| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Stefano Agostini † | Forlì, Italy | Cardinal, Cardinal-Priest of San Giovanni a Porta Latina |
| Born | Hieronymi Andreis † | Tragurien | Bishop of Korčula (Curzola, Cursola), Croatia |
| Appointed | Hernando de Arias y Ugarte † | Bishop of Quito, Ecuador | Archbishop of Lima, Peru |
| Died | Bartolomeo Beccari, O.F.M. Conv. † | Bishop of Guardialfiera (Guardia), Italy |
| 26.0 | Appointed | Octave de Bellegarde † | Bishop of (Saint-Lizier de) Couserans, France | Archbishop of Sens, France |
| Born | Michael Angelus Broglia † | Chieri | Bishop of Vercelli, Italy |
| 53.0 | Died | Jeronimo de Carcamo † | Bishop of Trujillo, Peru |
| 48.0 | Resigned | Bartolomeo Cesi (Cesa) † | Archbishop of Conza, Italy | Cardinal, Bishop of Tivoli, Italy |
| Born | Neri Corsini † | Florence | Cardinal, Bishop Emeritus of Arezzo, Italy |
| Died | Andreas Corbelli † | Bishop of Canea (Cydonia, Egée), Greece |
| Born | Kazimierz Florian Czartoryski † | | Archbishop of Gniezno, Poland |
| Appointed | Joachim d’Estaing † | Bishop of Clermont, France |
| Born | Francesco Antonio De Luca † | Melphiten | Bishop Emeritus of Anglona-Tursi, Italy |
| Born | Giovanni Battista de Luca † | Venosa, Italy | Cardinal, Cardinal-Priest of San Girolamo dei Croati |
| Born | Carlo della Palma, C.R. † | Nolan | Bishop of Pozzuoli, Italy |
| Born | Martín de Espinosa y Monzón † | Valladolid, México | Bishop of Comayagua, Honduras |
| Born | Giovanni Francesco Ferrari † | Catanzaro | Bishop of Isola, Italy |
| Resigned | Coriolani Garzadori † | Bishop of Ossero (Osor), Croatia | Bishop Emeritus |
| Born | Giorgio Giorgicci † | Spalati | Bishop of Krk (Veglia), Croatia |
| Died | Vincenzo Giustiniani † | Bishop of Gravina (di Puglia), Italy |
| Died | Carolus Griming † | Auxiliary Bishop of Gurk, Austria |
| Born | Pál Hoffmann † | Szúletett | Bishop of Pécs, Hungary |
| Born | Johannes Holler † | Echternach | Auxiliary Bishop of Trier, Germany |
| 51.5 | Resigned | François de Joyeuse † | Archbishop of Toulouse, France | Cardinal, Archbishop of Rouen, France |
| Born | Roberto Korlatovich, O.F.M. † | | Former Bishop-Elect of Beograd {Belgrade}, Serbia |
| Appointed | Jan Kuczborski † | Bishop of Chelmno (Culma, Kulm), Poland |
| Born | Eustache Le Clerc de Lesseville † | Paris | Bishop of Coutances, France |
| Died | Pomponio de Magistris † | Bishop of Terracina, Priverno e Sezze, Italy |
| Born | Luis Guillermo (Guillén) de Moncada de Aragón Luna de Peralta y de La Cerda † | Palermo, Italy | Cardinal, Priest |
| Born | Juan Molino Navarrete, O.F.M. † | Corduben | Bishop of Palencia, Spain |
| 24.0 | Ordained Priest | Juan de Orta y Moreno † | Priest | Bishop of Orihuela, Spain |
| Died | Girolamo Palazzuoli † | Bishop of Isola, Italy |
| Died | Gaspare Paluzzi degli Albertoni † | Bishop of Sant’Angelo dei Lombardi-Bisaccia, Italy |
| Born | Jacobus Pedicini, C.R.M. † | Vitulano | Bishop of Guardialfiera (Guardia), Italy |
| Born | Franciscus Perrone † | Napoli | Bishop of Caiazzo, Italy |
| Died | Charles Pérusse des Cars † | Bishop of Langres, France |
| 51.0 | Died | Paulus Pico, O.P. † | Bishop of Vulturara e Montecorvino, Italy |
| 53.0 | Died | Jeronimo Quintanilla, O. Cist. † | Bishop of São Tomé e Príncipe |
| Succeeded | Sebastiano Rinaldi † | Bishop of Guardialfiera (Guardia), Italy |
| Born | Giovanni Roano e Corrionero † | Vigliares | Archbishop of Monreale, Italy |
| Born | Carlo Rossetti † | Ferrara | Cardinal, Bishop of Faenza, Italy |
| Ordained Bishop | Jerónimo Ruiz Camargo † | Bishop of Ciudad Rodrigo, Spain | Bishop of Córdoba, Spain |
| Born | Francisco Antonio Sarmiento y Luna (Enríquez), O.S.A. † | Spain | Bishop of Coria, Spain |
| 51.2 | Ordained Priest | Francesco Sforza † | Priest | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| Appointed | Gilles de Souvray † | Bishop of (Saint-Bernard de) Comminges, France |
| Died | Claudius Sozomenus † | Auxiliary Bishop of Salzburg, Austria |
| 71.0 | Resigned | Giovanni Battista Zuccato † | Bishop of Nusco, Italy | Bishop Emeritus |
| 6 Jan | | Born | Leopold Wilhelm von Österreich † | Wiener Neustadt | Bishop-Elect of Passau, Germany |
| 26 Jan | 31.1 | Installed | François de Péricard † | Bishop of Evreux, France |
| 27 Jan | 39.1 | Appointed | Lucas de Franchis † | Bishop of Ugento, Italy |
| 28 Jan | 79.9 | Died | Francesco Mantica † | Cardinal, Cardinal-Priest of Santa Maria del Popolo |
| 1 Feb | 60.1 | Died | Jean Daffis † | Bishop of Lombez, France |
| 15 Feb | 62.1 | Died | Luis Cerqueira, S.J. † | Bishop of Funay (Funai), Japan |
| 17 Feb | 60.1 | Appointed | Diego de Arce, O.F.M. † | Bishop of Cassano all’Jonio, Italy |
| 51.6 | Appointed | Pedro González del Castillo † | Bishop of Calahorra y La Calzada, Spain |
| 46.1 | Appointed | Joannes Albertus de Garzonibus † | Bishop of Canea (Cydonia, Egée), Greece |
| 35.3 | Confirmed | Albert von Törring † | Bishop of Regensburg, Germany |
| 46.1 | Appointed | Fernando de Vera y Zuñiga, O.S.A. † | Auxiliary Bishop of Badajoz, Spain | Bishop of Cuzco, Peru |
| 46.1 | Appointed | Fernando de Vera y Zuñiga, O.S.A. † | Titular Bishop of Bugia | Bishop of Cuzco, Peru |
| 28 Feb | | Died | Jean Richardot † | Archbishop of Cambrai, France |
| 2 Mar | 28.2 | Ordained Bishop | François de Harlay de Champvallon † | Titular Archbishop of Augustopolis in Phrygia | Archbishop Emeritus of Rouen, France |
| 3 Mar | | Appointed | Curzio Cocci † | Archbishop of Conza, Italy |
| 36.2 | Appointed | Giovanni Francesco Guidi di Bagno † | Titular Archbishop of Patrae (Veters) | Cardinal, Bishop Emeritus of Rieti, Italy |
| Appointed | Alphonse de La Croix de Chevrières † | Coadjutor Bishop of Grenoble, France | Bishop Emeritus |
| Appointed | Alphonse de La Croix de Chevrières † | Titular Bishop of Chalcedon | Bishop Emeritus of Grenoble, France |
| 4 Mar | 86.2 | Died | Papirio Picedi † | Bishop of Parma, Italy |
| 9 Mar | | Ordained Bishop | Curzio Cocci † | Archbishop of Conza, Italy |
| 11 Mar | | Died | Ottavio Abbiosi † | Bishop Emeritus of Pistoia, Italy |
| 17 Mar | 27.8 | Appointed | Bernard Daffis † | Bishop of Lombez, France |
| Appointed | Ottaviano Garzadori † | Bishop of Ossero (Osor), Croatia |
| 18 Mar | 53.2 | Died | Sebastião de Ascensão, O.P. † | Bishop of Santiago de Cabo Verde |
| 20 Mar | 39.6 | Ordained Priest | Enrique Pimentel Zúñiga † | Priest | Bishop of Cuenca, Spain |
| 30 Mar | | Born | Antonio Bichi † | Siena | Cardinal, Bishop of Osimo, Italy |
| 62.1 | Ordained Bishop | Melchior Klesl † | Cardinal, Bishop of Wien, Austria |
| Died | Jan Zamoyski, O.S.B. † | Archbishop of Lviv, Ukraine |
| 31 Mar | | Ordained Bishop | Ottaviano Garzadori † | Bishop of Ossero (Osor), Croatia |
| 5 Apr | | Appointed | Josyf Veliamyn Rutski † | Archbishop of Kyiv-Halyč {Kiev} (Ruthenian), Ukraine |
| 7 Apr | 62.3 | Appointed | Martín Terrer Valenzuela, O.S.A. † | Bishop of Tarazona, Spain | Archbishop of Zaragoza, Spain |
| 13 Apr | 36.3 | Ordained Bishop | Giovanni Francesco Guidi di Bagno † | Titular Archbishop of Patrae (Veters) | Cardinal, Bishop Emeritus of Rieti, Italy |
| Ordained Bishop | Antoine de Hennin † | Bishop of Ypres (Ieper), Belgium |
| 20 Apr | 35.5 | Ordained Bishop | Albert von Törring † | Bishop of Regensburg, Germany |
| 23 Apr | | Died | Ascanio Parisi † | Bishop of Marsico Nuovo, Italy |
| 3 May | | Died | Sasbout Vosmeer † | Titular Bishop of Philippi |
| 5 May | 31.3 | Appointed | Carlo Pinti † | Coadjutor Bishop of Nicotera, Italy | Bishop |
| 31.3 | Appointed | Carlo Pinti † | Titular Bishop of Comana Armeniae | Bishop of Nicotera, Italy |
| 12 May | 34.4 | Appointed | Giuseppe di Ceva † | Bishop of Ivrea, Italy |
| 20 May | 34.4 | Ordained Bishop | Giuseppe di Ceva † | Bishop of Ivrea, Italy |
| 30 May | | Succeeded | Jacobus Camus de Poutcarré † | Bishop of Sées, France | Coadjutor Bishop |
| Jun | | Died | Jerónimo Teixeira Cabral † | Bishop of Miranda (do Douro), Portugal |
| 1 Jun | 28.0 | Ordained Bishop | Bernard Daffis † | Bishop of Lombez, France |
| 4 Jun | 75.4 | Appointed | Ottavio Accoramboni † | Apostolic Nuncio to Portugal | Archbishop Emeritus of Urbino, Italy |
| 10 Jun | 78.4 | Died | Tomás Gargal (Gargallo), O.S.Io.Hieros. † | Bishop of Malta |
| 11 Jun | 54.4 | Died | Pedro Ordóñez y Flórez † | Archbishop of Santafé en Nueva Granada, Colombia |
| 28 Jun | | Installed | Francisco de la Cámara y Raya, O.P. † | Bishop of Panamá |
| 1 Jul | 58.6 | Died | Maximiliano de Austria † | Archbishop of Santiago de Compostela, Spain |
| 2 Jul | | Died | Ghisbertus Masius † | Bishop of ’s Hertogenbosch (Bois-le-Duc), Netherlands |
| 9 Jul | 32.5 | Installed | Filippo Filonardi † | Cardinal-Priest of Santa Maria del Popolo | Cardinal, Bishop Emeritus of Aquino, Italy |
| Appointed | Michael Rezzi (Resti) † | Bishop of Nusco, Italy | Bishop of Ascoli Satriano, Italy |
| 59.5 | Appointed | Alessandro Rossi † | Bishop of Parma, Italy |
| 19 Jul | | Appointed | Francisco Diaz de Cabrera y Córdoba, O.P. † | Bishop of Trujillo, Peru |
| 21 Jul | | Appointed | Sixtus Carcanus, O.P. † | Auxiliary Bishop of Gurk, Austria |
| Appointed | Sixtus Carcanus, O.P. † | Titular Bishop of Germanicia | Auxiliary Bishop of Gurk, Austria |
| 50.6 | Appointed | Timoteo Caselli, O.P. † | Bishop of Marsico Nuovo, Italy |
| Appointed | Francesco Diotallevi † | Bishop of Sant’Angelo dei Lombardi-Bisaccia, Italy |
| 46.2 | Appointed | Franciszek Ursinus † | Auxiliary Bishop of Wrocław (Breslau), Poland |
| 46.2 | Appointed | Franciszek Ursinus † | Titular Bishop of Nicopolis ad Nestum | Auxiliary Bishop of Wrocław (Breslau), Poland |
| 27 Jul | | Ordained Bishop | Sixtus Carcanus, O.P. † | Titular Bishop of Germanicia | Auxiliary Bishop of Gurk, Austria |
| 13 Aug | | Born | Adam Lorenz von Törring-Stein † | Stein | Bishop of Regensburg, Germany |
| 21 Aug | 82.2 | Died | Juan Alonso Moscoso † | Bishop of Málaga, Spain |
| 27 Aug | 45.7 | Appointed | Carlo Bornio † | Coadjutor Bishop of Castro di Puglia, Italy | Bishop |
| 45.7 | Appointed | Carlo Bornio † | Titular Bishop of Coronea | Bishop of Castro di Puglia, Italy |
| Appointed | Tomás Cortés de Sangüesa † | Bishop of Teruel, Spain |
| 39.7 | Appointed | Girolamo Curlo † | Bishop of Ventimiglia, Italy |
| Appointed | Andrés de San Jerónimo, O.S.H. † | Bishop of Vic, Spain |
| 28 Aug | | Died | Bartolomeo Lanfredini † | Bishop of Fiesole, Italy |
| 30 Aug | 34.5 | Professed | Orazio Giustiniani, C.O. † | Member of Confederation of Oratorians of St. Philip Neri | Cardinal, Bishop Emeritus of Nocera Umbra, Italy |
| 6 Sep | 28.8 | Confirmed | Hildebrand Jost † | Bishop of Sion {Sitten}, Switzerland |
| 7 Sep | 45.7 | Ordained Bishop | Carlo Bornio † | Titular Bishop of Coronea | Bishop of Castro di Puglia, Italy |
| 13 Sep | 61.2 | Died | Juan de Cervantes † | Bishop of Antequera, Oaxaca, México |
| 64.7 | Died | François Vernède-Corneillan † | Bishop of Rodez, France |
| 14 Sep | | Succeeded | Bernardin Corneillan † | Bishop of Rodez, France |
| 22 Sep | | Appointed | Diego Ordóñez, O.F.M. † | Bishop of Jaca, Spain | Bishop of Salamanca, Spain |
| 28 Sep | | Ordained Bishop | Hernando de Arias y Ugarte † | Bishop of Quito, Ecuador | Archbishop of Lima, Peru |
| 6 Oct | | Died | Antonio Benegas Figueroa † | Bishop of Sigüenza, Spain |
| 60.8 | Appointed | Antonio Corrionero † | Bishop of Islas Canarias {Canary Islands}, Spain | Bishop of Salamanca, Spain |
| Installed | Francisco Diaz de Cabrera y Córdoba, O.P. † | Bishop of Trujillo, Peru |
| 34.6 | Appointed | Giovanni Battista Deti † | Cardinal-Priest of Santi Marcellino e Pietro | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 53.9 | Appointed | Pedro Vega † | Bishop of Cartagena, Colombia |
| 13 Oct | | Died | Jullio del Carretto † | Bishop of Casale Monferrato, Italy |
| 19 Oct | | Died | Diogo Correia † | Bishop of Portalegre, Portugal |
| Died | Diego Corrêa de Souza † | Bishop of Portalegre, Portugal |
| 30 Oct | 53.8 | Died | François de La Guesle † | Archbishop of Tours, France |
| Nov | 65.8 | Died | Antonio Bornio † | Bishop of Castro di Puglia, Italy |
| 45.8 | Succeeded | Carlo Bornio † | Bishop of Castro di Puglia, Italy |
| Died | Bartolomeo Cartolario † | Bishop of Chioggia, Italy |
| 5 Nov | | Died | Fabrizio Gallo † | Bishop of Nola, Italy |
| 17 Nov | 41.9 | Appointed | Pedro de Solier y Vargas, O.S.A. † | Bishop of Puerto Rico (Porto Rico) | Archbishop of Santo Domingo, Dominican Republic |
| 24 Nov | 50.9 | Appointed | Agostino Cassandra, O.F.M. Conv. † | Bishop of Gravina (di Puglia), Italy |
| Appointed | Andrea Giustiniani, O.P. † | Bishop of Isola, Italy |
| Appointed | Antonio Massa † | Bishop of Castro [del Lazio], Italy |
| Appointed | Jan Andrzej Próchnicki † | Archbishop of Lviv, Ukraine |
| 30 Nov | | Ordained Bishop | Andrea Giustiniani, O.P. † | Bishop of Isola, Italy |
| 7 Dec | 29.0 | Ordained Bishop | Hildebrand Jost † | Bishop of Sion {Sitten}, Switzerland |
| 24 Dec | 68.0 | Died | Fernando Trexo y Senabria, O.F.M. † | Bishop of Córdoba (Tucumán), Argentina |
| 27 Dec | 46.6 | Ordained Bishop | Franciszek Ursinus † | Titular Bishop of Nicopolis ad Nestum | Auxiliary Bishop of Wrocław (Breslau), Poland |
| 28 Dec | 51.0 | Ordained Bishop | Agostino Cassandra, O.F.M. Conv. † | Bishop of Gravina (di Puglia), Italy |
| 31 Dec | 42.0 | Ordained Priest | Cesare Ventimiglia † | Priest | Bishop of Terracina, Priverno e Sezze, Italy |