| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 70.0 | Resigned | Paolo Arese, C.R. † | Bishop of Tortona, Italy | Bishop Emeritus |
| Born | Miguel Bayot, O.F.M. † | Belmonte, Spain | Bishop of Cebu, Philippines |
| Died | Miguel Beltrán Castellón † | Bishop of Ales e Terralba, Italy |
| Died | Francesco Bianchi † | Bishop of Sapë, Albania |
| Born | Andrea Brancaccio, C.R. † | Napoli | Archbishop of Cosenza, Italy |
| Born | Konstanty Kazimierz Brzostowski † | Vilnen | Bishop of Vilnius, Lithuania |
| Born | Gaetano Caracciolo, C.R. † | Napoli | Archbishop of Conza, Italy |
| 31.0 | Appointed | Gilbert de Choiseul du Plessis Praslin † | Bishop of (Saint-Bernard de) Comminges, France | Bishop of Tournai {Doornik}, Belgium |
| Born | Francisco Cisneros y Mendoza † | | Auxiliary Bishop of Lima, Peru |
| Born | Joannes Dominicus Callegari † | Venice | Bishop of Šibenik (Knin), Croatia |
| Died | Clemente Confetti (Confetto) † | Bishop of Acerno, Italy |
| Died | Filippo Cansacchi (Consacchi) † | Bishop of Gravina (di Puglia), Italy |
| 72.0 | Resigned | Pier Paolo Crescenzi † | Bishop of Orvieto, Italy | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 75.0 | Died | Giacomo Della Rocca † | Bishop of Termia (Thermae), Greece |
| Born | Jean-Jacques d’Obeilh (d’Aubeil) † | Moulins en Bourbonnais | Bishop of Orange, France |
| 52.0 | Died | Giulio del Pozzo † | Bishop of Accia and Mariana, France |
| Born | Juan Victores de Velasco, O.S.B. † | Burgen | Bishop of Trujillo, Peru |
| 76.0 | Died | Ennio Filonardi † | Bishop of Ferentino, Italy |
| Born | Giovanni Fontana † | Modigliana | Bishop of Cesena, Italy |
| Born | Tomaso Giustiniani † | Chio | Bishop of Nebbio, France |
| Born | Pedro Granell † | Tortosa | Bishop of Barbastro, Spain |
| Born | Louis Habert de Montmort † | Paris | Bishop of Perpignan-Elne, France |
| Born | Francesco Onofrio Hodierna † | Napoli | Bishop Emeritus of Valva, Italy |
| Died | Hugues de Labatut † | Bishop of (Saint-Bernard de) Comminges, France |
| Died | Alexander Liparuli † | Bishop of Satriano e Campagna, Italy |
| Appointed | Antonio Manunta † | Bishop of Ales e Terralba, Italy |
| 67.0 | Died | Giacomo Marenco † | Bishop of Nice, France |
| 59.0 | Died | Annibale Mascambruno † | Bishop of Castellammare di Stabia, Italy |
| Died | Ferdinando Millini † | Bishop of Imola, Italy |
| Died | Leonardo Mocenigo (Mozzenigo) † | Archbishop of Candia, Greece |
| Ordained Bishop | Pedro Orozco, O.F.M. † | Titular Bishop of Temnus | Auxiliary Bishop of Toledo, Spain |
| Born | Antoni Pascual † | Gerunden | Bishop of Vic, Spain |
| 81.0 | Died | Giacomo Passamar † | Archbishop of Sassari, Italy |
| Born | Charles de Pradel † | Dauphiné | Bishop of Montpellier, France |
| Born | José Gregorio de Rojas y Velázquez † | Aranda de Duero | Bishop of Plasencia, Spain |
| Born | José Sicardo, O.S.A. † | Madrid, Spain | Archbishop of Sassari, Italy |
| Born | Franz Caspar von Stadion † | Solothurn | Bishop of Lavant, Slovenia |
| Died | Aleksander Trzebiński † | Bishop of Przemyśl, Poland |
| Born | Gerolamo Ventimiglia, C.R. † | Palermo | Bishop of Lipari, Italy |
| Born | Giovanni Battista Visconti Aicardi, B. † | Milano | Bishop of Novara, Italy |
| Born | Sigmund Ignaz von Wolkenstein-Trostburg † | | Bishop of Chiemsee, Germany |
| 3 Jan | 51.0 | Selected | Miguel de Torres, O.P. † | Bishop of Potenza, Italy |
| 4 Jan | | Born | Alfonso de Aloysio † | Montelparo | Bishop of Squillace, Italy |
| 5 Jan | | Born | Jean-François Salgues de Valderies de Lescure † | Lescure-d'Albigeois | Bishop of Luçon, France |
| 10 Jan | | Born | Celestino Sfondrati, O.S.B. † | Milan, Italy | Cardinal, Cardinal-Priest of Santa Cecilia |
| 18 Jan | 56.0 | Died | Benedetto Ubaldi † | Cardinal, Bishop Emeritus of Perugia, Italy |
| 24 Jan | | Died | Juan de Santander, O.F.M. † | Bishop of Mallorca, Spain |
| 25 Jan | 52.1 | Died | Alessandro Cesarini (Jr.) † | Cardinal, Bishop Emeritus of Viterbo e Tuscania, Italy |
| 31 Jan | 30.4 | Ordained Bishop | Jean-François-Paul de Gondi de Retz † | Titular Archbishop of Corinthus | Cardinal, Archbishop Emeritus of Paris, France |
| Feb | | Born | Pierre de La Broue † | Toulouse | Bishop of Mirepoix, France |
| 13 Feb | | Born | Sigmund Christoph von Herberstein † | Graz | Bishop Emeritus of Ljubljana, Slovenia |
| 14 Feb | 62.4 | Ordained Bishop | Damián Lopez de Haro y Villarda, O.SS.T. † | Bishop of Puerto Rico (Porto Rico) |
| 17 Feb | | Born | Vartan Hunanian † | | Coadjutor Archbishop of Lviv (Armenian), Ukraine |
| 19 Feb | | Selected | Hector d’Ouvrier † | Bishop of Nîmes, France |
| Appointed | Clemente Del Pezzo, C.R. † | Bishop of Porphyreon | Bishop of Castellammare di Stabia, Italy |
| Mar | 22.2 | Ordained Priest | James Phelan † | Priest | Bishop of Ossory, Ireland |
| 1 Mar | | Selected | Giovanni Torresiglia (Torrecilla Manso) † | Archbishop of Monreale, Italy |
| 5 Mar | 28.2 | Appointed | Franz von Lodron † | Bishop of Gurk, Austria |
| 6 Mar | | Born | Pierre de Langle † | Évreux | Bishop of Boulogne (-Sur-Mer), France |
| 28.2 | Ordained Bishop | Franz von Lodron † | Bishop of Gurk, Austria |
| 12 Mar | 30.5 | Ordained Priest | Adrian von Riedmatten (III) † | Priest of Sion {Sitten}, Switzerland | Bishop |
| 14 Mar | 53.2 | Ordained Bishop | Diego Chueca † | Bishop of Barbastro, Spain | Bishop of Teruel, Spain |
| 40.0 | Appointed | Girolamo Colonna † | Cardinal-Deacon of Sant’Angelo in Pescheria | Cardinal, Archbishop Emeritus of Bologna, Italy |
| 61.2 | Appointed | Nicolò Guidi di Bagno † | Titular Archbishop of Athenae | Cardinal, Bishop Emeritus of Senigallia, Italy |
| 58.1 | Appointed | Marzio Ginetti † | Cardinal-Deacon of Sant’Eustachio | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 28.8 | Appointed | Virginio Orsini, O.S.Io.Hieros. † | Cardinal-Deacon of Santa Maria in Cosmedin | Cardinal, Cardinal-Bishop of Frascati |
| 44.1 | Appointed | Giulio Rospigliosi † | Titular Archbishop of Tarsus | Pope (Roma {Rome}, Italy) |
| 55.2 | Appointed | Alessandro Sperelli, C.O. † | Bishop of Gubbio, Italy |
| 23 Mar | 66.2 | Died | Juan García Arlés † | Bishop of Orihuela, Spain |
| 27 Mar | | Died | Louis de Bretel † | Archbishop of Aix, France |
| 28 Mar | 55.2 | Died | Paulus Aldringen † | Auxiliary Bishop of Strasbourg, France |
| 68.8 | Died | Diego Salcedo Benacos † | Bishop of Astorga, Spain |
| 29 Mar | 26.8 | Ordained Deacon | Federico Borromeo (Jr.) † | Deacon | Cardinal, Secretary of the Secretariat of State |
| 61.2 | Ordained Bishop | Nicolò Guidi di Bagno † | Titular Archbishop of Athenae | Cardinal, Bishop Emeritus of Senigallia, Italy |
| 44.2 | Ordained Bishop | Giulio Rospigliosi † | Titular Archbishop of Tarsus | Pope (Roma {Rome}, Italy) |
| 31 Mar | 40.6 | Selected | François Adhémar de Monteil de Grignan † | Archbishop of Arles, France |
| Apr | | Died | Carlo Carafa † | Bishop of Aversa, Italy |
| 3 Apr | | Appointed | Gianfrancesco Morosini † | Patriarch of Venezia {Venice}, Italy |
| 62.3 | Died | Andreas de Sauzay † | Titular Bishop of Bethleem |
| 6 Apr | 38.6 | Selected | Wacław Leszczyński † | Bishop of Warmia (Ermland), Poland | Archbishop of Gniezno, Poland |
| 9 Apr | | Born | Marquard Rudolf von Rodt † | Konstanz | Bishop of Konstanz {Constance}, Germany |
| 15 Apr | 36.3 | Selected | Ferdinand de Neufville de Villeroy † | Coadjutor Bishop of Saint-Malo, France | Bishop of Chartres, France |
| 18 Apr | 58.5 | Appointed | Juan Cebrián Pedro, O. de M. † | Archbishop of Zaragoza, Spain |
| 34.3 | Appointed | Augustinus Donghi, C.R. † | Bishop of Aleria, France |
| 69.3 | Appointed | Crispin Fuk von Hradiste, O. Praem. † | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 69.3 | Appointed | Crispin Fuk von Hradiste, O. Praem. † | Titular Bishop of Trapezus | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| Appointed | Pietro Mariani † | Bishop of Senj (-Modruš), Croatia |
| 56.3 | Appointed | Pietro Marioni † | Bishop of Telese o Cerreto Sannita, Italy | Bishop Emeritus |
| Appointed | Sigismondo Miaschoviski, O.P. † | Titular Archbishop of Chersonesus in Zechia |
| Confirmed | Etienne de Puget † | Bishop of Marseille, France |
| 52.0 | Appointed | Deodato Scaglia, O.P. † | Bishop of Alessandria (della Paglia), Italy |
| 38.7 | Confirmed | Johann Philipp von Schönborn † | Bishop of Würzburg, Germany | Archbishop of Mainz, Germany |
| 51.3 | Confirmed | Miguel de Torres, O.P. † | Bishop of Potenza, Italy |
| 23 Apr | 61.3 | Appointed | Nicolò Guidi di Bagno † | Apostolic Nuncio to France | Cardinal, Bishop Emeritus of Senigallia, Italy |
| May | | Born | François-Joseph de Grammont † | Chastillon | Archbishop of Besançon, France |
| Born | Marcus de Ostos, O. de M. † | Ecija, Spain | Archbishop of Salerno, Italy |
| 2 May | | Appointed | Anthyme Denis de Cohon † | Archbishop of Dol, France | Bishop of Nîmes, France |
| 50.8 | Installed | Achille d’Estampes de Valançay † | Cardinal, Cardinal-Deacon of Sant’Adriano al Foro |
| Confirmed | Hector d’Ouvrier † | Bishop of Nîmes, France |
| 60.4 | Installed | Juan de Lugo y de Quiroga, S.J. † | Cardinal-Priest of Santo Stefano al Monte Celio | Cardinal, Cardinal-Priest of Santa Balbina |
| Appointed | Giacomo Raimondi † | Bishop of Melfi e Rapolla, Italy |
| Appointed | Wojciech Tolibowski † | Auxiliary Bishop of Płock, Poland | Bishop of Poznań, Poland |
| Appointed | Wojciech Tolibowski † | Titular Bishop of Lacedaemonia | Bishop of Poznań, Poland |
| 58.7 | Appointed | Pedro Urbina Montoya, O.F.M. † | Bishop of Coria, Spain | Archbishop of Sevilla {Seville}, Spain |
| Appointed | Nicolas de Zaldivar y Zapata, O.S.A. † | Bishop of Nueva Caceres, Philippines | Bishop-Elect |
| 3 May | 55.2 | Died | Gregor Kathmann von Maurugk † | Prefect of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany |
| 8 May | | Born | Bernardino della Chiesa, O.F.M. † | Venedig | Bishop of Peking [Beijing], China |
| 12 May | 56.4 | Appointed | Marcos de Torres y Rueda † | Bishop of Yucatán (Mérida), México |
| 14 May | | Born | Marquard Sebastian von Schenk von Stauffenberg † | Eichstätt | Bishop of Bamberg, Germany |
| 15 May | 60.8 | Ordained Bishop | Diego Martínez Zarzosa † | Bishop of Tui, Spain | Bishop of Málaga, Spain |
| 23 May | 64.4 | Appointed | Diego Castejón Fonseca † | Bishop of Tarazona, Spain |
| Appointed | Francesco Fossati, O.S.B. † | Bishop of Tortona, Italy |
| Appointed | Marco Antonio Gussio † | Bishop of Cefalù, Italy | Bishop of Catania, Italy |
| 63.3 | Appointed | Faustus Poli † | Archbishop (Personal Title) of Orvieto, Italy | Cardinal, Bishop |
| Appointed | Enea di Cesare Spennazzi † | Bishop of Ferentino, Italy |
| 77.4 | Died | François van der Burch † | Archbishop of Cambrai, France |
| 27 May | 68.4 | Resigned | Paolo Ciera, O.S.A. † | Bishop of Vieste, Italy | Bishop Emeritus |
| 29 May | | Ordained Bishop | Marco Antonio Gussio † | Bishop of Cefalù, Italy | Bishop of Catania, Italy |
| 30 May | | Born | Carlo Nicola de Massa † | Mortola | Bishop of Venafro, Italy |
| Jun | | Born | Barnaba De Castro, O.S.A. † | Manrique | Archbishop of Brindisi, Italy |
| 13 Jun | 64.6 | Resigned | Federico Baldissera Bartolomeo Cornaro † | Patriarch of Venezia {Venice}, Italy | Cardinal, Cardinal-Bishop of Albano |
| 37.4 | Appointed | Alessandro Crescenzi, C.R.S. † | Bishop of Ortona a Mare e Campli, Italy | Cardinal, Bishop Emeritus of Recanati e Loreto, Italy |
| 62.7 | Installed | Damián Lopez de Haro y Villarda, O.SS.T. † | Bishop of Puerto Rico (Porto Rico) |
| 47.4 | Appointed | Cherubino Manzoni, O.F.M. † | Bishop of Termoli, Italy |
| 36.4 | Appointed | Ferdinand de Neufville de Villeroy † | Titular Bishop of Augustopolis in Phrygia | Bishop of Chartres, France |
| 36.4 | Confirmed | Ferdinand de Neufville de Villeroy † | Coadjutor Bishop of Saint-Malo, France | Bishop of Chartres, France |
| 14 Jun | 70.5 | Died | Paolo Arese, C.R. † | Bishop Emeritus of Tortona, Italy |
| 34.1 | Selected | François-Etienne de Caulet † | Bishop of Pamiers, France |
| 22 Jun | 63.5 | Died | Jerónimo Manrique de Lara y de Herrera, O. de M. † | Bishop of Santiago de Cuba | Bishop of Santiago de Cuba |
| 23 Jun | | Died | Ruggero Tritonio † | Bishop of Poreč (Parenzo), Croatia |
| Died | Francisco Vega Borja, O.S.B. † | Archbishop of La Plata o Charcas, Bolivia |