| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Francesco Maria Abbiati, C.R.L. † | Bishop of Bobbio, Italy |
| Born | Antonio Aiello † | Feroleto | Bishop of Montepeloso, Italy |
| Born | Humbert Ancelin † | Paris | Bishop Emeritus of Tulle, France |
| Died | Camillo Baldi † | Bishop of Nicotera, Italy |
| Born | Guillaume Bochart de Champigny † | Paris | Bishop of Valence, France |
| Born | Giovanni Innocenzo Carussio † | Putignano | Bishop of Muro Lucano, Italy |
| Born | Bartolomeo Castelli, C.R. † | Palermo | Bishop of Mazara del Vallo, Italy |
| Died | Joachim d’Estaing † | Bishop of Clermont, France |
| Appointed | Louis d’Estaing † | Bishop of Clermont, France |
| Born | Giorgio Emo † | Venice | Archbishop of Corfù, Greece |
| Born | Marcus Giorga † | Antivari | Archbishop of Bar (Antivari), Montenegro |
| Born | Charles-Bénigne Hervé † | Paris | Bishop Emeritus of Gap, France |
| Died | Marino Ibrisimoich, O.F.M. † | Bishop of Beograd {Belgrade}, Serbia |
| Born | Mauro de Larreátegui y Colón, O.S.B. † | Madrid, Spain | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| Born | Henri-Augustin Le Pileur † | Paris | Bishop Emeritus of Saintes, France |
| Born | Wilhelm von Leslie † | | Bishop of Ljubljana, Slovenia |
| 50.0 | Died | Raphael Levacovich, O.F.M. † | Archbishop of Achrida (Ochrida), Bulgaria |
| Installed | Hernando de Lobo Castrillo, O.F.M. † | Bishop of Puerto Rico (Porto Rico) |
| 57.0 | Died | Angelo Melchiori (Melchiorre) † | Bishop of Castellaneta, Italy |
| Appointed | Raffaele de Palma † | Bishop of Oria, Italy |
| Appointed | Onofrio de Ponte † | Bishop of Lettere (-Gragnano), Italy |
| Born | Stanislaw Szembek † | Kraków | Archbishop of Gniezno, Poland |
| Born | Michał Szembek † | Morawicy | Auxiliary Bishop of Kraków, Poland |
| 45.0 | Appointed | Mátyás Tarnóczy † | Official of Spiš, Slovakia | Bishop of Vác, Hungary |
| 45.0 | Ordained Bishop | Mátyás Tarnóczy † | Bishop of Csanád, Hungary | Bishop of Vác, Hungary |
| Born | Thomas Vidoni † | Cremonen | Titular Archbishop of Edessa in Osrhoëne |
| 2 Jan | | Ordained Bishop | Giovanni Battista Alfieri † | Bishop of Fano, Italy |
| Ordained Bishop | Carlo Azzolini † | Bishop of Bagnoregio (Bagnorea), Italy | Bishop Emeritus |
| 61.0 | Ordained Bishop | Vincenzo Rabatta † | Archbishop of Chieti, Italy |
| 7 Jan | 52.6 | Selected | Karel van den Bosch † | Bishop of Brugge {Bruges}, Belgium | Bishop of Gent {Ghent, Gand}, Belgium |
| 10 Jan | 45.0 | Confirmed | Charles-François d’Anglure de Bourlémont † | Bishop of Aire, France | Archbishop of Toulouse, France |
| Born | Carlo Ottaviano Guasco † | Alessandria | Bishop of Cremona, Italy |
| 53.0 | Appointed | Pompeo Mignucci, O.S.H. † | Archbishop (Personal Title) of Acquapendente, Italy | Bishop |
| 65.1 | Appointed | Juan del Pozo Horta, O.P. † | Bishop of León, Spain | Bishop of Segovia, Spain |
| 18 Jan | | Born | Benito Noriega, O.F.M. † | Oviedo, Spain | Bishop of Acerra, Italy |
| 27 Jan | 60.1 | Died | Marcus Bandulovi (Bandinus), O.F.M. † | Titular Bishop of Marcianopolis |
| 29 Jan | | Born | Francisco del Rincón, O.M. † | Borox, Spain | Archbishop of Santafé en Nueva Granada, Colombia |
| 2 Feb | | Born | Biagio Gambaro † | Napoli | Bishop of Telese o Cerreto Sannita, Italy |
| 13 Feb | | Died | Ercole Rangoni † | Archbishop of Conza, Italy |
| 14 Feb | | Appointed | Ascanio de Gasperis † | Bishop of Marsi, Italy |
| 51.1 | Appointed | Franciszek Dołmat Isajkowski † | Bishop of Smoleńsk, Poland |
| 56.1 | Appointed | Francesco Nerli (Sr.) † | Bishop of Pistoia, Italy | Cardinal, Archbishop of Firenze {Florence}, Italy |
| 61.1 | Appointed | Alessandro Rossi † | Bishop of Ariano, Italy |
| 25 Feb | 65.1 | Died | Bartolomé González Soltero † | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| 28 Feb | 66.2 | Died | Johann Hasius von Lichenfeld † | Prefect of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany |
| Mar | | Died | Andrea Caputo † | Bishop of Lettere (-Gragnano), Italy |
| Died | Diego Requeséns † | Bishop of Mazara del Vallo, Italy | Titular Archbishop |
| 4 Mar | | Born | Giovanni Battista Costa † | Januen | Bishop of Sagone (Sagona), France |
| 6 Mar | 59.2 | Ordained Bishop | Diego López de la Vega † | Bishop of Badajoz, Spain | Bishop of Coria, Spain |
| 8 Mar | 71.1 | Died | Antonio Tornielli † | Bishop of Novara, Italy |
| 12 Mar | 25.5 | Ordained Priest | Alphonse de Berghes † | Priest | Archbishop of Mechelen, Belgium |
| 13 Mar | 52.7 | Resigned | Ranuccio (Ranuzio) Scotti Douglas † | Bishop of Borgo San Donnino, Italy | Bishop Emeritus |
| 14 Mar | 35.2 | Elevated to Cardinal | Antonio de Aragón-Córdoba-Cardona y Fernández de Córdoba † | Cardinal, Cardinal-Deacon |
| 24 Mar | 45.2 | Ordained Bishop | Charles-François d’Anglure de Bourlémont † | Bishop of Aire, France | Archbishop of Toulouse, France |
| Apr | | Born | Giovanni Gambi † | Ravennaten | Bishop of Ascoli Piceno, Italy |
| 1 Apr | 68.3 | Died | Johann Nikolaus Claessens † | Auxiliary Bishop of Münster, Germany |
| 67.3 | Died | Andrzej Szołdrski † | Bishop of Poznań, Poland |
| 2 Apr | 50.3 | Appointed | Martin Saudrius von Sternfeld † | Prefect of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany | Prefect Emeritus |
| 4 Apr | 52.4 | Appointed | Henri Arnauld † | Bishop of Angers, France |
| 63.3 | Appointed | Andrés García de Zurita † | Bishop of Trujillo, Peru | Bishop of Trujillo, Peru |
| 38.9 | Appointed | Bl. Benedetto Odescalchi † | Bishop of Novara, Italy | Pope (Roma {Rome}, Italy) |
| 9 Apr | 52.3 | Died | Gaspare Mattei † | Cardinal, Cardinal-Priest of Santa Cecilia |
| 10 Apr | | Born | Sebastiano Antonio Tanara † | Rome, Italy | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 15 Apr | | Born | Ferdinando de Rojas (Roxas) † | Curiel | Bishop of Vigevano, Italy |
| 16 Apr | 23.7 | Ordained Priest | Karl Franz Neander von Petersheide † | Priest of Wrocław (Breslau), Poland | Auxiliary Bishop |
| 31.0 | Ordained Priest | Pierre van den Perre † | Priest | Bishop of Namur {Namen}, Belgium |
| 25.2 | Ordained Priest | Henri Van Halmaele † | Priest | Bishop of Ypres (Ieper), Belgium |
| 17 Apr | 52.9 | Confirmed | Karel van den Bosch † | Bishop of Brugge {Bruges}, Belgium | Bishop of Gent {Ghent, Gand}, Belgium |
| 20 Apr | 77.3 | Died | David Rothe † | Bishop of Ossory, Ireland |
| 23 Apr | 36.3 | Selected | Kazimierz Florian Czartoryski † | Bishop of Poznań, Poland | Archbishop of Gniezno, Poland |
| 74.3 | Died | Jerónimo Domín Funes, O. Carm. † | Bishop of Gaeta, Italy |
| 2 May | | Appointed | Ferdinando Apicello † | Bishop of Ruvo (Ruo)(di Puglia), Italy | Bishop of Larino, Italy |
| Appointed | Lodovico (Francesco) Centofiorini † | Bishop of Nicotera, Italy |
| Appointed | Gerolamo Corio † | Bishop of Parma, Italy |
| Appointed | Francisco de Godoy † | Bishop of Ayacucho o Huamanga (Guamanga), Peru | Bishop of Trujillo, Peru |
| 87.3 | Died | Jerónimo Fernando † | Bishop of Funchal, Portugal |
| 36.3 | Appointed | Giovanni Francesco Ferrari † | Bishop of Isola, Italy |
| Appointed | Michele Angelo Vincentini † | Bishop of Gerace, Italy | Bishop Emeritus |
| 8 May | | Ordained Bishop | Ferdinando Apicello † | Bishop of Ruvo (Ruo)(di Puglia), Italy | Bishop of Larino, Italy |
| Ordained Bishop | Lodovico (Francesco) Centofiorini † | Bishop of Nicotera, Italy |
| 36.4 | Ordained Bishop | Giovanni Francesco Ferrari † | Bishop of Isola, Italy |
| Ordained Bishop | Michele Angelo Vincentini † | Bishop of Gerace, Italy | Bishop Emeritus |
| 25 May | | Born | Jerónimo del Valle Ledesma † | Lucena | Bishop of Almería, Spain |
| 30 May | 60.4 | Died | Pedro (de Santiago) Anglada Sánchez, O.S.A. † | Bishop of Lérida, Spain |
| Appointed | Rodrigo Cárdenas, O.P. † | Bishop of Nueva Segovia, Philippines |
| Appointed | Juan Merlo de la Fuente † | Bishop of Comayagua, Honduras |
| 55.4 | Appointed | Francesco Peretti di Montalto † | Cardinal, Archbishop of Monreale, Italy |
| Jun | | Died | Augustin Potier † | Bishop of Beauvais, France |
| 3 Jun | | Born | Louis-Joseph Adhémar de Monteil de Grignan † | Valentinen | Bishop of Carcassonne, France |
| 5 Jun | | Ordained Bishop | Gerolamo Corio † | Bishop of Parma, Italy |
| 6 Jun | | Born | Giuseppe Guerra † | Sarzana | Bishop Emeritus of Alatri, Italy |
| 7 Jun | 55.4 | Ordained Bishop | Francesco Peretti di Montalto † | Cardinal, Archbishop of Monreale, Italy |
| 8 Jun | 66.4 | Died | Niccolò Sacchetti † | Bishop of Volterra, Italy |
| 11 Jun | 45.4 | Ordained Priest | Giambattista Candiotti † | Priest | Archbishop of Urbino, Italy |
| 20 Jun | 79.5 | Died | Alexandre Scappi † | Bishop of Piacenza, Italy |
| 26 Jun | 66.5 | Died | Paolo Coccapani † | Bishop of Reggio Emilia, Italy |
| 27 Jun | | Appointed | Francesco Perotti † | Archbishop of Dubrovnik (Ragusa), Croatia |
| 50.5 | Appointed | Pietro Rota † | Bishop of Lucca, Italy |
| 45.5 | Appointed | Leonardus Severoli † | Bishop of San Severo, Italy |
| 49.5 | Died | Mario Theodoli † | Cardinal, Bishop Emeritus of Imola, Italy |
| 29 Jun | 52.7 | Ordained Bishop | Henri Arnauld † | Bishop of Angers, France |