| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Bonifacio Agliardi (Alliardi), C.R. † | | Bishop of Adria, Italy |
| Born | Alfonso Aguayo (Aguado), O.S.B. † | | Auxiliary Bishop of Ávila, Spain |
| Born | Giovanni Carlo Antonelli † | | Bishop of Ferentino, Italy |
| Born | Andrés Aznar y Naves, O.S.A. † | | Bishop of Teruel, Spain |
| Born | Lodovico Betti † | | Bishop of Osimo, Italy |
| Born | Antonio de Benavides y Bazán † | | Patriarch of West Indies, Spain |
| Born | Carlo Bonelli † | | Cardinal, Cardinal-Priest of Sant’Anastasia |
| 10.1 | Appointed | Gaston Henri de Bourbon † | Bishop of Metz, France | Former Bishop-Elect |
| 43.0 | Ordained Priest | Eusebius Caimus † | Priest | Bishop of Novigrad (Cittanova), Croatia |
| Born | Juan de la Calle y Heredia, O. de M. † | | Bishop of Arequipa, Peru |
| 40.0 | Resigned | Giovanni Canauli (Cannuli) † | Bishop of Fossombrone, Italy | Bishop Emeritus |
| Born | Vincenzo Costaguti † | | Cardinal, Cardinal-Priest of San Callisto |
| Died | Gaspar de Andrada (Anorada), O.F.M. Obs. † | Bishop of Comayagua, Honduras |
| Born | Diego de Guevara y Estrada † | | Archbishop of Santo Domingo, Dominican Republic |
| Born | Giovanni de la Cruz, O.F.M. † | | Bishop-Elect of Trivento, Italy |
| Born | Antonio de Morales, O.P. † | | Bishop of Concepción, Chile |
| Born | Gregório dos Anjos, C. S. J. † | | Bishop of Săo Luís do Maranhăo, Brazil |
| 59.0 | Resigned | Agostino Galamini, O.P. † | Master General of Order of Friars Preachers | Cardinal, Bishop of Osimo, Italy |
| 56.0 | Died | Maffeo Gambara † | Bishop of Tortona, Italy |
| Born | Giovanni Paolo Garzoni † | | Bishop of Trogir (Traů), Croatia |
| Died | Bartolomeo Giorgi, O.F.M. † | Bishop of Pesaro, Italy |
| 36.9 | Appointed | Louis III de Guise de Lorraine † | Abbot of Cluny, France | Cardinal, Archbishop-Elect of Reims, France |
| Born | Maciej Marian Kurski, O.F.M. † | | Auxiliary Bishop of Poznań, Poland |
| 63.0 | Appointed | Johann Lohel, O. Praem. † | Grand Master of Knights of the Cross with the Red Star | Archbishop of Praha {Prague}, Czechia |
| Born | Arnauld-François de Maytie † | | Bishop of Oloron (Oloron-Sainte-Marie), France |
| Born | Arsenius a Mediolano (Milano), O.F.M. † | | Titular Bishop of Paphus |
| Died | Federico Mezio † | Bishop of Termoli, Italy |
| 42.0 | Died | Giovanni Francesco Murta (de Mirto), C.R. † | Bishop of Aleria, France |
| Born | Camillo Piazza † | | Titular Bishop of Dragobitia (Drago) |
| Born | Gabriel Ramírez de Arellano, O.P. † | | Bishop of Mondońedo, Spain |
| Died | Salvador Ribera Avalos, O.P. † | Bishop of Quito, Ecuador |
| Born | Andreas Ridolfi, O.F.M. Conv. † | | Auxiliary Bishop of Constantinople |
| Died | Jacques Rusconi † | Bishop of Nebbio, France |
| 31.0 | Ordained Priest | Abraham Jan Jacek Śladkowski, O.P. † | Priest of Order of Friars Preachers | Auxiliary Bishop of Chełm, Poland |
| Born | Antonio Sotomayor, O.S.B. † | | Auxiliary Bishop of Praha {Prague}, Czechia |
| Died | Gómez Suárez Figueroa † | Bishop of Cádiz, Spain |
| Born | Luis Tello de Olivares † | | Bishop of Mondońedo, Spain |
| Died | Usimbardo Usimbardi † | Bishop of Colle di Val d’Elsa, Italy |
| Born | Ferdinandus de Valcácer † | | Bishop-Elect of Paraguay (o Ssma Assunzione) |
| 51.0 | Ordained Bishop | Lope Velasco Valdivieso † | Bishop of Islas Canarias {Canary Islands}, Spain |
| Jan | 31.0 | Ordained Priest | Malatesta Baglioni † | Priest | Bishop of Assisi, Italy |
| 5 Jan | | Died | Jean Martin † | Bishop of Périgueux (Vesuna), France |
| 8 Jan | 37.0 | Ordained Bishop | Antonio de Gouvea, O.E.S.A. † | Titular Bishop of Cyrene |
| 37.0 | Ordained Bishop | Roberto Roberti (-Vittori), O.P. † | Bishop of Tricarico, Italy |
| 9 Jan | 36.8 | Appointed | Giovanni Tommaso Eustachio, C.O. † | Bishop of Larino, Italy | Bishop Emeritus |
| 59.1 | Appointed | Jacques Suarez de Sainte-Marie, O.F.M. † | Bishop of Sées {Séez}, France |
| 10 Jan | | Born | Philipp Valentin Albrecht Voit von Rieneck † | | Bishop of Bamberg, Germany |
| 15 Jan | 36.8 | Ordained Bishop | Giovanni Tommaso Eustachio, C.O. † | Bishop of Larino, Italy | Bishop Emeritus |
| 38.0 | Ordained Bishop | Tiberio Muti † | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 16 Jan | 23.7 | Ordained Priest | Joseph de Bergaigne, O.F.M. Obs. † | Priest of Order of Observant Friars Minor | Archbishop of Cambrai, France |
| 65.0 | Appointed | Cristóbal Rodríguez Juárez (Suárez), O.P. † | Archbishop (Personal Title) of Arequipa, Peru | Bishop |
| 19 Jan | | Died | Francesco Simonetta † | Bishop of Foligno, Italy |
| 24 Jan | 57.8 | Died | Honoré du Laurens † | Archbishop of Embrun, France |
| 28 Jan | 25.0 | Died | Silvestro Aldobrandini, O.S.Io.Hieros. † | Cardinal, Cardinal-Deacon of San Cesareo in Palatio |
| 30 Jan | 39.0 | Appointed | Drause Hennequin † | Coadjutor Bishop of Soissons, France | Coadjutor Bishop Emeritus |
| 39.0 | Appointed | Drause Hennequin † | Titular Bishop of Claudiopolis in Isauria | Coadjutor Bishop Emeritus of Soissons, France |
| 1 Feb | 79.0 | Died | Bl. Conor O’Devany, O.F.M. † | Bishop of Down and Connor, Ireland |
| 5 Feb | | Died | Juan Tomás de Blanes, O.P. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 10 Feb | 34.3 | Selected | Ferdinand von Bayern † | Coadjutor Bishop of Paderborn, Germany | Archbishop-Elect of Köln {Cologne}, Germany |
| Born | Johann von Goës (Goess) † | | Cardinal, Bishop of Gurk, Austria |
| 17 Feb | 34.3 | Succeeded | Ferdinand von Bayern † | Archbishop of Köln {Cologne}, Germany | Archbishop-Elect |
| 34.3 | Succeeded | Ferdinand von Bayern † | Bishop of Ličge, Belgium | Archbishop-Elect of Köln {Cologne}, Germany |
| 34.3 | Succeeded | Ferdinand von Bayern † | Bishop of Hildesheim, Germany | Archbishop-Elect of Köln {Cologne}, Germany |
| 57.1 | Died | Ernst von Bayern † | Archbishop-Elect of Köln {Cologne}, Germany |
| 18 Feb | 34.3 | Confirmed | Ferdinand von Bayern † | Bishop of Münster, Germany | Archbishop-Elect of Köln {Cologne}, Germany |
| 21 Feb | | Born | Lorenzo Imperiali † | | Cardinal, Cardinal-Priest of San Crisogono |
| 22 Feb | 52.1 | Died | Francisco García Guerra, O.P. † | Archbishop of México, Federal District |
| 27 Feb | 65.1 | Appointed | Cosimo Dossena, B. † | Bishop of Tortona, Italy |
| 32.1 | Appointed | Decius Giustiniani, O.P. † | Bishop of Aleria, France |
| 61.1 | Appointed | Prudencio Sandoval, O.S.B. † | Bishop of Pamplona, Spain |
| 4 Mar | 65.1 | Ordained Bishop | Cosimo Dossena, B. † | Bishop of Tortona, Italy |
| 59.3 | Ordained Bishop | Jacques Suarez de Sainte-Marie, O.F.M. † | Bishop of Sées {Séez}, France |
| 82.1 | Died | Juan Vich Manrique de Lara † | Archbishop of Tarragona, Spain |
| 6 Mar | | Born | José Bergés † | | Bishop of Orihuela, Spain |
| 7 Mar | 52.9 | Resigned | Wolf Dietrich von Raitenau † | Archbishop of Salzburg, Austria | Archbishop Emeritus |
| 12 Mar | 66.5 | Died | Lorenzo Bianchetti † | Cardinal, Cardinal-Priest of San Lorenzo in Panisperna |
| 17 Mar | 34.9 | Ordained Priest | Gaspard Dubois (Van Den Bosch, Nemius) † | Priest of ’s-Hertogenbosch (Bois-le-Duc), Netherlands | Archbishop of Cambrai, France |
| 18 Mar | 32.2 | Ordained Bishop | Decius Giustiniani, O.P. † | Bishop of Aleria, France |
| 37.7 | Selected | Markus Sittikus von Hohenems † | Archbishop of Salzburg, Austria |
| 19 Mar | 34.5 | Appointed | Henri Louis Chasteigner de La Rocheposay † | Bishop of Poitiers, France |
| 54.2 | Appointed | Antonio Gallart Traginer † | Bishop of Vic, Spain |
| 53.1 | Appointed | Alexeu de Jesu de Meneses, O.S.A. † | Archbishop of Braga, Portugal |
| 21 Mar | 52.8 | Appointed | Ludovico de Taragni, O.S.B. † | Auxiliary Bishop of Toul, France |
| 52.8 | Appointed | Ludovico de Taragni, O.S.B. † | Titular Bishop of Christopolis | Auxiliary Bishop of Toul, France |
| 22 Mar | 79.2 | Died | Girolamo Provenzale † | Archbishop of Sorrento, Italy |
| 24 Mar | | Born | Carlo Bonafaccia † | | Bishop of Terni, Italy |
| 26 Mar | 46.9 | Appointed | Isidoro Aliaga, O.P. † | Archbishop of Valencia, Spain |
| 50.2 | Appointed | Gavino Manca de Cedrelles † | Bishop of Alghero, Italy | Archbishop of Sassari, Italy |
| 28 Mar | 76.2 | Died | Geoffroy de Billy † | Bishop of Laon, France |
| 26.5 | Succeeded | Benjamin de Brichanteau, C.R.S.A. † | Bishop of Laon, France |
| 1 Apr | 70.2 | Died | Celso Mancino, C.R.L. † | Bishop of Alessano, Italy |
| 2 Apr | 36.2 | Resigned | Scipione Caffarelli-Borghese † | Archbishop of Bologna, Italy | Cardinal, Cardinal-Bishop of Sabina |
| 58.2 | Appointed | Porfirio Feliciani † | Bishop of Foligno, Italy |
| 58.2 | Appointed | Alessandro Ludovisi † | Archbishop of Bologna, Italy | Pope (Roma {Rome}, Italy) |
| 10 Apr | | Born | Lorenzo Brancati di Lauria, O.F.M. Conv. † | | Cardinal, Cardinal-Priest of Santi XII Apostoli |
| 12 Apr | | Died | Ascanio Giacobazio (Giacovazzi) † | Bishop Emeritus of Anglona-Tursi, Italy |
| 14 Apr | | Born | Mathieu Thoreau † | | Bishop of Dol, France |
| 19 Apr | 66.0 | Died | Anne d’Escars de Givry (de Pérusse), O.S.B. † | Cardinal, Bishop of Metz, France |
| 26 Apr | 36.3 | Died | Claude de Belličvre † | Archbishop of Lyon, France |
| 30 Apr | 63.3 | Appointed | Johann Lohel, O. Praem. † | Coadjutor Archbishop of Praha {Prague}, Czechia | Archbishop |
| 1 May | 58.3 | Ordained Bishop | Porfirio Feliciani † | Bishop of Foligno, Italy |
| 58.3 | Ordained Bishop | Alessandro Ludovisi † | Archbishop of Bologna, Italy | Pope (Roma {Rome}, Italy) |
| 7 May | 56.3 | Installed | Decio Carafa † | Cardinal-Priest of San Lorenzo in Panisperna | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 53.6 | Appointed | Agustín de Carvajal, O.S.A. † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| Selected | Stephan von Seiboldsdorf † | Bishop of Freising, Germany |
| 11 May | | Died | Clément Isnard † | Bishop Emeritus of Glandčves, France |
| 13 May | 34.6 | Ordained Bishop | Henri Louis Chasteigner de La Rocheposay † | Bishop of Poitiers, France |
| Born | Giulio Spinola † | | Cardinal, Bishop Emeritus of Lucca, Italy |
| 14 May | 70.3 | Appointed | Juan Alvarez de Caldas † | Bishop of Ávila, Spain |
| 55.3 | Appointed | Alfonso Márquez de Prado † | Bishop of Tortosa, Spain | Bishop of Segovia, Spain |
| Appointed | Jerónimo Teixeira Cabral † | Bishop of Miranda (do Douro), Portugal |
| 19 May | 76.2 | Died | Gregorio Petrocchini, O.S.A. † | Cardinal, Cardinal-Bishop of Palestrina |
| 21 May | 53.3 | Died | Karel Maes † | Bishop of Gent {Ghent, Gand}, Belgium |
| 25 May | | Born | Jan Olbracht Waza (Wazy), S.J. † | | Cardinal, Bishop of Kraków, Poland |
| 30 May | 47.1 | Installed | Isidoro Aliaga, O.P. † | Archbishop of Valencia, Spain |
| 4 Jun | 41.1 | Appointed | Pietro Aldobrandini † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Archbishop of Ravenna, Italy |
| 52.4 | Appointed | Giovanni Antonio Angrisani, C.R. † | Archbishop of Sorrento, Italy |
| 62.9 | Appointed | Francesco Maria Bourbon Del Monte Santa Maria † | Cardinal-Priest of San Lorenzo in Lucina | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 57.9 | Appointed | Benedetto Giustiniani † | Cardinal-Bishop of Palestrina | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 7 Jun | | Born | Giovanni Battista Falvo † | | Bishop Emeritus of Marsico Nuovo, Italy |
| 8 Jun | 17.4 | Professed | Timoteo Pérez Vargas, O.C.D. † | Member of Order of Discalced Carmelites | Bishop Emeritus of Ispahan, Iran |
| 11 Jun | 52.4 | Ordained Bishop | Giovanni Antonio Angrisani, C.R. † | Archbishop of Sorrento, Italy |
| 13 Jun | | Died | Gaspare Pasquali, O.F.M. Conv. † | Bishop of Rieti, Italy |
| 15 Jun | 44.8 | Selected | Henri-François van der Burch † | Bishop of Gent {Ghent, Gand}, Belgium | Archbishop of Cambrai, France |
| 16 Jun | 22.2 | Ordained Priest | Henri Sylvius, O.S.C. † | Priest of Canons Regular of the Order of the Holy Cross | Auxiliary Bishop of Ličge, Belgium |
| 18 Jun | 50.4 | Appointed | Juan Alvarez Zapata, O. Cist. † | Bishop of Bosa, Italy | Bishop of Solsona, Spain |
| 56.4 | Appointed | Decio Carafa † | Cardinal-Priest of Santi Giovanni e Paolo | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 50.4 | Appointed | Diego de Contreras, O.S.A. † | Archbishop of Santo Domingo, Dominican Republic |
| Appointed | Arcangelo Gualtieri, O.F.M. † | Archbishop of Monreale, Italy |
| 37.9 | Confirmed | Markus Sittikus von Hohenems † | Archbishop of Salzburg, Austria |
| 46.4 | Appointed | Alfonso Mesía de Tovar † | Bishop of Mondońedo, Spain | Bishop of Astorga, Spain |
| 24 Jun | | Ordained Bishop | Arcangelo Gualtieri, O.F.M. † | Archbishop of Monreale, Italy |