alife, Italy |
| 15 Mar | 63.0 | Ordained Bishop | Giovanni Maria Benzoni † | Bishop of Chioggia, Italy | Bishop Emeritus |
| 33.6 | Ordained Bishop | Giovanni Bragadino (Bragadin) † | Bishop of Verona, Italy | Patriarch of Venezia {Venice}, Italy |
| 21 Mar | 35.3 | Ordained Priest | Benedetto Gaetani † | Priest | Bishop of Colle di Val d’Elsa, Italy |
| 23.0 | Ordained Priest | Marcello Capano Orsini † | Priest | Archbishop of Conza, Italy |
| 22.9 | Ordained Priest | Carlo Augusto Peruzzini, B. † | Priest of Clerics Regular of St. Paul | Bishop of Macerata e Tolentino, Italy |
| 61.3 | Ordained Priest | Domenico Riviera † | Priest | Cardinal, Cardinal-Priest of Santi XII Apostoli |
| 28 Mar | | Born | Fabrizio Cimino, C.SS.R. † | Salerno | Bishop of Oria, Italy |
| 30 Mar | | Born | Godefridus (Philippus Josephus) de La Porte, O.F.M. Cap. † | Ambianen | Archbishop of Naxos, Greece |
| 61.1 | Died | Luis Simőes Brandăo † | Bishop Emeritus of Angola e Congo, Angola |
| 4 Apr | 24.1 | Ordained Priest | Jacobus Maria de Tarsia, O.M. † | Priest of Order of the Minims | Bishop of Martirano (Martoranum), Italy |
| 26.8 | Ordained Priest | James Grant † | Priest | Vicar Apostolic of Lowland District, Scotland, Great Britain |
| 5 Apr | 28.0 | Ordained Priest | Joannes Ernestus von Harrach † | Priest | Bishop of Nitra, Slovakia |
| 6 Apr | 53.4 | Ordained Bishop | Giambattista Curli † | Bishop of Nebbio, France | Bishop Emeritus |
| 23.4 | Ordained Priest | António Joaquim Torrăo † | Priest | Auxiliary Bishop of Évora, Portugal |
| 9 Apr | 65.6 | Died | Bartolomeu do Pilar, O. Carm. † | Bishop of Belém do Pará, Brazil |
| 10 Apr | 77.2 | Died | Daniel Joseph Mayer † | Archbishop of Praha {Prague}, Czech Republic |
| 11 Apr | 70.0 | Died | José Fernández del Toro † | Bishop Emeritus of Oviedo, Spain |
| 13 Apr | 42.3 | Appointed | Emmanuel Caranza † | Bishop of Syros (e Milos), Greece |
| 47.9 | Appointed | Agostino Giannini † | Bishop of Lettere (-Gragnano), Italy |
| 47.3 | Appointed | Antonio Maturi, O.F.M. † | Archbishop of Naxos, Greece | Bishop of Syros (e Milos), Greece |
| 61.4 | Installed | Domenico Riviera † | Cardinal-Priest of Santi Quirico e Giulitta | Cardinal, Cardinal-Priest of Santi XII Apostoli |
| 46.3 | Appointed | Tomasz Załęski, O.P. † | Bishop of Bacău, Romania | Bishop-Elect |
| 14 Apr | 22.5 | Ordained Priest | Ferenc Barkóczy de Szala † | Priest | Archbishop of Esztergom, Hungary |
| 18 Apr | 63.3 | Died | Louis de La Vergne-Montenard de Tressan † | Archbishop of Rouen, France |
| 19 Apr | | Born | Spiridione Berioli † | Citta di Castello | Archbishop of Urbino, Italy |
| 47.9 | Ordained Bishop | Agostino Giannini † | Bishop of Lettere (-Gragnano), Italy |
| 23 Apr | 45.1 | Died | Thomaz Franciszek Czapski, O. Cist. † | Bishop of Chelmno (Culma, Kulm), Poland |
| 29 Apr | 65.7 | Died | Saverio Ferrari † | Bishop of Martirano (Martoranum), Italy |
| 30 Apr | 67.8 | Died | Alessandro Francesco Codebň † | Bishop of Cittŕ di Castello, Italy |
| May | | Born | Ignatius Nagy de Sellye † | Alba Regalen | Bishop of Székesfehérvár (Albareale), Hungary |
| 3 May | 42.3 | Ordained Bishop | Emmanuel Caranza † | Bishop of Syros (e Milos), Greece |
| 4 May | 61.5 | Died | Pedro Espinosa de los Monteros, O.F.M. † | Bishop of Jaca, Spain |
| 7 May | | Born | Philip Bandini † | Salernitan | Bishop of Larino, Italy |
| 71.3 | Died | Jean Le Normant † | Bishop of Evreux, France |
| 8 May | 71.4 | Died | Nuno Álvares Pereira de Melo † | Bishop of Lamego, Portugal |
| 11 May | 54.6 | Appointed | Bernardo Maria Beamonte, O.C.D. † | Bishop of Lipari, Italy |
| 42.1 | Appointed | Massenzio dei Conti Filo † | Bishop of Castellaneta, Italy |
| 33.7 | Appointed | Francesco Agnello Fragianni † | Bishop of Venafro, Italy | Bishop of Calvi Risorta, Italy |
| 48.4 | Appointed | Francesco Antonio Leonardis † | Bishop of Trevico, Italy | Bishop of Bisceglie, Italy |
| 55.0 | Appointed | Joannes Bernardinus Vendemini † | Bishop of Sarsina, Italy |
| 55.2 | Appointed | Augustyn Wessel, O. Cist. † | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine |
| 17 May | 42.1 | Ordained Bishop | Massenzio dei Conti Filo † | Bishop of Castellaneta, Italy |
| 33.7 | Ordained Bishop | Francesco Agnello Fragianni † | Bishop of Venafro, Italy | Bishop of Calvi Risorta, Italy |
| 48.4 | Ordained Bishop | Francesco Antonio Leonardis † | Bishop of Trevico, Italy | Bishop of Bisceglie, Italy |
| 25 May | 55.1 | Ordained Bishop | Joannes Bernardinus Vendemini † | Bishop of Sarsina, Italy |
| 29 May | | Born | Giovanni Battista Caprara Montecuccoli † | Bologna | Cardinal, Archbishop of Milano {Milan}, Italy |
| 30 May | 24.3 | Ordained Priest | Donato Maria Arcangeli † | Priest | Bishop of Pescia, Italy |
| 22.9 | Ordained Priest | Serafino Brancone (Branconi), O.S.B. † | Priest of Order of Saint Benedict | Bishop Emeritus of Gallipoli, Italy |
| 24.7 | Ordained Priest | Nicolaus Mauritius Fontana † | Priest | Archbishop of Oristano, Italy |
| 23.0 | Ordained Priest | Carlo Gagliardi † | Priest | Bishop of Muro Lucano, Italy |
| 23.1 | Ordained Priest | György Klimó † | Priest | Bishop of Pécs, Hungary |
| 24.2 | Ordained Priest | Charles-François de Pélissier de Saint-Ferréol † | Priest | Bishop Emeritus of Vaison, France |
| 26.8 | Ordained Priest | Cristoforo Sizzo de Noris † | Priest of Trento, Italy | Bishop |
| 24.4 | Ordained Priest | Antonio Vigliarolo † | Priest | Auxiliary Bishop of Ostia (-Velletri), Italy |
| 2 Jun | 56.0 | Died | Johann Adam von Wratislaw von Mitrowitz † | Bishop of Litoměřice, Czech Republic |
| 7 Jun | 28.3 | Ordained Priest | Walenty Franciszek Wężyk † | Priest | Bishop of Przemyśl, Poland |
| 9 Jun | 71.0 | Died | Louis-Gaston Fleuriau d’Armenonville † | Bishop of Orléans, France |
| 53.2 | Succeeded | Nicolas-Joseph de Paris † | Bishop of Orléans, France |
| 14 Jun | 23.0 | Ordained Priest | Benedetto Latilla, C.R.L. † | Priest of Canons Regular of the Congregation of the Most Holy Saviour of the Lateran | Bishop Emeritus of Avellino e Frigento, Italy |
| 20 Jun | 64.7 | Died | Caspar Adolph Schnernauer † | Auxiliary Bishop of Mainz, Germany |
| 21 Jun | 24.3 | Ordained Priest | Nicola Ferri † | Priest | Bishop of Satriano e Campagna, Italy |
| 22 Jun | 43.3 | Appointed | Josephus Augustinus Czarnecki † | Titular Bishop of Domitiopolis |
| 51.9 | Appointed | Nicolň Carmine Falcone † | Bishop of Martirano (Martoranum), Italy | Archbishop of Santa Severina, Italy |
| 34.8 | Appointed | Adam Stanisław Grabowski † | Auxiliary Bishop of Poznań, Poland | Bishop of Warmia (Ermland), Poland |
| 34.8 | Appointed | Adam Stanisław Grabowski † | Titular Bishop of Nilopolis | Bishop of Warmia (Ermland), Poland |
| 57.0 | Selected | Johann Moritz Gustav von Manderscheid-Blankenheim † | Archbishop of Praha {Prague}, Czech Republic |
| 63.5 | Appointed | Konstanty Moszynski, O.S.P. † | Bishop of Inflanty (Livonia)-Pilten, Poland |
| 35.8 | Appointed | Francesco Rivera † | Bishop of Cittŕ Ducale, Italy | Archbishop of Manfredonia, Italy |
| 26 Jun | 66.6 | Died | Francisco Eustaquio Perea Porras † | Archbishop of Granada, Spain |
| 28 Jun | 51.9 | Ordained Bishop | Nicolň Carmine Falcone † | Bishop of Martirano (Martoranum), Italy | Archbishop of Santa Severina, Italy |
| 35.8 | Ordained Bishop | Francesco Rivera † | Bishop of Cittŕ Ducale, Italy | Archbishop of Manfredonia, Italy |
| 30 Jun | 79.2 | Died | John Wallace † | Coadjutor Vicar Apostolic of Lowland District, Scotland, Great Britain |