| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 27.9 | Ordained Priest | Juan Aparicio Navarro † | Priest | Bishop of León, Spain |
| Born | Antonio Babbi † | | Bishop of Shkodrë (Scutari), Albania |
| Born | Gilles-Jean-François de Beauvau du Rivau † | | Bishop of Nantes, France |
| 21.0 | Entered | Ágoston Benkovich, O.S.P.P.E. † | Member of Order of Saint Paul the First Hermit | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| Born | David-Nicolas Bertier † | | Bishop of Blois, France |
| Born | Isidoro Bertrán García † | | Archbishop of Tarragona, Spain |
| Born | Paolo Andrea Borelli, B. † | | Bishop of Noli, Italy |
| 50.1 | Resigned | Gaston Henri de Bourbon † | Bishop-Elect of Metz, France | Former Bishop-Elect |
| Born | François de Caillebot de La Salle † | | Bishop Emeritus of Tournai {Doornik}, Belgium |
| Died | Giovanni Battista Capacci † | Bishop of Trivento, Italy |
| Died | Vicente Agustín Clavería † | Bishop of Alghero, Italy |
| 46.0 | Died | Francesco Clerico, C.R. † | Bishop of Belcastro, Italy |
| 65.0 | Died | Marco Antonio Coccini † | Bishop of Imola, Italy |
| Died | Giovanni Carlo Coppola † | Bishop of Muro Lucano, Italy |
| Born | Gabriel de Cosnac † | | Bishop Emeritus of Die, France |
| 44.6 | Ordained Bishop | Luis Crespi y Borja, C.O. † | Bishop of Orihuela, Spain | Bishop of Plasencia, Spain |
| Born | Bernard d’Abbadie d’Arbocave † | | Bishop of Acqs (Dax), France |
| 82.0 | Died | Thomas Dease † | Bishop of Meath, Ireland |
| Born | Manuel Plácido de Quirós de Porras, O.S.B. † | | Bishop of Antequera, Oaxaca, México |
| Born | Pedro Díaz de Cienfuegos † | | Bishop of Trujillo, Peru |
| Died | Francesco de’ Notari, O.M. † | Bishop of Lavello, Italy |
| 62.0 | Died | Jean-Jacques de Fleyres † | Bishop of Saint-Pons-de-Thomières, France |
| 48.0 | Appointed | Nicolas French † | Auxiliary Bishop of Santiago de Compostela, Spain | Bishop of Ferns, Ireland |
| 31.0 | Ordained Priest | Giacomo Ferdinando de Gorizzutti † | Priest of Wien, Austria | Bishop of Trieste, Italy |
| Died | Paolo de Gratiis † | Bishop of Stagno (Ston), Croatia |
| 38.0 | Ordained Priest | Johannes Holler † | Priest of Trier, Germany | Auxiliary Bishop |
| 22.2 | Ordained Priest | Philip Thomas Howard of Norfolk, O.P. † | Priest of Order of Friars Preachers | Cardinal, Cardinal-Priest of Santa Maria sopra Minerva |
| Appointed | Jean † | Bishop of Seert (Chaldean), Turkey |
| Ordained Bishop | Jean † | Bishop of Seert (Chaldean), Turkey |
| Born | Peter Karagić, O.F.M. † | | Archbishop of Skopje, North Macedonia |
| 26.0 | Ordained Priest | Johann Kaspar Kühner † | Priest | Auxiliary Bishop of Freising, Germany |
| 46.0 | Appointed | Gabriel (Havrylo) Kolenda, O.S.B.M. † | Coadjutor Bishop of Polotsk (Połock)-Vitebsk (Ukrainian), Belarus | Archbishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine |
| 46.0 | Ordained Bishop | Gabriel (Havrylo) Kolenda, O.S.B.M. † | Coadjutor Bishop of Polotsk (Połock)-Vitebsk (Ukrainian), Belarus | Archbishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine |
| Died | Mikołaj Krasicki † | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| 67.0 | Died | Fabio Lagonissa † | Titular Patriarch of Antiochia {Antioch} |
| Born | Kazimierz Łubieński † | | Bishop of Kraków, Poland |
| Born | Charles Maigrot, M.E.P. † | | Vicar Apostolic Emeritus of Fukien (Kuiceu), China |
| Died | Andrea Manca † | Archbishop of Sassari, Italy |
| 58.0 | Died | Gavino Manca Figo † | Bishop of Ampurias e Civita, Italy |
| Born | Hugh MacDermot † | | Bishop of Achonry, Ireland |
| Born | Baltasar de Mendoza y Sandoval † | | Bishop of Segovia, Spain |
| Died | Piotr Mieszkowski † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 70.0 | Died | Pietro Morari † | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia |
| Born | Denis Moriarty † | | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland |
| Born | Juan Morillo Velarde † | | Archbishop of Sassari, Italy |
| Appointed | Francisco Naranjo, O.P. † | Bishop of Puerto Rico (Porto Rico) |
| Born | Henri de Nesmond † | | Archbishop of Toulouse, France |
| Born | Pedro Nogales Dávila † | | Bishop of Tlaxcala (Puebla de los Angeles), México |
| Born | William O’Daly † | | Bishop of Kilfenora, Ireland |
| Born | Aeneas O’Leyne † | | Vicar Apostolic of Kerry (o Ardfert) e Aghadoe, Ireland |
| Ordained Bishop | Partenij Petro Petrovyc Rotosynskyj, O.S.B.M. † | Bishop of Mukachevo (Munkács) (Ruthenian), Ukraine |
| 47.0 | Died | Leonardus Severoli † | Bishop of San Severo, Italy |
| 62.0 | Died | Piotr Jan Sokołowski † | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| 44.0 | Appointed | Alfonso de Sotomayor, O. de M. † | Master General of Order of Our Lady of Mercy | Bishop of Barcelona, Spain |
| 63.0 | Resigned | Johann Sternenberg (de Dusseldorf) † | Auxiliary Bishop of Münster, Germany | Auxiliary Bishop Emeritus |
| Died | Pomponio Vetuli † | Bishop of Città Ducale, Italy |
| Born | Jean Vidovich † | | Bishop of Trogir (Traù), Croatia |
| 65.0 | Died | Francisco Villagutiérrez Chumacero, O.S.A. † | Auxiliary Bishop of Toledo, Spain |
| Born | Gedeon Woyna-Orański, O.S.B.M. † | | Bishop of Chełm and Bełz (Ukrainian), Poland |
| Born | Dionizy Żabokrzycki † | | Bishop of Lutsk and Ostroh (Ukrainian), Ukraine |
| 5 Jan | 53.0 | Died | Girolamo Verospi † | Cardinal, Bishop of Osimo, Italy |
| 8 Jan | | Appointed | Sallustio Cherubini † | Bishop of Città Ducale, Italy |
| Appointed | Rodrigo Cruzado Caballero † | Auxiliary Bishop of Cuenca, Spain |
| Appointed | Rodrigo Cruzado Caballero † | Titular Bishop of Usula | Auxiliary Bishop of Cuenca, Spain |
| 36.0 | Appointed | Thomas Tomassoni, O.P. † | Bishop of Umbriatico (Umbriaticum), Italy |
| 51.2 | Appointed | Petronio Veroni, O.S.A. † | Bishop of Boiano, Italy |
| 14 Jan | 31.0 | Ordained Bishop | Denis Sanguin de Livry † | Bishop of Senlis, France |
| 21 Jan | | Ordained Bishop | Sallustio Cherubini † | Bishop of Città Ducale, Italy |
| Ordained Bishop | Rodrigo Cruzado Caballero † | Titular Bishop of Usula | Auxiliary Bishop of Cuenca, Spain |
| Ordained Bishop | Francisco de Godoy † | Bishop of Ayacucho o Huamanga (Guamanga), Peru | Bishop of Trujillo, Peru |
| 36.0 | Ordained Bishop | Thomas Tomassoni, O.P. † | Bishop of Umbriatico (Umbriaticum), Italy |
| 51.3 | Ordained Bishop | Petronio Veroni, O.S.A. † | Bishop of Boiano, Italy |
| 28 Jan | | Born | Johann Christoph Haus † | | Auxiliary Bishop of Basel, Switzerland |
| Feb | 52.9 | Resigned | Fabio Chigi † | Bishop of Nardò, Italy | Pope (Roma {Rome}, Italy) |
| 2 Feb | 53.0 | Died | Guglielmo Gaddi † | Bishop of Bisceglie, Italy |
| 4 Feb | 29.8 | Ordained Bishop | Girolamo Boncompagni † | Cardinal, Archbishop of Bologna, Italy |
| 6 Feb | | Born | Francesco Pignatelli (Sr.), C.R. † | | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 7 Feb | 33.1 | Succeeded | Karl Kaspar von Leyen-Hohengeroldseck † | Archbishop of Trier, Germany |
| 84.1 | Died | Philipp Christoph von Sötern † | Bishop of Speyer, Germany |
| 10 Feb | | Born | Antonio Paternò † | | Archbishop of Lanciano, Italy |
| 13 Feb | | Born | Johann Philipp von Greifenclau zu Vollraths † | | Bishop of Würzburg, Germany |
| 19 Feb | 38.4 | Elevated to Cardinal | Baccio Aldobrandini † | Cardinal, Cardinal-Priest of Santi Nereo ed Achilleo |
| 36.3 | Elevated to Cardinal | Giberto Borromeo † | In Pectore | Cardinal, Cardinal-Priest of Santi Giovanni e Paolo |
| 53.0 | Elevated to Cardinal | Fabio Chigi † | Pope (Roma {Rome}, Italy) |
| 50.1 | Elevated to Cardinal | Giacomo Corradi † | Cardinal, Bishop Emeritus of Jesi, Italy |
| Appointed | Leonard Dati † | Bishop of Montepulciano, Italy |
| Appointed | Teodoro Fantoni, C.R.L. † | Bishop of San Marco (Argentano), Italy |
| 38.4 | Elevated to Cardinal | Jean-François-Paul de Gondi de Retz † | Cardinal, Archbishop Emeritus of Paris, France |
| 35.9 | Elevated to Cardinal | Friedrich von Hessen-Darmstadt, O.S.Io.Hieros. † | Cardinal, Bishop of Wrocław (Breslau), Poland |
| 39.9 | Elevated to Cardinal | Lorenzo Imperiali † | In Pectore | Cardinal, Cardinal-Priest of San Crisogono |
| 45.1 | Elevated to Cardinal | Giovanni Girolamo Lomellini † | Cardinal, Cardinal-Priest of Sant’Onofrio |
| 43.1 | Elevated to Cardinal | Luigi Omodei (Sr.) † | Cardinal, Cardinal-Priest of San Lorenzo in Lucina |
| 41.8 | Elevated to Cardinal | Pietro Vito Ottoboni † | Pope (Roma {Rome}, Italy) |
| 66.3 | Elevated to Cardinal | Domingo Pimentel Zúñiga, O.P. † | Cardinal, Archbishop Emeritus of Sevilla {Seville}, Spain |
| Confirmed | Lorenzo Reynoso † | Archbishop of Brindisi, Italy |
| 32.6 | Elevated to Cardinal | Marcello Santacroce † | Cardinal, Bishop of Tivoli, Italy |
| Appointed | Ascanio Ugolini † | Bishop of Muro Lucano, Italy |
| 20 Feb | | Born | Andrés Orueta Barasorda † | | Bishop of Valladolid, Spain |
| 22 Feb | 42.1 | Appointed | Jakiv Suša, O.S.B.M. † | Bishop of Chełm and Bełz (Ukrainian), Poland |
| 24 Feb | 24.5 | Ordained Priest | Bartolomé García de Escañuela, O.F.M. Obs. † | Priest of Order of Observant Friars Minor | Bishop of Durango, México |
| 25 Feb | | Ordained Bishop | Leonard Dati † | Bishop of Montepulciano, Italy |
| Ordained Bishop | Lorenzo Reynoso † | Archbishop of Brindisi, Italy |
| Mar | 45.1 | Died | Carlo Diotallevi † | Bishop of Strongoli, Italy |
| 3 Mar | | Ordained Bishop | Teodoro Fantoni, C.R.L. † | Bishop of San Marco (Argentano), Italy |
| Ordained Bishop | Ascanio Ugolini † | Bishop of Muro Lucano, Italy |
| 4 Mar | 49.1 | Appointed | Juan Bravo Lasprilla † | Bishop of Lugo, Spain | Bishop of Cartagena (en España) |
| 10 Mar | 66.1 | Died | Patrick Comerford, O.S.A. † | Bishop of Waterford and Lismore, Ireland |
| 11 Mar | 41.8 | Installed | Pietro Vito Ottoboni † | Cardinal-Priest of San Salvatore in Lauro | Pope (Roma {Rome}, Italy) |
| 12 Mar | 38.5 | Installed | Baccio Aldobrandini † | Cardinal-Priest of Sant’Agnese in Agone | Cardinal, Cardinal-Priest of Santi Nereo ed Achilleo |
| 53.0 | Installed | Fabio Chigi † | Cardinal-Priest of Santa Maria del Popolo | Pope (Roma {Rome}, Italy) |
| 50.1 | Installed | Giacomo Corradi † | Cardinal-Priest of Santa Maria in Traspontina | Cardinal, Bishop Emeritus of Jesi, Italy |
| 45.1 | Installed | Giovanni Girolamo Lomellini † | Cardinal, Cardinal-Priest of Sant’Onofrio |
| 43.2 | Appointed | Luigi Omodei (Sr.) † | Cardinal-Priest of Sant’Alessio | Cardinal, Cardinal-Priest of San Lorenzo in Lucina |
| 32.7 | Installed | Marcello Santacroce † | Cardinal-Priest of Santo Stefano al Monte Celio | Cardinal, Bishop of Tivoli, Italy |
| 14 Mar | 56.8 | Confirmed | György Szelepcsényi † | Bishop of Nitra, Slovakia | Archbishop of Esztergom, Hungary |
| 15 Mar | 62.6 | Selected | Francisco Gabaldá Guasch, O.S.H. † | Bishop of Segorbe, Spain |
| Born | Giorgio Teodori † | | Bishop of Sapë, Albania |
| Born | Aleksander Benedykt Wyhowski † | | Bishop of Lutsk (Łuck), Ukraine |
| 16 Mar | 24.4 | Ordained Priest | Jacques-Bénigne Bossuet † | Priest | Bishop of Meaux, France |
| 23.5 | Ordained Deacon | Paulinus Mayr † | Deacon of Brixen {Bressanone}, Italy | Bishop |
| 53.2 | Selected | Pachomiusz Woyna-Orański, O.S.B.M. † | Coadjutor Bishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine | Bishop of Pińsk-Turaŭ (Ukrainian), Belarus |
| 17 Mar | 21.2 | Ordained Deacon | Louis Aube de Roquemartine † | Deacon | Bishop of Saint-Paul-Trois-Châteaux, France |
| 28 Mar | | Born | Giovanni Lorenzo Tilli † | | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 30 Mar | 23.5 | Ordained Priest | Paulinus Mayr † | Priest of Brixen {Bressanone}, Italy | Bishop |
| 1 Apr | | Selected | Jean de Miossens de Sansons † | Bishop of Oloron (Oloron-Sainte-Marie), France |
| 3 Apr | 66.9 | Resigned | Diego Arce Reinoso † | Bishop of Plasencia, Spain | Bishop Emeritus |
| 6 Apr | 41.2 | Died | Édouard Molé † | Bishop of Bayeux, France |
| 7 Apr | | Born | Lorenzo Corsini † | | Pope (Roma {Rome}, Italy) |
| 8 Apr | 56.2 | Appointed | Benedek Kisdy † | Bishop of Eger, Hungary |
| 11 Apr | 34.5 | Selected | Lothar Friedrich von Metternich-Burscheid † | Bishop of Speyer, Germany | Archbishop of Mainz, Germany |
| 72.2 | Died | Hernando de Ramírez y Sánchez, O.SS.T. † | Bishop of Panamá |
| 13 Apr | 37.2 | Appointed | Giuseppe (Francisco Maria) Sanfelice † | Apostolic Nuncio to Germany | Archbishop of Cosenza, Italy |
| 16 Apr | 67.2 | Died | Augustinus Basrci (Bagesius), O.P. † | Archbishop of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia |
| 19 Apr | 91.2 | Died | Marcello Lante della Rovere † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 21 Apr | | Born | Gennaro Crespino † | | Bishop of Squillace, Italy |
| 61.3 | Died | Claude de la Magdelaine † | Bishop of Autun, France |
| 24 Apr | 36.0 | Died | Pierre de Gassion † | Bishop of Oloron (Oloron-Sainte-Marie), France |
| 26 Apr | 67.4 | Died | Jean-Pierre Camus † | Bishop Emeritus of Belley, France |
| 29 Apr | 72.4 | Appointed | Federico Baldissera Bartolomeo Cornaro † | Cardinal, Cardinal-Bishop of Albano |
| 57.1 | Appointed | Carlo de’ Medici † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 52.3 | Appointed | Gaspare Litago † | Bishop of Ampurias e Civita, Italy | Archbishop of Sassari, Italy |
| Confirmed | Marcelo Lopez de Azcona † | Archbishop of México, Federal District |
| 67.6 | Appointed | Giulio Roma † | Cardinal-Bishop of Ostia (e Velletri) | Cardinal, Bishop of Tivoli, Italy |
| 64.3 | Appointed | Giulio Cesare Sacchetti † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Prefect of the Congregation of the Council |
| 70.3 | Appointed | Diego Serrano Sotomayor, O. de M. † | Bishop of Guadix, Spain |
| 58.0 | Appointed | Bernardino Spada † | Cardinal-Bishop of Frascati | Cardinal, Cardinal-Bishop of Palestrina |
| 6 May | 52.3 | Succeeded | Prokip Chmielowski (Chmeljovskyj) † | Bishop of Przemyśl, Sambor, et Sanok (Ukrainian), Poland |
| 82.3 | Died | Atanasij Aleksander Krupeckyj † | Bishop of Przemyśl, Sambor, et Sanok (Ukrainian), Poland |
| 53.3 | Confirmed | Pachomiusz Woyna-Orański, O.S.B.M. † | Coadjutor Bishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine | Bishop of Pińsk-Turaŭ (Ukrainian), Belarus |
| 8 May | | Selected | Giovanni Camponeschi, O.F.M. † | Bishop of Mottola (Motula), Italy |
| 10 May | | Selected | Nicolas de Valavoir (Vallavoire) † | Bishop of Riez, France |
| 12 May | 44.3 | Ordained Bishop | Giovanni Stefano Donghi † | Bishop of Ajaccio, France | Cardinal, Bishop of Ferrara, Italy |
| 13 May | | Appointed | Giuseppe Boncore † | Bishop of Lavello, Italy |
| Appointed | Giovanni Alfonso Puccinelli, C.R.L. † | Archbishop of Manfredonia, Italy |
| Appointed | Valerius Wilezogerzosi † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| Appointed | Valerius Wilezogerzosi † | Titular Bishop of Margarita | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 15 May | | Born | Giacomo Boncompagni † | | Cardinal, Archbishop of Bologna, Italy |
| Died | Francesco Durazzi † | Bishop of Brugnato, Italy |
| 19 May | 43.3 | Appointed | Enrico Borghi, O.S.M. † | Prior General of Order of Friar Servants of Mary | Bishop of Alife, Italy |
| 21 May | | Ordained Bishop | Giuseppe Boncore † | Bishop of Lavello, Italy |
| Ordained Bishop | Giovanni Alfonso Puccinelli, C.R.L. † | Archbishop of Manfredonia, Italy |
| 47.7 | Ordained Bishop | François de Rouxel de Médavy † | Bishop of Sées {Séez}, France | Archbishop of Rouen, France |
| 25 May | | Born | Franz Theodor von Guttenberg † | | Auxiliary Bishop of Augsburg, Germany |
| Born | Johann Philipp von Lamberg † | | Cardinal, Bishop of Passau, Germany |
| 27 May | 58.3 | Selected | Pierre de Marca † | Archbishop of Toulouse, France | Archbishop of Paris, France |
| 30 May | 41.5 | Appointed | Pietro Vidoni (Sr.) † | Apostolic Nuncio to Poland | Cardinal, Bishop Emeritus of Lodi, Italy |
| Jun | 38.1 | Resigned | Antonio Bichi † | Apostolic Internuncio to Belgium | Cardinal, Bishop of Osimo, Italy |
| 17 Jun | 43.7 | Appointed | Alfonso Michele Litta † | Cardinal, Archbishop of Milano {Milan}, Italy |
| 22 Jun | | Born | Giovanbattista Carafa † | | Bishop of Nocera de’ Pagani, Italy |
| 24 Jun | 43.7 | Ordained Bishop | Alfonso Michele Litta † | Cardinal, Archbishop of Milano {Milan}, Italy |
| 26 Jun | | Born | Wilhelm Franz Johann Bertrand von Nesselrode † | | Bishop of Pécs, Hungary |
| Born | Pier Paolo Mastrilli † | | Bishop of Mottola (Motula), Italy |