| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Antonio de Aragón-Córdoba-Cardona y Fernández de Córdoba † | Lucena, Italy | Cardinal, Cardinal-Deacon |
| Born | Jacques Adhémar de Monteil de Grignan † | Grignan | Bishop of Uzés, France |
| 51.0 | Appointed | Martin Alphonso Mexia de Tovar † | Bishop of Lamego, Portugal | Bishop of Coimbra, Portugal |
| Born | Franciscus Aguado † | Legionen | Bishop of Astorga, Spain |
| Born | Clemente Alvarez, O.P. † | Nava del Rey | Bishop of Guadix, Spain |
| Born | Francesco Angelucci † | Castello del Poggio della Croce | Bishop of Veroli, Italy |
| Born | Agustín Antolínez, O.S.A. † | Valladolid | Bishop of Badajoz, Spain |
| 39.0 | Died | Giovanni Battista de Aquena † | Bishop of Bosa, Italy |
| Born | Francesco Arrigua, O.M. † | Monforte | Bishop of Nicotera, Italy |
| Born | Jean-Albert Belin, O.S.B. † | Bisuntin | Bishop of Belley, France |
| Born | Cesare Biandrà (Biandrati) † | Asten | Bishop of Alba (Pompea), Italy |
| Died | Martin Brenner † | Bishop of Seckau, Austria |
| 93.0 | Died | Afonso de Castelo-Branco † | Bishop of Coimbra, Portugal |
| Resigned | Horace Capponi † | Bishop of Carpentras, France |
| Born | Placido Carafa, C.R. † | Napoli | Bishop of Acerra, Italy |
| Died | Gaspare Cardoso, O.S.B. † | Bishop of Potenza, Italy |
| Born | Domenico Cito, O.P. † | Licien | Bishop of Telese o Cerreto Sannita, Italy |
| 47.0 | Ordained Bishop | Gonçalvo (Gonzalo) da Silva † | Bishop of Malacca, Singapore | Bishop of Ceuta, Spain |
| Born | Joseph de Montpezat de Carbon † | Saint-Martory | Archbishop of Toulouse, France |
| Born | Ottaviano della Rovere, B. † | Asten | Bishop of Fossano, Italy |
| Resigned | Andrés de Santa Maria, O.F.M. † | Bishop of Cochin, India | Bishop Emeritus |
| Appointed | Jakob Eberlein † | Bishop of Seckau, Austria |
| Died | Henri d’Escoubleau de Sourdis † | Bishop of Maillezais, France |
| Born | Josephus Eusanio, O.S.A. † | | Titular Bishop of Porphyreon |
| Appointed | Pedro Fernández Zorrilla † | Bishop of Jaca, Spain | Bishop of Pamplona, Spain |
| Born | Gabriel-Philippe de Froullay de Tessé † | Cenomanen | Bishop of Avranches, France |
| Born | Ildephonsus García de Losada, O.S.B. † | | Auxiliary Bishop of Piacenza, Italy |
| Born | Gaetano Garimberti, C.R. † | Parma | Bishop of Borgo San Donnino, Italy |
| 27.7 | Resigned | Ferdinando Gonzaga † | Cardinal-Deacon of Santa Maria in Portico (Octaviae) | |
| Born | Antoine-Pierre de Grammont, O.S.B. † | | Archbishop of Besançon, France |
| Died | Girolamo Incontri † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| Appointed | Octave Isnard † | Bishop of Glandèves, France |
| Born | Wespazjan Lanckoroński † | Krakow | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine |
| 51.0 | Died | Giorgio Lazzari, O.P. † | Bishop of Minori, Italy |
| Born | John Leyburn † | | Vicar Apostolic of England, Great Britain |
| Born | Franciscus Liberati † | | Titular Archbishop of Ephesus |
| Born | Carlo Molza, O.S.B. † | Modena | Bishop of Modena, Italy |
| Born | Carolus Montecatini † | Ferrarien | Titular Archbishop of Chalcedon |
| Born | Giovanni Battista Paggi, B. † | Jannae | Bishop of Brugnato, Italy |
| Resigned | Pedro Ponce de Léon † | Bishop of Zamora, Spain | Bishop Emeritus |
| 47.0 | Died | Vittorio Ragazzoni † | Archbishop of Zadar (Zara), Croatia |
| Born | Lorenzo Raggi † | Genoa, Italy | Cardinal, Cardinal-Bishop of Palestrina |
| Born | Cesare Maria Antonio Rasponi † | Ravenna, Italy | Cardinal, Cardinal-Priest of San Giovanni a Porta Latina |
| Born | Francesco Ravizza † | Orvieto | Apostolic Nuncio to Portugal |
| Died | Dionisio Reudio, O.F.M. † | Archbishop of Naxos, Greece |
| Born | Antonio Ricciulli † | Rugliano | Bishop of Umbriatico (Umbriaticum), Italy |
| Born | Cosme Roger, O. Cist. † | Paris | Bishop of Lombez, France |
| Born | Pietro Martire Rusca, O.F.M. Conv. † | Venezia | Bishop of Caorle, Italy |
| Born | Giuseppe (Francisco Maria) Sanfelice † | Napoli | Archbishop of Cosenza, Italy |
| Appointed | Sebastião de São Pedro, O.S.A. † | Bishop of Cochin, India | Archbishop of Goa, India |
| Born | Diego Sarmiento Valladares † | Vigo | Bishop Emeritus of Plasencia, Spain |
| Died | Vincenzo Serafino † | Bishop of Teano, Italy |
| Born | Mikolaj Słupski † | | Auxiliary Bishop of Vilnius, Lithuania |
| 42.0 | Ordained Bishop | Pedro de Solier y Vargas, O.S.A. † | Bishop of Puerto Rico (Porto Rico) | Archbishop of Santo Domingo, Dominican Republic |
| Born | Thomas Tatumensis, O.P. † | Abaraner | Archbishop Emeritus of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia |
| Died | Domingo Valderrama y Centeno, O.P. † | Bishop of La Paz, Bolivia |
| 54.2 | Ordained Bishop | Pedro Vega † | Bishop of Cartagena, Colombia |
| 55.0 | Resigned | Fabrizio Verallo † | Bishop of San Severo, Italy | Cardinal, Bishop Emeritus |
| Born | Jean de Vintimille du Luc † | Luc | Bishop of Toulon, France |
| Died | Muzio Vitali † | Bishop of Vieste, Italy |
| Born | Georgius Vladagni † | Siroco | Bishop of Lezhë {Lesh, Alessio}, Albania |
| Appointed | Sébastien Zamet † | Bishop of Langres, France |
| Professed | Jan Zamoyski, O.P. † | Member of Order of Friars Preachers | Bishop of Lutsk (Łuck), Ukraine |
| 9 Jan | | Died | Mario Sassi † | Archbishop of Rossano, Italy |
| 12 Jan | 75.0 | Appointed | Juan Beltrán Guevara y Figueroa † | Archbishop of Santiago de Compostela, Spain |
| 41.0 | Appointed | Bernardino Buratti † | Bishop of Vulturara e Montecorvino, Italy |
| 48.0 | Appointed | Baccio Gherardini † | Bishop of Fiesole, Italy |
| Appointed | Scipione Pasquali † | Bishop of Casale Monferrato, Italy |
| 42.0 | Appointed | Cesare Ventimiglia † | Bishop of Terracina, Priverno e Sezze, Italy |
| 21 Jan | | Born | Laurenz Aidinger † | Erding | Bishop of Wiener Neustadt, Austria |
| Born | Benito Ignacio Salazar Goiri, O.S.B. † | Banos de Rio Tobia | Bishop of Barcelona, Spain |
| 24 Jan | 48.1 | Ordained Bishop | Baccio Gherardini † | Bishop of Fiesole, Italy |
| 26 Jan | 39.1 | Appointed | Giovanni Battista Lancellotti † | Bishop of Nola, Italy |
| 42.1 | Appointed | Adam Nowodworski † | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine | Bishop of Poznań, Poland |
| 1 Feb | | Ordained Bishop | Scipione Pasquali † | Bishop of Casale Monferrato, Italy |
| 3 Feb | | Born | Francisco Rodríguez Castañón † | Lois | Bishop of Calahorra y La Calzada, Spain |
| 8 Feb | 55.1 | Appointed | Christoph Weber † | Auxiliary Bishop of Mainz, Germany |
| 55.1 | Appointed | Christoph Weber † | Titular Bishop of Ascalon | Auxiliary Bishop of Mainz, Germany |
| 9 Feb | 66.1 | Appointed | François Buisseret † | Archbishop of Cambrai, France |
| 60.0 | Appointed | Luis Fernández de Córdoba † | Bishop of Málaga, Spain | Archbishop of Sevilla {Seville}, Spain |
| Appointed | Vitalis de L’Estang † | Coadjutor Bishop of Carcassonne, France | Bishop |
| Appointed | Vitalis de L’Estang † | Titular Bishop of Ephesus | Bishop of Carcassonne, France |
| 41.1 | Appointed | Pietro Paolo Miloto † | Bishop of Chioggia, Italy |
| 23 Feb | | Born | Johann Franz von Preysing-Hohenaschau † | München | Bishop of Chiemsee, Germany |
| 24 Feb | | Ordained Bishop | Vitalis de L’Estang † | Titular Bishop of Ephesus | Bishop of Carcassonne, France |
| 41.1 | Ordained Bishop | Pietro Paolo Miloto † | Bishop of Chioggia, Italy |
| Mar | | Born | Francesco Megale † | S. Mauri | Bishop of Isola, Italy |
| 13 Mar | | Born | Antonio Pignatelli del Rastrello † | Spinazzola | Pope (Roma {Rome}, Italy) |
| 14 Mar | 27.8 | Ordained Priest | Benoît-Théophile de Chevron Villette † | Priest | Archbishop of Tarentaise (Moûtiers-en-Tarentaise), France |
| 23 Mar | 74.2 | Resigned | Metello Bichi † | Archbishop of Siena, Italy | Cardinal, Archbishop Emeritus |
| 38.2 | Appointed | Vincenzo Caputo † | Bishop of San Severo, Italy | Bishop of Andria, Italy |
| 46.2 | Appointed | Ambrogio Gozzeo, O.P. † | Bishop of Stagno (Ston), Croatia |
| Appointed | Alessandro Petrucci † | Archbishop of Siena, Italy |
| 24 Mar | 66.2 | Installed | François Buisseret † | Archbishop of Cambrai, France |
| 60.2 | Died | Alessandro Rossi † | Bishop of Parma, Italy |
| 25 Mar | 39.2 | Ordained Bishop | Giovanni Battista Lancellotti † | Bishop of Nola, Italy |
| 42.2 | Ordained Bishop | Cesare Ventimiglia † | Bishop of Terracina, Priverno e Sezze, Italy |
| 27 Mar | | Born | Ulisse Orsini † | Ameriae | Bishop of Ripatransone, Italy |
| 28 Mar | 55.2 | Selected | Jean Dauvin † | Bishop of Namur {Namen}, Belgium |
| 30 Mar | 47.2 | Appointed | Fabio Piccolomini † | Bishop of Massa Marittima, Italy |
| 50.7 | Appointed | Nicolas Zoes (Zoesius) † | Bishop of ’s Hertogenbosch (Bois-le-Duc), Netherlands |
| Apr | | Born | Gaetano D’Afflitto, C.R. † | Scalen | Bishop of Cava (de’ Tirreni), Italy |
| 5 Apr | 41.3 | Ordained Bishop | Bernardino Buratti † | Bishop of Vulturara e Montecorvino, Italy |
| 47.3 | Ordained Bishop | Fabio Piccolomini † | Bishop of Massa Marittima, Italy |
| 12 Apr | | Born | Giovanni Battista Federici † | Spediae | Bishop of Sagone (Sagona), France |
| 20 Apr | | Born | Georg Sigismund Müller † | Rottenburg | Auxiliary Bishop of Konstanz {Constance}, Germany |
| 26 Apr | 42.3 | Ordained Bishop | Adam Nowodworski † | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine | Bishop of Poznań, Poland |
| 27 Apr | 38.3 | Ordained Bishop | Vincenzo Caputo † | Bishop of San Severo, Italy | Bishop of Andria, Italy |
| 2 May | 66.3 | Died | François Buisseret † | Archbishop of Cambrai, France |
| 4 May | | Appointed | Fabrizio Caracciolo † | Bishop of Tropea, Italy |
| 17 May | | Born | Virginio Orsini, O.S.Io.Hieros. † | Rome, Italy | Cardinal, Cardinal-Bishop of Frascati |
| 18 May | 29.4 | Appointed | Guillaume Aléaume † | Bishop of Riez, France | Bishop of Lisieux, France |
| 40.4 | Appointed | Baldassare Cagliares, O.S.Io.Hieros. † | Bishop of Malta |
| Appointed | João da Gama † | Bishop of Miranda (do Douro), Portugal |
| Appointed | Alessandro Filonardi † | Bishop of Aquino, Italy |
| 33.4 | Resigned | Filippo Filonardi † | Bishop of Aquino, Italy | Cardinal, Bishop Emeritus |
| 42.4 | Appointed | Paolo Palumbo, C.R. † | Bishop of Vieste, Italy | Bishop of Cassano all’Jonio, Italy |
| 51.4 | Appointed | Vincenzo Periti † | Bishop of Lavello, Italy |
| 49.4 | Appointed | Girolamo Pignatelli, C.R. † | Archbishop of Rossano, Italy |
| 28 May | 51.4 | Ordained Bishop | Vincenzo Periti † | Bishop of Lavello, Italy |
| 49.4 | Ordained Bishop | Girolamo Pignatelli, C.R. † | Archbishop of Rossano, Italy |
| 31 May | | Ordained Bishop | Alessandro Filonardi † | Bishop of Aquino, Italy |
| Jun | | Born | Onofrio Manes † | Licien | Bishop of Bisignano, Italy |
| 7 Jun | | Died | Pedro Manrique, O.S.A. † | Archbishop of Zaragoza, Spain |
| 13 Jun | 22.1 | Ordained Priest | Jost Knab † | Priest of Lausanne, Switzerland | Bishop |
| 15 Jun | 37.5 | Appointed | Bartol Kačić, O.F.M. † | Bishop of Makarska, Croatia |