| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Juraj Branjug † | Zagreb | Bishop of Zagreb (Agram), Croatia |
| 75.2 | Resigned | Jodok Brendt † | Auxiliary Bishop of Passau, Germany | Auxiliary Bishop Emeritus |
| 55.7 | Died | Franciscus Crisolini † | Bishop of Sarsina, Italy |
| 68.0 | Died | Carlo della Palma, C.R. † | Bishop of Pozzuoli, Italy |
| Born | José Antonio Gutiérrez y Ceballos † | Puenteriego, Spain | Archbishop of Lima, Peru |
| 20.0 | Professed | José Xirón de Alvarado, O.P. † | Priest of Order of Friars Preachers | Bishop of Nicaragua |
| Born | Michał Remigiusz Łaszewski † | Stendsitz | Auxiliary Bishop of Warmia (Ermland), Poland |
| 73.0 | Resigned | Gabriel de la Calle y Heredia † | Bishop of Valladolid, Spain | Bishop Emeritus |
| Born | Joannes Paulus Maricone, C.R.S. † | Januen | Titular Bishop of Hippos |
| 15.7 | Professed | Jaime de Mimbela, O.P. † | Member of Order of Friars Preachers | Bishop of Trujillo, Peru |
| Born | Ioan Constantin Giurgiu Patachi (Nemes de Pataky), O.S.B.M. † | Horgospataka | Bishop of Făgăraş (Romanian), Romania |
| 37.0 | Converted | Thomas Joseph Nicolson † | Vicar Apostolic of Scotland, Great Britain |
| 55.0 | Died | Ambrogio Maria Piccolomini, O.S.B. † | Archbishop of Otranto, Italy |
| Died | Stefano Spínola, C.R.S. † | Bishop of Savona, Italy |
| 52.0 | Appointed | Claude de Saint-Georges † | Bishop of Mâcon, France | Archbishop of Lyon, France |
| Died | Kazimierz Zwierz † | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| Jan | | Born | Antonio Maria Carafa, C.R. † | Somma | Bishop of Avellino e Frigento, Italy |
| Born | Miguel Bernardino de la Fuenta y Rojas † | Liman | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 9 Jan | 75.0 | Resigned | Alessandro Crescenzi, C.R.S. † | Bishop of Recanati e Loreto, Italy | Cardinal, Bishop Emeritus |
| 12 Jan | 49.0 | Appointed | Girolamo Borgia † | Bishop of Tropea, Italy |
| 44.0 | Appointed | Jean-Baptiste d’Estampes de Valançay † | Bishop of Marseille, France |
| 61.0 | Appointed | Francesco Di Giangirolamo † | Bishop of Città Ducale, Italy |
| 55.1 | Appointed | Gianfrancesco Ginetti † | Cardinal-Deacon of Sant’Angelo in Pescheria | Cardinal, Archbishop of Fermo, Italy |
| 38.0 | Confirmed | Louis Habert de Montmort † | Bishop of Perpignan-Elne, France |
| 51.0 | Appointed | Francesco de Mandietta (Mendieta), O.SS.T. † | Bishop of Castellammare di Stabia, Italy |
| 66.8 | Appointed | Antonio Pignatelli del Rastrello † | Archbishop (Personal Title) of Faenza, Italy | Pope (Roma {Rome}, Italy) |
| 53.0 | Appointed | Giorgio Sotgia (Soggia), O.S.M. † | Bishop of Bosa, Italy | Archbishop of Sassari, Italy |
| 16 Jan | 41.0 | Selected | François-Charles de Salettes † | Bishop of Oloron (Oloron-Sainte-Marie), France |
| 23 Jan | | Born | Domenico Antonio Peronaci † | Serra San Bruno | Bishop of Umbriatico (Umbriaticum), Italy |
| 26 Jan | 51.3 | Appointed | Matteo Fazio, O.P. † | Bishop of Patti, Italy |
| 40.7 | Appointed | Leonardo Marsili † | Archbishop of Siena, Italy |
| 54.1 | Appointed | Michele Pignatelli, C.R. † | Bishop of Lecce, Italy |
| Feb | | Born | Valentinus Alexander Czapski, O. Cist. † | Smentowo | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| Born | Antoni Sebastian Dembowski † | | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 1 Feb | 51.3 | Ordained Bishop | Matteo Fazio, O.P. † | Bishop of Patti, Italy |
| 54.1 | Ordained Bishop | Michele Pignatelli, C.R. † | Bishop of Lecce, Italy |
| 2 Feb | | Born | Charles-François des Moustiers de Mérinville † | Paris | Bishop of Chartres, France |
| 37.2 | Ordained Bishop | Claude Le Tonnelier de Breteuil † | Bishop of Boulogne (-Sur-Mer), France |
| 13 Feb | | Born | Francisco Pérez Lozano, O.S.Bas. † | Madrid, Spain | Bishop of Puerto Rico (Porto Rico) |
| 14 Feb | 54.1 | Died | António Teles da Silva, O.S.B. † | Bishop of Funchal, Portugal |
| 15 Feb | 50.9 | Ordained Bishop | Wilhelm von Vintler von Runkelstein † | Titular Bishop of Megara | Auxiliary Bishop of Brixen {Bressanone}, Italy |
| 16 Feb | 64.9 | Appointed | Juan Bautista Desbach i Martorell † | Bishop of Urgell, Spain |
| Died | Mario Fani † | Titular Bishop of Cyrene |
| 40.1 | Confirmed | Jacques Potier de Novion † | Bishop of Evreux, France |
| 19 Feb | 66.0 | Died | Friedrich von Hessen-Darmstadt, O.S.Io.Hieros. † | Cardinal, Bishop of Wrocław (Breslau), Poland |
| 21 Feb | 24.1 | Ordained Priest | Francesco Arborio di Gattinara, B. † | Priest of Clerics Regular of St. Paul | Archbishop of Torino {Turin}, Italy |
| 22 Feb | 44.1 | Ordained Bishop | Jean-Baptiste d’Estampes de Valançay † | Bishop of Marseille, France |
| 52.1 | Died | Antonio González de Acuña, O.P. † | Bishop of Caracas, Santiago de Venezuela |
| 25 Feb | 58.1 | Died | Claudio Marazzani † | Bishop of Senigallia, Italy |
| 27 Feb | 62.2 | Died | Jean de Forcoal † | Bishop of Sées, France |
| 13 Mar | 43.2 | Installed | Jan Kazimierz Opaliński, O. Cist. † | Bishop of Chelmno (Culma, Kulm), Poland |
| 23 Mar | 48.2 | Selected | Alfonso Galaz Torrero † | Bishop of Tui, Spain |
| 16.0 | Professed | Francesco Maria Muscettola, C.R. † | Member of Congregation of Clerics Regular | Archbishop Emeritus of Rossano, Italy |
| 28 Mar | 26.4 | Ordained Priest | Fabio Brulart de Sillery † | Priest | Bishop of Soissons, France |
| 24.9 | Ordained Priest | Ulrich von Federspiel † | Priest of Chur, Switzerland | Bishop |
| Apr | 67.0 | Died | Gaetano D’Afflitto, C.R. † | Bishop of Cava (de’ Tirreni), Italy |
| 46.3 | Ordained Bishop | Dominique d’Esclaux de Mesplez (Messelez) † | Bishop of Lescar, France |
| Born | Adolphus Groll (a S. Georgio) † | Crembsirii | Bishop of Győr (Raab), Hungary |
| Died | Arcangelo Tipaldi, O.F.M. † | Bishop of L’Aquila, Italy |
| 1 Apr | 56.0 | Died | Franz Egon von Fürstenberg † | Bishop of Strasbourg, France |
| 6 Apr | 34.3 | Appointed | Maximilien Bormann † | Auxiliary Bishop of Trier, Germany |
| 34.3 | Appointed | Maximilien Bormann † | Titular Bishop of Diocletiana | Auxiliary Bishop of Trier, Germany |
| 62.1 | Appointed | Girolamo Casanate † | Cardinal-Deacon of Sant’Agata de’ Goti | Cardinal, Cardinal-Priest of San Silvestro in Capite |
| 7 Apr | 77.3 | Died | Diego Francés de Urrutigoyti y Lerma † | Bishop of Tarazona, Spain |
| 8 Apr | 79.7 | Died | François Perrochel † | Bishop Emeritus of Boulogne (-Sur-Mer), France |
| 10 Apr | 52.3 | Died | Angelus Grimaldi, O.P. † | Auxiliary Bishop of Albano, Italy |
| 11 Apr | | Born | Carlo Vincenzo Maria Ferreri Thaon, O.P. † | Nice, France | Cardinal, Bishop of Vercelli, Italy |
| 12 Apr | 38.3 | Ordained Bishop | Louis Habert de Montmort † | Bishop of Perpignan-Elne, France |
| 33.7 | Ordained Bishop | Hieronim Wierzbowski † | Titular Bishop of Fesseë | Auxiliary Bishop of Poznań, Poland |
| 16 Apr | 80.3 | Died | Michel Tuboeuf † | Bishop of Castres, France |
| 19 Apr | 77.3 | Died | Gilbert de Vény d’Arbouze † | Bishop of Clermont, France |
| 20 Apr | 60.3 | Appointed | Sebastián de Arévalo y Torres, O.F.M. † | Bishop of Osma, Spain |
| 63.3 | Appointed | Juan Asensio Barrios, O. de M. † | Bishop of Jaén, Spain |
| 44.3 | Appointed | Stanisław Kazimierz Dąmbski † | Bishop of Płock, Poland | Bishop of Kraków, Poland |
| Appointed | Francisco de Aguiar y Seijas y Ulloa † | Archbishop of México, Federal District |
| 50.3 | Appointed | Joannes Debski † | Auxiliary Bishop of Przemyśl, Poland |
| 50.3 | Appointed | Joannes Debski † | Titular Bishop of Belline | Auxiliary Bishop of Przemyśl, Poland |
| 64.3 | Appointed | Simón García Pedrejón, O.F.M. † | Bishop of Oviedo, Spain |
| 48.8 | Appointed | Péter Korompay † | Bishop of Eger, Hungary | Bishop of Nitra, Slovakia |
| 41.3 | Appointed | Giovanni Battista Ponzi † | Bishop of Umbriatico (Umbriaticum), Italy |
| 41.3 | Appointed | François-Charles de Salettes † | Bishop of Oloron (Oloron-Sainte-Marie), France |
| 44.7 | Confirmed | Louis de Thomassin † | Bishop of Sisteron, France |
| 23 Apr | | Born | Jorge Casado Torreblanca † | Lucena | Bishop Emeritus of Urgell, Spain |
| Died | Carlo Settala † | Bishop of Tortona, Italy |
| May | | Born | Agostino Bruti † | Justinopolitan | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia |
| 1 May | 47.3 | Ordained Priest | Francesco Maria Giannotti † | Priest | Bishop of Segni, Italy |
| 4 May | 64.3 | Appointed | Domingo Fernández Navarrete, O.P. † | Archbishop of Santo Domingo, Dominican Republic |
| 47.3 | Appointed | Francesco Maria Giannotti † | Bishop of Segni, Italy |
| Appointed | Guarnerio Guarnieri † | Bishop of Recanati e Loreto, Italy |
| 61.3 | Appointed | João da Madre de Deus Araújo, O.F.M. † | Archbishop of São Salvador da Bahia, Brazil |
| 74.3 | Died | Jean de Mallevaud, O.F.M. † | Auxiliary Bishop of Clermont, France |
| 56.1 | Appointed | Lodovico Settala † | Bishop of Cremona, Italy |
| 7 May | 60.3 | Died | Andrés Aznar Naves, O.S.A. † | Bishop of Teruel, Spain |
| 10 May | 56.1 | Ordained Bishop | Lodovico Settala † | Bishop of Cremona, Italy |
| 12 May | 63.3 | Died | Michelangelo Ricci † | Cardinal, Cardinal-Deacon of Santa Maria in Aquiro |
| 15 May | | Born | Giuseppe Isidoro Persico † | Napoli | Bishop of Isernia, Italy |
| 17 May | 48.4 | Ordained Bishop | Jacques de Bourges, M.E.P. † | Titular Bishop of Auzia | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viet Nam |
| 22 May | 50.4 | Selected | Mathurin Savary † | Bishop of Sées, France |
| 23 May | 59.4 | Installed | Gabriel de La Roque-Prielé † | Bishop of Bayonne, France |
| 25 May | 51.5 | Confirmed | Louis Aube de Roquemartine † | Bishop of Saint-Paul-Trois-Châteaux, France |
| 54.4 | Confirmed | August Benkovich, O.S.P.P.E. † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 40.4 | Appointed | Lucio Borghesi † | Bishop of Chiusi, Italy |
| 43.4 | Appointed | Simplicio Caravita, O.S.B. † | Archbishop of Amalfi, Italy |
| 70.4 | Appointed | Antonio de Morales, O.P. † | Bishop of Concepción, Chile |
| 48.4 | Confirmed | Alfonso Galaz Torrero † | Bishop of Tui, Spain |
| 58.4 | Appointed | Francesco Martini (Marini) † | Bishop of Isola, Italy |
| 43.6 | Appointed | Miguel Jerónimo de Molina y Aragonés, O.S.Io.Hieros. † | Bishop of Lérida, Spain | Bishop Emeritus |
| Appointed | Mikołaj Stefan Pac † | Bishop of Vilnius, Lithuania |
| 70.4 | Appointed | Gabriel Ramírez de Avellano, O.P. † | Bishop of Mondoñedo, Spain |
| 52.4 | Appointed | Jan Stanisław Witwicki † | Bishop of Lutsk (Łuck), Ukraine | Bishop of Poznań, Poland |
| 1 Jun | | Born | Carlo Collicola † | Spoleto, Italy | Cardinal, Cardinal-Priest of Santa Maria in Portico (Campitelli) |
| 60.4 | Died | Juan Antonio García de Palacios † | Bishop of Santiago de Cuba |
| 8 Jun | 65.4 | Confirmed | Théodore-Germain Allart, O.F.M. † | Bishop of Vence, France |
| 66.4 | Appointed | Rainutius Baschi † | Bishop of Senigallia, Italy |
| 38.4 | Appointed | Gaetano Caracciolo, C.R. † | Archbishop of Conza, Italy |
| 54.9 | Appointed | Juan de Ortega Cano Montañez y Patiño † | Bishop of Michoacán, México | Archbishop of México, Federal District |
| 52.5 | Selected | Wilhelm Egon von Fürstenberg † | Cardinal, Bishop of Strasbourg, France |
| Appointed | János Kéry, O.S.P.P.E. † | Bishop of Vác, Hungary |
| 50.4 | Appointed | Gaspare Mezzomonaco, O.S.B. † | Bishop of Tricarico, Italy |
| Appointed | Francisco Núñez de la Vega, O.P. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 10 Jun | 74.4 | Died | Alfonso de Sotomayor, O. Merc. † | Bishop of Barcelona, Spain |
| 14 Jun | 66.5 | Ordained Bishop | Rainutius Baschi † | Bishop of Senigallia, Italy |
| 15 Jun | 60.5 | Selected | Andrés de las Navas y Quevedo, O. de M. † | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| Born | Franz Georg von Schönborn † | Mainz | Archbishop of Trier, Germany |