| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 55.0 | Died | Sebastianus Aroldus, O.F.M. † | Bishop of Rethymo, Greece |
| Born | Christophoro d’Authier de Sisgau, O.S.B. † | Massiliae | Titular Bishop of Bethleem |
| Died | Stefano Bagliani (Baliano) † | Bishop of Brugnato, Italy |
| Died | Guilelmus Bastoni † | Bishop of Pavia, Italy |
| Died | Cesar Benedetti † | Bishop of Pesaro, Italy |
| Born | Henricus Borghi, O.S.M. † | Castelnovo di Serivia Terdonen | Bishop of Alife, Italy |
| Born | Domenico Carnevale † | Stilo | Bishop of Isola, Italy |
| Born | Georges d’Aubusson de la Feuillade † | | Bishop of Metz, France |
| Born | Eugenius Albertus d’Allamont † | Brussel | Bishop of Gent {Ghent, Gand}, Belgium |
| Born | Angelo della Noca, O.S.B. † | Napoli | Archbishop Emeritus of Rossano, Italy |
| Born | Diegue della Chiesa † | Cunei | Bishop of Nice, France |
| Born | Girolamo della Rovere † | Vinovo | Bishop of Vercelli, Italy |
| 49.0 | Installed | Gonzalo de Salazar, O.S.A. † | Bishop of Yucatán (Mérida), México |
| Resigned | Franjo Ergelski Hasanović † | Bishop of Bosnia, Croatia | Bishop of Zagreb (Agram), Croatia |
| 34.0 | Ordained Priest | Crispin Fuk von Hradiste, O. Praem. † | Priest of Order of the Canons Regular of Premontre; Norbertines | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| Resigned | Ascanio Giacobazio (Giacovazzi) † | Bishop of Anglona-Tursi, Italy | Bishop Emeritus |
| Died | Ludovico de Grigis, O.F.M. † | Bishop of Caorle, Italy |
| 55.0 | Died | Pirro Imperoli † | Bishop of Jesi, Italy |
| Born | György Jakosics † | Nitrien | Bishop of Eger, Hungary |
| 29.0 | Ordained Priest | St. Jozafat Kuncewicz, O.S.B.M. † | Priest | Archbishop |
| 48.0 | Died | Julius Lana † | Bishop of Vulturara e Montecorvino, Italy |
| Born | Vincenzo Lanfranchi, C.R. † | | Archbishop of Acerenza e Matera, Italy |
| Died | Antonio Lauro † | Bishop of Belcastro, Italy |
| Born | Gabriel de la Calle y Heredia † | Granada | Bishop Emeritus of Valladolid, Spain |
| Died | Scipione Montalegre † | Bishop of Isola, Italy |
| Died | Lelio Morelli † | Bishop of Capaccio, Italy |
| 43.0 | Died | Tommaso Nadal † | Bishop of Trebinje e Mrkan, Bosnia and Herzegovina |
| 51.0 | Ordained Bishop | Luis Pereira de Miranda † | Bishop of Santiago de Cabo Verde |
| Born | Celio Piccolomini † | Siena | Cardinal, Archbishop of Siena, Italy |
| 38.0 | Died | Giulio Ruffo † | Bishop of Oppido Mamertina, Italy |
| 54.0 | Died | Juan Ruiz Villoslada † | Bishop of Catania, Italy |
| Born | Marcos de Sobremonte † | Caracas | Bishop of Puerto Rico (Porto Rico) |
| Born | Luis Tello de Olivares † | Granaten | Bishop of Mondoñedo, Spain |
| Born | Pedro Vieira da Silva † | Leiria | Bishop of Leiria, Portugal |
| Jan | 73.0 | Died | Jean-François Bordini, C.O. † | Archbishop of Avignon, France |
| 64.0 | Died | Juan (Giovanni) de Rada, O.F.M. † | Bishop of Patti, Italy |
| 6 Jan | | Died | Vincenzo Bugiatti da Montesanto, O.P. † | Bishop of Teramo, Italy |
| Born | Franz Virgil von Spaur und Valör † | Spaur | Bishop of Chiemsee, Germany |
| 8 Jan | 68.0 | Died | Fernando Niño de Guevara † | Cardinal, Archbishop of Sevilla {Seville}, Spain |
| 11 Jan | 29.0 | Died | Orazio Maffei † | Cardinal, Archbishop of Chieti, Italy |
| 12 Jan | | Died | Diomede Carafa † | Bishop of Tricarico, Italy |
| 66.0 | Appointed | Michael Consoli, C.R. † | Bishop of Sora, Italy |
| Appointed | Juan Tomás de Blanes, O.P. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 60.0 | Appointed | Fernando Mendoza González † | Bishop of Cuzco, Peru |
| 55.0 | Appointed | Orazio Spannocchi † | Bishop of Chiusi, Italy |
| 13 Jan | | Died | Martín Vasquez de Arce, O.P. † | Bishop of Puerto Rico (Porto Rico) |
| 19 Jan | 39.0 | Appointed | Giovanni Battista Biglia † | Bishop of Pavia, Italy |
| Appointed | Alonso de Peralta † | Archbishop of La Plata o Charcas, Bolivia |
| 21 Jan | | Died | Girolamo Matteucci † | Bishop of Viterbo e Tuscania, Italy |
| 25 Jan | 66.1 | Ordained Bishop | Michael Consoli, C.R. † | Bishop of Sora, Italy |
| 26 Jan | 51.1 | Appointed | Lanfranco Margotti † | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 1 Feb | 39.1 | Ordained Bishop | Giovanni Battista Biglia † | Bishop of Pavia, Italy |
| 4 Feb | 63.1 | Died | Christoph Blöbel † | Prefect of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany |
| 51.1 | Died | João de Bragança † | Bishop of Viseu, Portugal |
| 43.1 | Appointed | Wilhelm Rinck von Balderstein † | Bishop of Basel, Switzerland |
| 9 Feb | 45.1 | Appointed | Pedro Manso † | Titular Archbishop of Caesarea in Palaestina |
| 34.1 | Appointed | Leonardo Tritonio † | Bishop of Poreč (Parenzo), Croatia |
| 10 Feb | 71.1 | Died | Séraphin Olivier-Razali † | Cardinal-Priest of San Salvatore in Lauro | Cardinal, Cardinal-Priest of Sant’Agnese in Agone |
| 11 Feb | | Died | Camillo Gualandi † | Bishop of Cesena, Italy |
| 15 Feb | 51.1 | Ordained Bishop | Lanfranco Margotti † | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 16 Feb | 59.1 | Appointed | Paulus Aemilius Sammarco † | Bishop of Umbriatico (Umbriaticum), Italy |
| 21 Feb | 60.1 | Ordained Bishop | Fernando Mendoza González † | Bishop of Cuzco, Peru |
| 22 Feb | 59.6 | Died | Ferdinando de’ Medici † | |
| 34.1 | Ordained Bishop | Leonardo Tritonio † | Bishop of Poreč (Parenzo), Croatia |
| 23.5 | Professed | Pedro Urbina Montoya, O.F.M. † | Member of Order of Friars Minor | Archbishop of Sevilla {Seville}, Spain |
| 24 Feb | 59.1 | Ordained Bishop | Paulus Aemilius Sammarco † | Bishop of Umbriatico (Umbriaticum), Italy |
| 25 Feb | 34.1 | Selected | August Wiederin von Ottersbach † | Prefect of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany |
| Mar | | Died | Lodovico de Clèves, Ord. Cluniacen. † | Titular Bishop of Bethleem |
| 11 Mar | | Appointed | Antonio Gallart Traginer † | Bishop of Perpignan-Elne, France | Bishop of Vic, Spain |
| 36.2 | Appointed | Sebastiano o Settimio Roberti (-Vittori) † | Bishop of Tricarico, Italy | Bishop Emeritus |
| 43.2 | Appointed | Michelangelo Tonti † | Cardinal, Archbishop (Personal Title) of Cesena, Italy |
| 50.2 | Appointed | Ulpiano (Volpiano) Volpi † | Archbishop of Chieti, Italy | Bishop of Novara, Italy |
| 16 Mar | | Appointed | Giambattista Visconti, O.S.A. † | Bishop of Teramo, Italy |
| 19 Mar | 36.2 | Ordained Bishop | Sebastiano o Settimio Roberti (-Vittori) † | Bishop of Tricarico, Italy | Bishop Emeritus |
| 22 Mar | | Ordained Bishop | Juan Tomás de Blanes, O.P. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 23 Mar | | Appointed | Pietro Paolo Quintavalle † | Bishop of Città Ducale, Italy |
| 24 Mar | | Died | Juan Ramírez de Arellano, O.P. † | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| 25 Mar | 46.8 | Died | Johann Wilhelm von Jülich-Kleve-Berg † | Former Bishop-Elect of Münster, Germany |
| 29 Mar | | Ordained Bishop | Giambattista Visconti, O.S.A. † | Bishop of Teramo, Italy |
| 30 Mar | 41.2 | Appointed | Florence Conry, O.F.M. † | Archbishop of Tuam, Ireland |
| 34.2 | Appointed | Domenico Rivarola † | Cardinal, Titular Archbishop of Nazareth |
| 5 Apr | 50.3 | Ordained Bishop | Ulpiano (Volpiano) Volpi † | Archbishop of Chieti, Italy | Bishop of Novara, Italy |
| 6 Apr | | Appointed | François-Etienne Dulci, O.P. † | Archbishop of Avignon, France |
| 72.3 | Died | Melchior Giedroyc † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 26 Apr | | Ordained Bishop | François-Etienne Dulci, O.P. † | Archbishop of Avignon, France |
| 27 Apr | 58.3 | Died | Guillaume de Berghes † | Archbishop of Cambrai, France |
| 28 Apr | 64.3 | Died | Sebastian Cattaneo, O.P. † | Bishop of Chiemsee, Germany |
| 29 Apr | 46.3 | Appointed | Claude de Gelas † | Bishop of Agen, France |
| 45.3 | Appointed | Lodovico Magio † | Bishop of Lucera, Italy |
| Appointed | Francesco Mottini † | Bishop of Brugnato, Italy |
| 1 May | | Died | Fabio Aresti † | Bishop of Lucera, Italy |
| 3 May | 55.9 | Ordained Bishop | Juan de Cervantes † | Bishop of Antequera, Oaxaca, México |
| 41.3 | Ordained Bishop | Florence Conry, O.F.M. † | Archbishop of Tuam, Ireland |
| 4 May | 34.3 | Confirmed | August Wiederin von Ottersbach † | Prefect of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany |
| 5 May | | Died | Tommaso Vannini † | Bishop of Avellino e Frigento, Italy |
| 10 May | 45.4 | Ordained Bishop | Lodovico Magio † | Bishop of Lucera, Italy |
| 14 May | | Born | Marijan Lisnjić, O.F.M. † | Imota | Bishop of Makarska, Croatia |
| 15 May | | Died | Alessandro Cospi † | Bishop of Bisceglie, Italy |
| 16 May | | Born | Fernando de Austria † | Toledo, Spain | Cardinal, Apostolic Administrator of Toledo, Spain |
| 22 May | | Born | Jan Kazimierz Wazy, S.J. † | Cardinal, |
| 23 May | | Born | Adrian Walenburch † | Rotterdam | Auxiliary Bishop of Köln {Cologne}, Germany |
| 24 May | | Ordained Bishop | Francesco Mottini † | Bishop of Brugnato, Italy |
| 25 May | 50.4 | Appointed | Manuel Baptista, O.F.M. † | Bishop of Angola e Congo, Angola |
| 24.6 | Appointed | Jean-Pierre Camus † | Bishop of Belley, France | Bishop Emeritus |
| 30 May | 41.5 | Selected | Philipp Christoph von Sötern † | Coadjutor Bishop of Speyer, Germany | Archbishop of Trier, Germany |
| Jun | 62.4 | Resigned | Juan Castro, O.S.A. † | Archbishop of Santafé en Nueva Granada, Colombia | Archbishop Emeritus |
| 10 Jun | | Appointed | Muzio Cinquini † | Bishop of Avellino e Frigento, Italy | Bishop Emeritus |
| Appointed | Bonaventura Secusio, O.F.M. † | Bishop of Catania, Italy |
| 35.4 | Appointed | Jean de Watteville, O. Cist. † | Bishop of Lausanne, Switzerland |
| 15 Jun | | Appointed | Bartolomeo Giorgi, O.F.M. † | Bishop of Pesaro, Italy |
| 35.5 | Appointed | Bernardo Giustiniano † | Bishop of Anglona-Tursi, Italy |
| 40.5 | Appointed | Ambrogio Gozzeo, O.P. † | Bishop of Trebinje e Mrkan, Bosnia and Herzegovina | Bishop of Stagno (Ston), Croatia |
| 60.5 | Appointed | Giovanni Sauli (Scali, Sacchi), O.P. † | Bishop of Aleria, France |
| Appointed | Luca Stella † | Bishop of Rethymo, Greece | Bishop of Padova {Padua}, Italy |
| 26 Jun | 54.1 | Died | Johann Philipp von Gebsattel † | Bishop-Elect of Bamberg, Germany |
| 28 Jun | 35.5 | Ordained Bishop | Bernardo Giustiniano † | Bishop of Anglona-Tursi, Italy |
| 60.5 | Ordained Bishop | Giovanni Sauli (Scali, Sacchi), O.P. † | Bishop of Aleria, France |