| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Bonaventura Bellemo, O.F.M. † | Bishop of Andros, Greece |
| Died | Orazio Bellotti, O.F.M. Conv. † | Bishop of Nona (Nin), Croatia |
| Died | Girolamo Bucchia † | Bishop of Kotor (Cattaro), Montenegro |
| Born | Maciej Bystrom (Bystram) † | Celenta | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| Born | Giacinto Cevoli, O.P. † | Roma | Bishop of San Marco (Argentano), Italy |
| Born | Giuseppe Cianti, O.P. † | Roma | Bishop Emeritus of Marsico Nuovo, Italy |
| Born | Giacomo Corradi † | Ferrara | Cardinal, Bishop Emeritus of Jesi, Italy |
| Died | Tiberio Cortesi † | Bishop of Lavello, Italy |
| Ordained Bishop | Martín Ignacio de Loyola † | Bishop of Paraguay |
| Born | Paolo Diano-Parisi † | Rheginen | Bishop of Oppido Mamertina, Italy |
| Born | Giulio Diotallevi † | | Bishop of Strongoli, Italy |
| Died | Bartolomé de la Plaza, O.F.M. † | Bishop of Santiago de Cuba | Bishop of Santiago de Cuba |
| Born | Jan Gembicki † | | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| Born | Bartolomeo Gera (Giera) † | Cadoii | Bishop of Feltre, Italy |
| Born | Francesco Gisulfo e Osorio † | Palermo | Bishop of Agrigento (Girgenti), Italy |
| Born | Francesco Gonzaga, C.R. † | | Bishop of Nola, Italy |
| Resigned | Geronimo de Gouvea, O.F.M. † | Bishop of Ceuta, Spain | Bishop Emeritus |
| Resigned | Geronimo de Gouvea, O.F.M. † | Bishop of Tanger, Morocco | Bishop Emeritus of Ceuta, Spain |
| Died | Claude de Granier † | Bishop of Genève {Geneva}, Switzerland |
| Born | Gabriel Haug † | Sulz | Auxiliary Bishop of Strasbourg, France |
| Died | Paolo Isaresi della Mirandola, O.P. † | Bishop of Squillace, Italy |
| Born | Henri de La Mothe-Houdancourt † | | Archbishop of Auch, France |
| 29.9 | Ordained Priest | Maciej Łubieński † | Priest | Archbishop of Gniezno, Poland |
| Born | Jaume Mas † | Tarraconen | Bishop of Vic, Spain |
| Appointed | Gonçalo de Morais, O.S.B. † | Bishop of Porto, Portugal |
| Died | Tadeo O’Farrell (MacEoga), O.P. † | Bishop Emeritus of Clonfert, Ireland |
| Died | Francisco Ortega, O.S.A. † | Bishop of Nueva Caceres, Philippines |
| Born | Antonio Pavonelli, O.F.M. Conv. † | Civitella del Tronto | Bishop of Venosa, Italy |
| 24.8 | Ordained Priest | Georg Christoph Rösch † | Priest of Augsburg, Germany | Auxiliary Bishop of Eichstätt, Germany |
| Born | Muzio de Rosis † | Villa Nova | Bishop of Teano, Italy |
| Died | Luciano Rosso (de Rubeis) † | Bishop of Mazara del Vallo, Italy |
| Died | Raymundus de Rouchon † | Bishop of Saint-Flour, France |
| Born | Ferdinando Sanchez de Cuellar, O.S.A. † | Medinae | Bishop of Agrigento (Girgenti), Italy |
| Born | Michel Tuboeuf † | | Bishop of Castres, France |
| Died | Antonius Vespoli, C.R. † | Coadjutor Bishop of Potenza, Italy |
| Born | Félix Vialar † | Lutetiae Parisiorum | Bishop of Chalons-sur-Marne, France |
| 14 Jan | 49.0 | Confirmed | Wolfgang von Hausen † | Bishop of Regensburg, Germany |
| Appointed | Federico Mezio † | Bishop of Termoli, Italy |
| 23 Jan | | Appointed | Franciscus Optimates, O.F.M. † | Bishop of Milos (Melos), Greece |
| 27 Jan | | Died | Marco Pedacca, O.S.B. † | Bishop of Lacedonia, Italy |
| Feb | | Died | Corrado Tartarini † | Bishop of Forli, Italy |
| 2 Feb | 72.1 | Died | Cesare Costa, C.O. † | Archbishop of Capua, Italy |
| 10 Feb | 53.1 | Ordained Bishop | François Buisseret † | Bishop of Namur {Namen}, Belgium | Archbishop of Cambrai, France |
| 13 Feb | | Died | Giulio Cesare Riccardi † | Archbishop of Bari (-Canosa), Italy |
| 25 Feb | | Appointed | Jean Bertier † | Coadjutor Bishop of Rieux, France | Bishop |
| Appointed | Jean Bertier † | Titular Bishop of Auzia | Bishop of Rieux, France |
| Mar | | Born | Juan Velez † | | Bishop-Elect of Cebu, Philippines |
| 3 Mar | | Ordained Bishop | Melchior de Marconnay † | Bishop of Saint-Brieuc, France |
| 4 Mar | | Appointed | Pedro de León † | Bishop of Fossano, Italy |
| 9 Mar | | Died | Pedro Rojas Henríques, O.S.A. † | Bishop of Osma, Spain |
| 10 Mar | 54.2 | Ordained Bishop | Johann Nopel (Jr.) † | Titular Bishop of Cyrene | Auxiliary Bishop of Köln {Cologne}, Germany |
| 18 Mar | 59.5 | Appointed | St. Roberto Francesco Romolo Bellarmino, S.J. † | Archbishop of Capua, Italy | Cardinal, Archbishop Emeritus |
| 50.7 | Appointed | Bonviso Bonvisi † | Cardinal, Archbishop of Bari (-Canosa), Italy |
| 24 Mar | | Died | Giannantonio Castruccio † | Bishop of Mondovi, Italy |
| 15 Apr | 37.3 | Appointed | Juan de las Cabezas Altamirano † | Bishop of Santiago de Cuba | Bishop of Arequipa, Peru |
| Appointed | Filippo Gesualdo, O.F.M. Conv. † | Bishop of Cariati e Cerenzia, Italy |
| Appointed | Stefano Spínola, C.R. † | Bishop of Ventimiglia, Italy |
| 16 Apr | 65.2 | Died | Antonmaria Salviati † | Cardinal, Bishop Emeritus of Saint-Papoul, France |
| 20 Apr | 49.3 | Ordained Bishop | Wolfgang von Hausen † | Bishop of Regensburg, Germany |
| 67.7 | Died | Juan de Sanclemente Torquemada † | Archbishop of Santiago de Compostela, Spain |
| 21 Apr | 59.5 | Ordained Bishop | St. Roberto Francesco Romolo Bellarmino, S.J. † | Archbishop of Capua, Italy | Cardinal, Archbishop Emeritus |
| 50.8 | Ordained Bishop | Bonviso Bonvisi † | Cardinal, Archbishop of Bari (-Canosa), Italy |
| 22 Apr | 49.6 | Appointed | Camillo Borghese † | Cardinal-Priest of San Crisogono | Pope (Roma {Rome}, Italy) |
| 42.3 | Appointed | Ottavio Acquaviva d’Aragona (Sr.) † | Cardinal-Priest of Santi Giovanni e Paolo | Cardinal, Archbishop of Napoli {Naples}, Italy |
| Died | Patrizio Lunato Laosio † | Bishop of Nusco, Italy |
| Appointed | Fausto Malari (Molari, Mellari) † | Bishop of Chiusi, Italy |
| Appointed | Alessandro Petrucci † | Bishop of Massa Marittima, Italy | Archbishop of Siena, Italy |
| 60.5 | Appointed | Domenico Pinelli (Sr.) † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Bishop Emeritus of Fermo, Italy |
| 29 Apr | 24.6 | Confirmed | Ferdinand von Bayern † | Coadjutor Bishop of Liège, Belgium | Archbishop-Elect of Köln {Cologne}, Germany |
| 3 May | 74.1 | Died | Pedro Junco Posada † | Bishop of Salamanca, Spain |
| 5 May | | Ordained Bishop | Fausto Malari (Molari, Mellari) † | Bishop of Chiusi, Italy |
| Ordained Bishop | Alessandro Petrucci † | Bishop of Massa Marittima, Italy | Archbishop of Siena, Italy |
| 8 May | | Died | Eugenio Camuzzi † | Bishop of Bobbio, Italy |
| 9 May | 69.9 | Died | Giulio Antonio Santorio † | Archbishop Emeritus of Santa Severina, Italy | Cardinal, Archbishop |
| 12 May | | Died | Juan Castellano Orozco † | Bishop of Siracusa, Italy |
| 1 Jun | 63.4 | Died | Mathias Lambrecht † | Bishop of Brugge {Bruges}, Belgium |
| 6 Jun | | Died | Giovanni Girolamo Pisano † | Bishop of San Marco (Argentano), Italy |
| 17 Jun | 62.5 | Appointed | Girolamo Bernerio, O.P. † | Cardinal-Priest of San Lorenzo in Lucina | Cardinal, Bishop of Ascoli Piceno, Italy |
| 67.0 | Appointed | Alessandro Ottaviano de’ Medici † | Cardinal-Bishop of Palestrina | Pope (Roma {Rome}, Italy) |
| Appointed | François L’Archiver † | Bishop of Rennes, France |
| Appointed | Simone Lunadoro † | Bishop of Nocera de’ Pagani, Italy |
| 68.2 | Appointed | Francesco Mantica † | Cardinal, Cardinal-Priest of Santa Maria del Popolo |
| Appointed | Melchor Soria Vera † | Auxiliary Bishop of Toledo, Spain |
| Appointed | Melchor Soria Vera † | Titular Bishop of Troas | Auxiliary Bishop of Toledo, Spain |
| 52.1 | Appointed | Simeone Tagliavia d’Aragonia † | Cardinal-Bishop of Albano | Cardinal, Cardinal-Bishop of Sabina |
| 76.8 | Appointed | François-Marie Tarugi, C.O. † | Cardinal-Priest of Santa Maria sopra Minerva | Cardinal, Archbishop Emeritus of Siena, Italy |
| 20 Jun | | Died | Gonzalo Gutiérrez Montilla † | Bishop of Oviedo, Spain |
| 26 Jun | | Appointed | Diego della Quadra † | Bishop of Lavello, Italy |
| Appointed | Gómez Suárez Figueroa † | Bishop of Cádiz, Spain |
| Jul | | Died | Jean du Ploich † | Bishop of Arras, France |
| 1 Jul | | Appointed | Aurelio Novarini, O.F.M. Conv. † | Archbishop (Personal Title) of San Marco (Argentano), Italy | Bishop |
| 14 Jul | | Born | Jules Raymond (Giulio Raimondo) Mazarin (Mazzarino) † | Pescina, Italy | Cardinal, Cardinal-Deacon |
| 15 Jul | | Appointed | Nicolaus Braverius † | Bishop of Sarsina, Italy |
| 34.9 | Appointed | St. François de Sales † | Coadjutor Bishop of Genève {Geneva}, Switzerland | Bishop |
| 34.9 | Appointed | St. François de Sales † | Titular Bishop of Nicopolis ad Iaterum | Bishop of Genève {Geneva}, Switzerland |
| 18 Jul | | Born | François Perrochel † | Paris | Bishop Emeritus of Boulogne (-Sur-Mer), France |
| 26 Jul | | Appointed | Biagio Mandevi † | Bishop of Nona (Nin), Croatia |
| 29 Jul | 72.0 | Died | Teotónio de Bragança, S.J. † | Archbishop of Évora, Portugal |
| 30 Jul | | Died | Gian Antonio Grassi † | Bishop of Faenza, Italy |
| 2 Aug | | Died | Giovanni Domenico Marcot (Malcoto detto Foconio), O.P. † | Archbishop of Split (Spalato), Croatia |
| 64.6 | Appointed | Séraphin Olivier-Razali † | Titular Patriarch of Alexandria {Alessandria} | Cardinal, Cardinal-Priest of Sant’Agnese in Agone |
| 7 Aug | | Died | Guitard de Ratte † | Bishop of Montpellier, France |
| 11 Aug | | Ordained Bishop | Simone Lunadoro † | Bishop of Nocera de’ Pagani, Italy |
| 12 Aug | | Appointed | Eustachius Fontana, O.P. † | Bishop of Andros, Greece |
| Appointed | Fabio Tempestivo † | Archbishop of Dubrovnik (Ragusa), Croatia |
| 15 Aug | | Appointed | Simone Rao Grimaldi † | Prelate of Santa Lucia del Mela, Italy |
| 16 Aug | 61.6 | Died | Miguel Rangel, O.F.M. Cap. † | Bishop of Angola e Congo, Angola |
| 18 Aug | | Ordained Bishop | Eustachius Fontana, O.P. † | Bishop of Andros, Greece |
| 25 Aug | | Ordained Bishop | Gonçalo de Morais, O.S.B. † | Bishop of Porto, Portugal |
| Ordained Bishop | Fabio Tempestivo † | Archbishop of Dubrovnik (Ragusa), Croatia |
| 26 Aug | 56.9 | Appointed | Bl. Giovanni Giovenale Ancina, C.O. † | Bishop of Saluzzo, Italy |
| Appointed | Camillo Olario (Aulari) † | Bishop of Bobbio, Italy |
| Appointed | Juan Portocarrero, O.F.M. † | Bishop of Almería, Spain |
| 31 Aug | | Succeeded | Jean Bertier † | Bishop of Rieux, France |
| Died | Jean-Baptiste du Bourg † | Bishop of Rieux, France |
| Sep | 26.7 | Ordained Priest | Pierre Antoine Triest † | Priest | Bishop of Gent {Ghent, Gand}, Belgium |
| 1 Sep | 56.9 | Ordained Bishop | Bl. Giovanni Giovenale Ancina, C.O. † | Bishop of Saluzzo, Italy |
| 8 Sep | | Ordained Bishop | Camillo Olario (Aulari) † | Bishop of Bobbio, Italy |
| 9 Sep | | Appointed | Sasbout Vosmeer † | Titular Bishop of Philippi |
| 15 Sep | 64.7 | Ordained Bishop | Séraphin Olivier-Razali † | Titular Patriarch of Alexandria {Alessandria} | Cardinal, Cardinal-Priest of Sant’Agnese in Agone |
| 17 Sep | 35.1 | Succeeded | St. François de Sales † | Bishop of Genève {Geneva}, Switzerland |
| 19 Sep | | Died | Ludovico Bentivoglio † | Bishop of Città di Castello, Italy |
| 22 Sep | | Ordained Bishop | Sasbout Vosmeer † | Titular Bishop of Philippi |
| 23 Sep | 52.7 | Appointed | Constantino Barradas † | Bishop of São Salvador da Bahia, Brazil | Bishop Emeritus |
| Oct | | Born | Francesco de Andreis (Andronico) † | Tragurien | Bishop of Nona (Nin), Croatia |
| 7 Oct | | Appointed | Miguel de Benavides, O.P. † | Archbishop of Manila, Philippines |
| Appointed | Andrés Fernández de Córdoba y Carvajal † | Bishop of Badajoz, Spain |
| 11 Oct | | Died | Giacomo Masini † | Bishop of Segni, Italy |
| 20 Oct | | Ordained Bishop | Andrés Fernández de Córdoba y Carvajal † | Bishop of Badajoz, Spain |
| 27 Oct | | Died | Alfonso Gregorio † | Archbishop of Zaragoza, Spain |
| 15 Nov | | Appointed | Marc’Antonio de Dominis † | Archbishop of Split (Spalato), Croatia | Archbishop Emeritus |
| Appointed | Enrique Enríquez, O.S.A. † | Bishop of Osma, Spain | Bishop of Plasencia, Spain |
| Appointed | Juan Guzmán † | Patriarch of West Indies, Spain |
| Appointed | Valeriano Muti † | Bishop of Città di Castello, Italy |
| Appointed | Diego Soria, O.P. † | Bishop of Nueva Segovia, Philippines |
| 17 Nov | | Died | Juan de Izquierdo, O.F.M. † | Bishop of Yucatán (Mérida), México |
| 19 Nov | | Died | Alonso Ramírez Vergara, O.S. † | Bishop of La Plata o Charcas, Bolivia |
| 20 Nov | | Appointed | Cesare Bartorelli † | Bishop of Forli, Italy |
| 47.8 | Appointed | Luis Fernández de Córdoba † | Bishop of Salamanca, Spain | Archbishop of Sevilla {Seville}, Spain |
| 59.9 | Appointed | Lazaro Pellizzari, O.P. † | Bishop of Nusco, Italy | Bishop of Modena, Italy |
| 27 Nov | 32.2 | Appointed | Alexandre de Bragança † | Archbishop of Évora, Portugal |
| Appointed | Gian Paolo Palenteri, O.F.M. Conv. † | Bishop of Lacedonia, Italy |
| Appointed | Louis de Salignac de La Mothe-Fénelon † | Bishop of Sarlat, France |
| Dec | 67.9 | Installed | Reginaldo de Lizárraga, O.P. † | Bishop of Concepción, Chile | Bishop of Paraguay |
| 8 Dec | 35.3 | Ordained Bishop | St. François de Sales † | Bishop of Genève {Geneva}, Switzerland |
| 11 Dec | | Appointed | Jean Garnier, O.S.B. † | Bishop of Montpellier, France |
| 20 Dec | | Died | Alfonso Herrera, O.S.A. † | Bishop of Ariano, Italy |
| Succeeded | Vittorino Mansi, O.S.B. † | Bishop of Ariano, Italy |
| Died | Juan Zúñiga † | Bishop of Cartagena (en España) |
| 25 Dec | | Died | Francisco de Villanova, O.F.M. † | Bishop of São Tomé e Príncipe |