| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Miguel Anselmo Álvarez de Abreu y Valdéz † | La Laguna, Spain | Bishop of Antequera, Oaxaca, México |
| 15.2 | Professed | Francesco Antonio Cavalcanti, C.R. † | Member of Congregation of Clerics Regular | Archbishop of Cosenza, Italy |
| 45.0 | Ordained Priest | Louis Philippe d’Auneau de Visé † | Priest of Strasbourg, France | Auxiliary Bishop |
| Born | Louis-Marie Deveaux, M.E.P. † | Saint-Malo, France | Coadjutor Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viet Nam |
| Born | Francisco Ramón Herboso y Figueroa, O.P. † | Lima | Archbishop of La Plata o Charcas, Bolivia |
| 48.0 | Appointed | Luka Lev Kiszka † | Bishop of Włodzimierz et Brest (Ruthenian) | Archbishop of Kyiv-Halyč {Kiev} (Ruthenian), Ukraine |
| 23.9 | Ordained Priest | Jean-François de Macheco de Prémeaux † | Priest | Bishop of (Saint-Lizier de) Couserans, France |
| 62.9 | Died | Pedro de Palacios y Tenorio, O.P. † | Bishop Emeritus of Guadix, Spain |
| 27.7 | Ordained Priest | Diego Felipe Perea Magdaleno † | Priest | Archbishop of Burgos, Spain |
| Born | Francisco San Andrés, O.S.H. † | Toledo | Auxiliary Bishop of Salamanca, Spain |
| Born | Filippo Sanseverino † | Nocera dei Pagani | Bishop Emeritus of Alife, Italy |
| 33.0 | Ordained Priest | John Talbot Stonor † | Priest | Vicar Apostolic of Midland District, England, Great Britain |
| 37.0 | Ordained Priest | José de Toro y Zambrano † | Priest of Santiago de Chile | Bishop of Concepción, Chile |
| 24.0 | Ordained Priest | Lawrence William York, O.S.B. † | Priest of Order of Saint Benedict | Vicar Apostolic Emeritus of Western District, England, Great Britain |
| 1 Jan | 75.0 | Died | Isidoro Aparici Gilart † | Auxiliary Bishop of Valencia, Spain |
| 3 Jan | | Born | Giuseppe Maria Capece Zurlo, C.R. † | Monteroni | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 4 Jan | 35.0 | Ordained Bishop | Charles-Alexandre Le Filleul de La Chapelle † | Bishop of Vabres, France |
| 52.0 | Ordained Bishop | Joseph-Gaspard de Montmorin de Saint-Hérem de La Chassaigne † | Bishop of Aire, France |
| 6 Jan | 30.1 | Confirmed | Karl Joseph Ignaz von Lothringen † | Archbishop of Trier, Germany | Archbishop-Elect |
| 76.9 | Died | Johann Hugo von Orsbeck † | Archbishop of Trier, Germany |
| 23 Jan | | Born | Alonso Cano Nieto, O.SS.T. † | Moto del Cuervo | Bishop of Segorbe, Spain |
| 25 Jan | 38.6 | Ordained Bishop | Gerolamo Archinto † | Titular Archbishop of Tarsus | Apostolic Nuncio to Poland |
| 16.6 | Professed | Antônio de Nossa Senhora do Desterro Malheiro, O.S.B. † | Member of Order of Saint Benedict | Bishop of São Sebastião do Rio de Janeiro, Brazil |
| 26 Jan | 39.4 | Appointed | Giberto Bartolomeo Borromeo † | Titular Patriarch of Antiochia {Antioch} | Cardinal, Bishop of Novara, Italy |
| 41.8 | Appointed | Álvaro Pires de Castro Noronha † | Bishop of Portalegre, Portugal |
| 36.1 | Confirmed | Charles-François d’Hallencourt de Dromesnil † | Bishop of Autun, France | Bishop of Verdun, France |
| 56.0 | Appointed | Fausto Guidotti † | Bishop of Città della Pieve, Italy |
| 50.7 | Confirmed | Hugo František (Franz) von Königsegg-Rothenfels † | Bishop of Litoměřice, Czech Republic |
| 50.1 | Appointed | Giuseppe Olgiati † | Bishop of Como, Italy | Bishop Emeritus |
| 54.4 | Appointed | Bernardino Egidio Recchi † | Bishop of Acquapendente, Italy |
| 28 Jan | | Born | Antonio Branciforte Colonna † | Palermo | Cardinal, Bishop of Agrigento (Girgenti), Italy |
| Born | José Cayetano Loazes Somoza † | Mondoñedo | Bishop of Palencia, Spain |
| Feb | 78.1 | Died | Antonio Lorenzo de Pedraza, O.M. † | Bishop of Palencia, Spain |
| 3 Feb | 50.2 | Died | Francesco Maria de’ Medici † | |
| 8 Feb | 43.8 | Ordained Bishop | Jules-César Rousseau de La Parisière † | Bishop of Nîmes, France |
| 22 Feb | | Born | Johann Mathäus Schweiberer † | Bezdružice | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 23 Feb | 67.9 | Appointed | Alexander Bonaventura † | Titular Bishop of Nazianzus |
| 54.2 | Appointed | Vitale Giuseppe de’ Buoi † | Bishop of Perugia, Italy |
| 58.4 | Appointed | Jan Mikolaj (Damascene) Łubieniecki, O.P. † | Bishop of Bacău, Romania |
| 41.1 | Appointed | Krzysztof Antoni Szembek † | Bishop of Inflanty (Livonia)-Pilten, Poland | Archbishop of Gniezno, Poland |
| 26 Feb | 77.2 | Selected | Heinrich Hartard von Rollingen † | Bishop of Speyer, Germany |
| 28 Feb | 24.2 | Ordained Priest | Domenico Antonio Biretta † | Priest | Bishop of Acerra, Italy |
| Mar | 38.7 | Appointed | Gerolamo Archinto † | Apostolic Nuncio to Italy | Apostolic Nuncio to Poland |
| 64.2 | Died | Nicolaus Righetti † | Bishop of Martirano (Martoranum), Italy |
| 1 Mar | 39.5 | Ordained Bishop | Giberto Bartolomeo Borromeo † | Titular Patriarch of Antiochia {Antioch} | Cardinal, Bishop of Novara, Italy |
| 7 Mar | | Born | Giovanni Battista Jurileo † | Tragurien | Bishop of Nona (Nin), Croatia |
| 8 Mar | 23.2 | Ordained Priest | Pietro Antonio Corsignani † | Priest | Bishop of Valva, Italy |
| 9 Mar | 60.2 | Died | Vitus Seipel † | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 12 Mar | | Born | Giovanni Battista Albrici Pellegrini † | Como | Bishop of Como, Italy |
| 15 Mar | 45.5 | Ordained Priest | Giacomo Falconi † | Priest | Bishop of Caiazzo, Italy |
| 48.2 | Ordained Bishop | Luka Lev Kiszka † | Bishop of Włodzimierz et Brest (Ruthenian) | Archbishop of Kyiv-Halyč {Kiev} (Ruthenian), Ukraine |
| 21 Mar | 53.2 | Appointed | Juan de Argüelles, O.S.A. † | Bishop of Arequipa, Peru | Bishop-Elect |
| 25.3 | Ordained Priest | Pierluigi del Mayo † | Priest | Bishop Emeritus of Isola, Italy |
| 26.3 | Ordained Priest | Giovanni Battista Rotario da Pralormo (Rovero) † | Priest | Cardinal, Archbishop of Torino {Turin}, Italy |
| 22 Mar | 36.2 | Ordained Bishop | Charles-François d’Hallencourt de Dromesnil † | Bishop of Autun, France | Bishop of Verdun, France |
| 23 Mar | | Born | Giuseppe Maria Foschi † | Cajazzo | Bishop of Lucera, Italy |
| 74.7 | Died | Giovanni Dominico Tomati † | Titular Bishop of Cyrene |
| 24 Mar | | Born | Franz Anton Xaver von Scheben † | Niederburg | Auxiliary Bishop of Worms, Germany |
| 29 Mar | | Ordained Bishop | Olivier-Gabriel de Lubières (Nubières) du Bouchet † | Bishop of (Saint-Bernard de) Comminges, France |
| 31 Mar | | Died | Pedro Solerá Montoya † | Prelate of Santa Lucia del Mela, Italy |
| 4 Apr | 25.3 | Ordained Priest | Franciszek Kanigowski † | Priest | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 61.3 | Selected | Henri-Augustin Le Pileur † | Bishop of Saintes, France | Bishop Emeritus |
| 5 Apr | 46.3 | Selected | Antoine Fagon † | Bishop of Lombez, France | Bishop of Vannes, France |
| 58.3 | Selected | Joseph-Ignace-Jean-Baptiste de Mesgrigny, O.F.M. Cap. † | Bishop of Grasse, France |
| 10 Apr | 60.2 | Selected | Franz Ferdinand von Kuenburg † | Archbishop of Praha {Prague}, Czech Republic |
| 12 Apr | 51.2 | Ordained Priest | Giovanni Giannelli † | Priest | Bishop of Alessano, Italy |
| 17 Apr | 55.3 | Selected | Daniel Joseph Mayer † | Auxiliary Bishop of Praha {Prague}, Czech Republic | Archbishop |
| 21 Apr | | Born | Jan-Robert Caïmo † | Bruselles | Bishop of Brugge {Bruges}, Belgium |
| 26 Apr | | Born | Pasquale Teodoro Basta † | Monteparano | Bishop of Melfi e Rapolla, Italy |
| 1 May | | Born | Alessandro Galletti † | Monte S. Savino | Bishop of Volterra, Italy |
| 23.4 | Ordained Priest | Antonio Manerba (Malerba) † | Priest | Bishop of Sant’Angelo dei Lombardi e Bisaccia, Italy |
| 63.3 | Died | Andrzej Chryzostom Załuski † | Bishop of Warmia (Ermland), Poland |
| 7 May | | Born | Emericus Christovich † | Pestana | Bishop of Csanád, Hungary |
| 11 May | 44.6 | Appointed | Lucantonio Accoramboni † | Bishop of Montalto (delle Marche), Italy |
| 60.3 | Confirmed | Franz Ferdinand von Kuenburg † | Archbishop of Praha {Prague}, Czech Republic |
| 57.5 | Appointed | Carlo Giacinto Lascaris, O.P. † | Bishop of Spoleto, Italy |
| 30.4 | Appointed | Camillo Marazzani † | Bishop of Parma, Italy |
| 12 May | 34.0 | Confirmed | Johann Adam von Wratislaw von Mitrowitz † | Bishop of Hradec Králové, Czech Republic | Bishop of Litoměřice, Czech Republic |
| 13 May | 66.4 | Died | James Smith † | Vicar Apostolic of Northern District, England, Great Britain |
| 17 May | 57.5 | Ordained Bishop | Carlo Giacinto Lascaris, O.P. † | Bishop of Spoleto, Italy |
| 20 May | | Born | Tommaso Agostino de Simone † | Campi | Bishop of Montepeloso, Italy |
| 23 May | 70.4 | Died | Jean-Baptiste de Beaumanoir de Lavardin † | Bishop of Rennes, France |
| 24 May | | Born | Ciriaco Vecchioni † | Ancona | Bishop of Recanati e Loreto, Italy |
| 29 May | 68.5 | Died | Alessandro Roncovieri † | Bishop of Borgo San Donnino, Italy |
| 30 May | 21.6 | Ordained Priest | Muzio Gaeta (Jr.) † | Priest | Archbishop of Capua, Italy |
| 36.4 | Ordained Priest | Diego González Toro y Villalobos † | Priest | Bishop of Cuenca, Spain |
| 23.1 | Ordained Priest | Giovanni Rossi, C.R. † | Priest of Congregation of Clerics Regular | Archbishop of Taranto, Italy |
| 1 Jun | 38.4 | Appointed | Jacques de Forbin-Janson † | Archbishop of Arles, France |
| 47.5 | Appointed | Bernardino Guinigi † | Bishop of Rieti, Italy | Archbishop of Lucca, Italy |
| 34.6 | Confirmed | Franz Karl von Kaunitz-Rietberg † | Bishop of Ljubljana, Slovenia |
| 57.7 | Appointed | Prospero Marefoschi † | Titular Bishop of Cyrene | Cardinal, Cardinal-Priest of San Silvestro in Capite |
| 44.0 | Appointed | Giorgio Spínola † | Titular Archbishop of Caesarea in Cappadocia | Cardinal, Cardinal-Bishop of Palestrina |
| 7 Jun | 60.4 | Died | Francisco Antonio de la Portilla, O.F.M. † | Bishop of Mallorca, Spain |
| 47.5 | Ordained Bishop | Bernardino Guinigi † | Bishop of Rieti, Italy | Archbishop of Lucca, Italy |
| 51.1 | Ordained Bishop | Hugo František (Franz) von Königsegg-Rothenfels † | Bishop of Litoměřice, Czech Republic |
| 30.5 | Ordained Bishop | Camillo Marazzani † | Bishop of Parma, Italy |
| 57.7 | Ordained Bishop | Prospero Marefoschi † | Titular Bishop of Cyrene | Cardinal, Cardinal-Priest of San Silvestro in Capite |
| 44.0 | Ordained Bishop | Giorgio Spínola † | Titular Archbishop of Caesarea in Cappadocia | Cardinal, Cardinal-Bishop of Palestrina |
| 9 Jun | 85.4 | Died | Alessandro Caprara † | Cardinal, Cardinal-Priest of Santi Nereo ed Achilleo |
| 83.7 | Died | Humbertus Guilielmus de Precipiano † | Archbishop of Mechelen, Belgium |
| 14 Jun | 34.1 | Ordained Bishop | Johann Adam von Wratislaw von Mitrowitz † | Bishop of Hradec Králové, Czech Republic | Bishop of Litoměřice, Czech Republic |
| 16 Jun | | Born | François-Louis Pourroy de L’Auberivière † | Grenoble, France | Bishop of Québec, Canada |
| 28 Jun | 67.7 | Died | António de Saldanha † | Bishop of Guarda, Portugal |