| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Alfonso Alvarez Guerrero † | Bishop of Monopoli, Italy |
| Born | Paolo Arese, C.R. † | | Bishop Emeritus of Tortona, Italy |
| Born | Fulcran de Barrès † | Pouzolles | Bishop of Agde, France |
| 23.0 | Ordained Priest | Zbynék Berka z Dubé a Liepé † | Priest | Archbishop of Praha {Prague}, Czech Republic |
| Resigned | Juan Antolínez Brecianos de la Rivera † | Bishop of Giovinazzo, Italy | Bishop Emeritus |
| Died | Pedro Buerba, O.S.A. † | Archbishop of Oristano, Italy |
| Born | Bernardino Buratti † | | Bishop of Vulturara e Montecorvino, Italy |
| Born | Giovanni Canauli (Cannuli) † | Città di Castello | Bishop of Fossombrone, Italy |
| Died | Valerio Cancellieri † | Bishop of Sant’Angelo dei Lombardi-Bisaccia, Italy |
| Resigned | Bernardino de Cupis † | Bishop of Osimo, Italy | Bishop Emeritus |
| 33.6 | Ordained Bishop | Pierre d’Espinac † | Archbishop of Lyon, France |
| Died | Giovanni Pietro Dolfin † | Bishop of Cefalonia e Zante, Greece |
| Born | Nicolaus de Georgiis (Zorzi) † | Faro | Bishop of Hvar (Lesina), Croatia |
| Born | Bernardo Giustiniano † | Messanae | Bishop of Anglona-Tursi, Italy |
| Born | Marco Antonio Gozzadini † | Bologna | Cardinal, Bishop of Faenza, Italy |
| Appointed | Gilberto Isfar y Corillas † | Bishop of Siracusa, Italy | Bishop of Patti, Italy |
| Appointed | Gaspar de Leão Pereira † | Archbishop of Goa, India |
| Born | Stanisław Łubieński † | Łubnej | Bishop of Płock, Poland |
| Died | Girolamo Maccabei † | Bishop Emeritus of Castro [del Lazio], Italy |
| Died | Pedro Martínez de Luna † | Bishop of Tarazona, Spain |
| Born | Pietro Paolo Miloto † | | Bishop of Chioggia, Italy |
| Died | Sebastiano Antonio Minturno † | Bishop of Crotone (Cotrone), Italy |
| Born | Tiberio Muti † | Rome | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| Died | Juan Battista (Giovanni Battista) de Ojeda (Hogeda, Oxeda) † | Bishop of Agrigento (Girgenti), Italy |
| Appointed | Gastone Ettore Paganelli † | Bishop of Gravina (di Puglia), Italy |
| Died | Giulio Parisani † | Bishop of Rimini, Italy |
| Died | Georgius Pietkiwicz † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| Born | António da Ressurreição, O.P. † | Lisboa | Bishop of Angra, Portugal |
| 23.1 | Appointed | Heinrich von Sachsen-Lauenburg † | Bishop of Osnabrück, Germany | Archbishop-Elect of Bremen (and Hamberg), Germany |
| Born | Giulio Savelli † | Rome | Cardinal, Cardinal-Bishop of Frascati |
| Died | Prosper de Sainte-Croix † | Archbishop of Arles, France |
| Appointed | Silvio de Sainte-Croix † | Archbishop of Arles, France | Archbishop Emeritus |
| 55.0 | Resigned | Giovanni Antonio Serbelloni † | Bishop of Novara, Italy | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| Born | Pietro Valier † | Venice | Cardinal, Bishop of Padova {Padua}, Italy |
| Born | Giovanni Michele de Varolis, O.F.M. Conv. † | Brixien | Bishop Emeritus of Cefalonia e Zante, Greece |
| Born | Jean de Watteville, O. Cist. † | Bourg-de-Sirod | Bishop of Lausanne, Switzerland |
| 1 Jan | | Died | Johann Grodecký † | Bishop of Olomouc (Olmütz), Czech Republic |
| 8 Jan | | Appointed | Tomás de Cárdenas, O.P. † | Bishop of Verapaz, Guatemala |
| Appointed | Gaspare Cenci † | Bishop of Melfi e Rapolla, Italy | Bishop Emeritus |
| 50.0 | Ordained Bishop | Pedro de Feria (Martín Fernández), O.P. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 9 Jan | | Appointed | Cornelio Firmano † | Bishop of Osimo, Italy |
| 13 Jan | | Died | Cornelio Musso, O.F.M. Conv. † | Bishop of Bitonto, Italy |
| 15 Jan | | Appointed | Ludovico Antinori † | Bishop of Pistoia, Italy | Bishop of Pisa, Italy |
| 38.6 | Appointed | Alessandro Ottaviano de’ Medici † | Archbishop of Firenze {Florence}, Italy | Pope (Roma {Rome}, Italy) |
| Appointed | Marco Saracini † | Bishop of Volterra, Italy |
| Feb | | Born | Henryk Firlej † | Balice | Archbishop of Gniezno, Poland |
| 12 Feb | | Appointed | Dermot O’Cleary, O.F.M. † | Bishop of Mayo, Ireland |
| 21 Feb | | Ordained Bishop | Cornelio Firmano † | Bishop of Osimo, Italy |
| 28 Feb | | Ordained Bishop | François Thomé † | Bishop of Saint-Malo, France | Bishop Emeritus |
| 6 Mar | 35.2 | Ordained Priest | Bartolomeo Ferrero † | Priest | Bishop of Aosta, Italy |
| 8 Mar | | Died | Antonio Ganguzia † | Bishop of Vieste, Italy |
| 10 Mar | | Appointed | Antonio Guidi † | Bishop of Trogir (Traù), Croatia |
| Resigned | Tommaso Sperandio Corbelli † | Bishop of Trogir (Traù), Croatia | Bishop of Bagnoregio (Bagnorea), Italy |
| 12 Mar | | Ordained Bishop | Gaspare Cenci † | Bishop of Melfi e Rapolla, Italy | Bishop Emeritus |
| Ordained Bishop | Dermot O’Cleary, O.F.M. † | Bishop of Mayo, Ireland |
| 15 Mar | | Appointed | Marcantonio Pescara † | Archbishop of Conza, Italy |
| Installed | François Thomé † | Bishop of Saint-Malo, France | Bishop Emeritus |
| 19 Mar | | Died | Francisco de la Cruz, O.S.A. † | Bishop of Santiago de Cabo Verde |
| 22 Mar | 47.0 | Resigned | Zaccaria Delfino † | Bishop of Hvar (Lesina), Croatia | Cardinal, Bishop Emeritus |
| Appointed | Martino de Martinis, S.J. † | Bishop of Hvar (Lesina), Croatia | Bishop of San Severo, Italy |
| 29 Mar | | Appointed | Giovanni Battista Castelli † | Bishop of Rimini, Italy |
| Appointed | Anselmo Olivieri, O.F.M. † | Bishop of Vieste, Italy |
| 5 Apr | 45.0 | Died | Johann von Hoya zu Stolzenau † | Bishop of Münster, Germany |
| 11 Apr | 17.9 | Converted | Jerzy Radziwiłł † | Cardinal, Bishop of Vilnius, Lithuania |
| 14 Apr | 57.3 | Died | Jakob Eliner † | Auxiliary Bishop of Konstanz {Constance}, Germany |
| 18 Apr | 65.4 | Died | Bernhard von Raesfeld † | Former Bishop-Elect of Münster, Germany |
| 19 Apr | 55.3 | Appointed | Francisco Gómez de Mendiola y Solórzano † | Bishop of Guadalajara, Jalisco, México |
| 21 Apr | 42.3 | Selected | Salentin von Isenburg † | Bishop of Paderborn, Germany | Former Archbishop-Elect of Köln {Cologne}, Germany |
| 26 Apr | | Appointed | Romolo Archinto † | Bishop of Novara, Italy |
| Appointed | Giovanni Pietro Fortiguerra † | Bishop of Bitonto, Italy |
| 28 Apr | 11.9 | Selected | Johann Wilhelm von Jülich-Kleve-Berg † | Bishop of Münster, Germany | Former Bishop-Elect |
| 3 May | 75.5 | Died | Giovanni Ricci † | Cardinal, Archbishop of Pisa, Italy |
| 5 May | 49.3 | Appointed | Francesco Bossi † | Bishop of Perugia, Italy | Bishop of Novara, Italy |
| 63.3 | Appointed | Theobald Craschel † | Auxiliary Bishop of Köln {Cologne}, Germany |
| 63.3 | Appointed | Theobald Craschel † | Titular Bishop of Cyrene | Auxiliary Bishop of Köln {Cologne}, Germany |
| 56.5 | Appointed | Fulvio Giulio della Corgna, O.S.Io.Hieros. † | Cardinal-Bishop of Albano | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 56.5 | Resigned | Fulvio Giulio della Corgna, O.S.Io.Hieros. † | Bishop of Perugia, Italy | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 59.6 | Appointed | Prospero Publicola Santacroce † | Cardinal-Priest of Sant’Adriano al Foro | Cardinal, Bishop of Albano, Italy |
| 70.3 | Appointed | Scipione Rebiba † | Cardinal, Cardinal-Bishop of Sabina |
| 6 May | | Born | Giovanni Battista Pamphilj † | Rome | Pope (Roma {Rome}, Italy) |
| 7 May | | Died | Juan de Arzolaras (Alzóloras), O.S.H. † | Bishop of Islas Canarias {Canary Islands}, Spain |
| 17 May | | Appointed | Massimiliano Palumbara (Palombella) † | Archbishop of Benevento, Italy |
| 51.4 | Resigned | Giacomo Savelli † | Administrator of Benevento, Italy | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 29 May | | Appointed | Giuliano de’ Medici † | Archbishop of Aix, France | Archbishop Emeritus |
| Appointed | Francisco Pérez † | Archbishop of Cagliari, Italy |
| 4 Jun | 62.4 | Appointed | Francisco Blanco Salcedo † | Archbishop of Santiago de Compostela, Spain |
| 61.6 | Appointed | Martín de Córdoba Mendoza, O.P. † | Bishop of Plasencia, Spain | Bishop of Córdoba, Spain |
| 42.4 | Appointed | Juan Manuel de la Cerda † | Bishop of Sigüenza, Spain | Bishop Emeritus |
| Appointed | Piotr Kostka † | Bishop of Chelmno (Culma, Kulm), Poland |
| 52.4 | Appointed | Juan de Liermo Hermosa † | Bishop of Mondoñedo, Spain | Archbishop of Santiago de Compostela, Spain |
| Died | Kaspar von Logau † | Bishop of Wrocław (Breslau), Poland |
| 49.0 | Appointed | Francisco Sarmiento Mendoza † | Bishop of Astorga, Spain | Bishop of Jaén, Spain |
| 7 Jun | | Appointed | Juan Izquierdo, O.P. † | Bishop of Tortosa, Spain |
| 13 Jun | | Born | Juan Alonso de Solis y Mendoza, O. Carm. † | Salamanca, Spain | Bishop of Puerto Rico (Porto Rico) |
| 18 Jun | 44.5 | Appointed | Juan de Medina Rincón y de la Vega, O.S.A. † | Bishop of Michoacán, México |
| Appointed | Pedro Gómez (Fernández) de Córdoba, O.S.H. † | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| 78.5 | Appointed | Diego de Medellín, O.F.M. † | Bishop of Santiago de Chile |
| 20 Jun | 42.9 | Died | Antoine de Créqui Canaples † | Cardinal, Bishop of Amiens, France |
| 24 Jun | | Born | Markus Sittikus von Hohenems † | Hohenems | Archbishop of Salzburg, Austria |
| Born | Juan Valenzuela Velázquez † | Cuenca | Bishop of Salamanca, Spain |
| 25 Jun | | Appointed | Sebastiano Barnaba † | Bishop of Giovinazzo, Italy | Bishop of Potenza, Italy |
| 51.5 | Resigned | Marcantonio Colonna (Sr.) † | Archbishop of Salerno, Italy | Cardinal, Cardinal-Bishop of Palestrina |
| Appointed | Marco Antonio Marsilio † | Archbishop of Salerno, Italy |
| Appointed | Dionisio de Santos, O.P. † | Bishop of Cartagena, Colombia |