| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 66.0 | Died | Diego Aduarte, O.P. † | Bishop of Nueva Segovia, Philippines |
| Born | Giovan Donato Giannoni Alitto † | Bitonto | Bishop of Ruvo (Ruo)(di Puglia), Italy |
| Born | Isidoro Aparici Gilart † | Benifaraig | Auxiliary Bishop of Valencia, Spain |
| Born | Leonardo Balsarini † | Chio | Bishop Emeritus of Chios (Scio), Greece |
| Died | Tommaso Brandolino, O.P. † | Bishop of Minori, Italy |
| Born | Francesco Maria Cafferi (Caffori) † | Grottaglie | Bishop of Castro di Puglia, Italy |
| Born | José Cosio Barreda † | Villanueva de Henares | Bishop of Salamanca, Spain |
| Born | Giambattista Costaguti † | Rome, Italy | Cardinal, Cardinal-Priest of Sant’Anastasia |
| Born | Niccolò dell’Acciaia † | Senen | Bishop of Massa Marittima, Italy |
| Born | Dominique d’Esclaux de Mesplez (Messelez) † | Aquen | Bishop of Lescar, France |
| Appointed | Francisco dos Martyres, O.F.M. † | Archbishop of Goa, India |
| 56.9 | Selected | Nicolas Dufiff † | Bishop of Arras, France | Bishop-Elect |
| Died | Henryk Firlej † | Bishop of Poznań, Poland |
| 19.8 | Converted | Friedrich von Hessen-Darmstadt, O.S.Io.Hieros. † | Cardinal, Bishop of Wrocław (Breslau), Poland |
| 50.0 | Died | Luis Jiménez, O. de M. † | Bishop of Ugento, Italy |
| Born | Stephanus Kada † | Transilvania | Titular Bishop of Augustopolis in Phrygia |
| Born | Charles-Antoine de la Garde de Chambonas † | Uticen | Bishop of Viviers (Aps), France |
| 47.0 | Appointed | Jan Lipski † | Bishop of Chelmno (Culma, Kulm), Poland | Archbishop of Gniezno, Poland |
| Appointed | Jacques Le Noël du Perron † | Bishop of Angoulême, France | Bishop of Evreux, France |
| Died | Giulio Masi † | Bishop of Monopoli, Italy |
| 63.0 | Died | Gerolamo Mezzamico † | Bishop of Trevico, Italy |
| Born | José Mora † | | Auxiliary Bishop of Tarragona, Spain |
| Born | Carlo Francesco Muti † | Roma | Bishop of Città della Pieve, Italy |
| Born | Ascanio Paganelli † | Camerinen | Bishop of Montalto (delle Marche), Italy |
| 55.0 | Died | Bernardino Piccoli † | Bishop of Strongoli, Italy |
| Born | Nicolaus Plumbensis, O.F.M. † | Plumbensi | Bishop of Bosnia, Croatia |
| Appointed | Miguel de Portugal † | Bishop of Lamego, Portugal |
| Born | Tomás Reluz, O.P. † | Ciempozuelos | Bishop of Oviedo, Spain |
| Born | Jean-Armand de Rotondy de Biscarras † | Paris | Bishop of Béziers, France |
| 56.0 | Ordained Bishop | Mauro de Villarroel, O.S.B. † | Bishop of Jaca, Spain |
| 59.0 | Ordained Bishop | Diego de Zambrana de Villalobos y Cordero † | Bishop of Concepción, Chile | Bishop of Santiago de Chile |
| 7 Jan | 58.0 | Appointed | Juan García Arlés † | Bishop of Orihuela, Spain |
| 28 Jan | 65.1 | Appointed | Philippe Cospéan † | Bishop of Lisieux, France |
| Confirmed | Gaspard de Daillon du Lude † | Bishop of Albi, France |
| Appointed | Juan Dionisio Fernández Portocarrero † | Bishop of Guadix, Spain | Bishop of Cádiz, Spain |
| Feb | | Died | Pierre Habert † | Bishop of Cahors, France |
| Born | Giacinto Camillo Maradei † | Laino Castello | Bishop of Policastro, Italy |
| 46.1 | Died | Arcasio Ricci † | Bishop of Gravina (di Puglia), Italy |
| 1 Feb | 40.1 | Selected | Johann Flugi † | Bishop of Chur, Switzerland |
| 3 Feb | 50.8 | Ordained Bishop | Diego Arce Reinoso † | Bishop of Tui, Spain | Bishop Emeritus of Plasencia, Spain |
| 10 Feb | 59.1 | Died | Charles Bobba de Montferrat † | Bishop of Saint-Jean-de-Maurienne, France |
| 12 Feb | | Died | Henri Boyvin de Péricard † | Coadjutor Bishop of Avranches, France |
| 16 Feb | | Born | Gottfried Kapaun von Swoykow † | Hradec Králové | Bishop of Hradec Králové, Czech Republic |
| 18 Feb | | Appointed | Gabriel de Beauvau de Rivarennes † | Bishop of Nantes, France | Bishop Emeritus |
| Appointed | Leonel de Cervantes y Caravajal † | Bishop of Antequera, Oaxaca, México |
| 54.1 | Appointed | Camillo Melzi † | Cardinal, Archbishop of Capua, Italy |
| Appointed | Juan Bautista Pellicer † | Bishop of Segorbe, Spain |
| 57.5 | Appointed | Gaspar Prieto Orduña, O. de M. † | Bishop of Perpignan-Elne, France |
| 25 Feb | | Ordained Bishop | Gabriel Ortiz Sotomayor † | Bishop of Badajoz, Spain |
| Mar | | Born | Bartolomeo Gradenigo † | Venice | Bishop of Brescia, Italy |
| 1 Mar | 31.2 | Selected | Barthélemi d’Elbène † | Bishop of Agen, France |
| 2 Mar | | Died | Louis de Claret † | Bishop of Saint-Papoul, France |
| 3 Mar | | Appointed | Petrus Bellino † | Bishop of Saluzzo, Italy |
| Appointed | Pietro Gaudenzi † | Bishop of Arbe (Rab), Croatia |
| Appointed | Gewargios Omaira el-Douaihy el-Ehdeni † | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| 36.2 | Appointed | Scipione Pannocchieschi d’Elci † | Archbishop of Pisa, Italy | Cardinal, Archbishop Emeritus |
| 6 Mar | 66.2 | Died | Antonio Arrigoni, O.F.M. † | Bishop of Ripatransone, Italy |
| 23 Mar | 54.2 | Ordained Bishop | Diego Serrano Sotomayor, O. de M. † | Bishop of Solsona, Spain | Bishop of Guadix, Spain |
| 24 Mar | | Ordained Bishop | Pietro Gaudenzi † | Bishop of Arbe (Rab), Croatia |
| 54.2 | Ordained Bishop | Camillo Melzi † | Cardinal, Archbishop of Capua, Italy |
| 25 Mar | | Died | Claude du Vergier † | Bishop of Lavaur, France |
| 30 Mar | | Ordained Bishop | Petrus Bellino † | Bishop of Saluzzo, Italy |
| Ordained Bishop | Francesco Bianchi † | Bishop of Sapë, Albania |
| Apr | | Born | Giovanni Bonella, O. Carm. † | Vallisoletan | Bishop of Tropea, Italy |
| Born | Pedro Pacheco, O.P. † | Castello de Almada | Bishop of Cochin, India |
| 7 Apr | 31.3 | Appointed | Pierre de Bertier † | Coadjutor Bishop of Montauban, France | Bishop |
| 31.3 | Appointed | Pierre de Bertier † | Titular Bishop of Augustopolis in Phrygia | Bishop of Montauban, France |
| Appointed | Giovanni Battista Colonna † | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| 61.3 | Appointed | Orazio Muscettola † | Bishop of Trevico, Italy |
| Appointed | Maurizio Ragano † | Bishop of Fondi (Fundi), Italy |
| 9 Apr | 52.3 | Died | John Roche † | Bishop of Ferns, Ireland |
| 14 Apr | | Born | Ambrosio Angelini † | S. Constantii | Bishop Emeritus of Acquapendente, Italy |
| 62.3 | Died | Tiberio Muti † | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 27 Apr | | Ordained Bishop | Giovanni Battista Colonna † | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| May | | Born | Carlo Filippo Sfondrati, B. † | Mandello | Bishop of Volterra, Italy |
| Died | Scipion de Villeneuve-Thorenc † | Bishop of Grasse, France |
| 1 May | 56.3 | Resigned | Diego Castejón Fonseca † | Bishop of Lugo, Spain | Bishop of Tarazona, Spain |
| 14 May | 44.4 | Appointed | Alessandro Cesarini (Jr.) † | Bishop of Viterbo e Tuscania, Italy | Cardinal, Bishop Emeritus |
| Confirmed | Dinis de Melo e Castro † | Bishop of Viseu, Portugal | Bishop of Guarda, Portugal |
| 19 May | | Died | Pedro Cifuentes Loarte † | Bishop of Avila, Spain |
| 20 May | | Born | Pier Matteo Petrucci, C.O. † | Jesi | Cardinal, Bishop Emeritus of Jesi, Italy |
| 25 May | 44.4 | Ordained Bishop | Alessandro Cesarini (Jr.) † | Bishop of Viterbo e Tuscania, Italy | Cardinal, Bishop Emeritus |
| 58.4 | Ordained Bishop | Juan García Arlés † | Bishop of Orihuela, Spain |
| 9 Jun | 42.4 | Appointed | Pedro Barbosa de Eça † | Bishop of Leiria, Portugal |
| Appointed | Francisco Barreto † | Bishop of Faro {Algarve}, Portugal |
| Appointed | Martín Carrillo Alderete † | Bishop of Osma, Spain | Archbishop of Granada, Spain |
| 31.4 | Confirmed | Barthélemi d’Elbène † | Bishop of Agen, France |
| 50.4 | Confirmed | Sebastião de Matos de Noronha † | Archbishop of Braga, Portugal |
| Appointed | Jorge de Melo † | Bishop of Coimbra, Portugal |
| Confirmed | Gaspar do Rego da Fonseca † | Bishop of Porto, Portugal | Auxiliary Bishop of Lisboa {Lisbon}, Portugal |
| 38.4 | Appointed | Antonio Santacroce † | Archbishop of Urbino, Italy | Cardinal, Archbishop Emeritus |
| 54.4 | Appointed | Juan Vélez de Valdivielso † | Bishop of Lugo, Spain | Bishop of Cartagena (en España) |
| 12 Jun | | Born | Francesco Nerli (Jr.) † | Rome | Cardinal, Bishop Emeritus of Assisi, Italy |
| 21 Jun | 30.8 | Selected | Antoine Godeau † | Bishop of Grasse, France | Bishop of Vence, France |
| 23 Jun | | Appointed | Francisco Garcia Mendes, S.J. † | Coadjutor Archbishop of Cranganore (Angamala), India | Archbishop |
| Appointed | Francisco Garcia Mendes, S.J. † | Titular Bishop of Ascalon | Archbishop of Cranganore (Angamala), India |
| 58.5 | Appointed | Antonio Valdés Herrera † | Bishop of Oviedo, Spain | Bishop of Córdoba, Spain |
| 27 Jun | | Born | Giovanni Dominico Tomati † | Caravonica | Titular Bishop of Cyrene |
| 29 Jun | | Ordained Priest | Marcello Stella † | Priest | Bishop of Isernia, Italy |
| Jul | 65.5 | Died | Nicola Bellolatto † | Bishop of Bisceglie, Italy |
| 65.5 | Died | Antonius Lambardi † | Titular Archbishop of Nazareth |
| 2 Jul | | Born | Nicolò Nardini † | Capranicae | Bishop of Acquapendente, Italy |
| 13 Jul | 21.5 | Ordained Priest | Francesco Angelucci † | Priest | Bishop of Veroli, Italy |
| Died | Alfonso Mesía de Tovar † | Bishop of Astorga, Spain |
| 20 Jul | 75.0 | Died | Francisco Verdugo Cabrera † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 21 Jul | 55.6 | Appointed | Juan Sánchez Duque de Estrada † | Bishop of Guadalajara, Jalisco, México | Bishop of Trujillo, Peru |
| Appointed | Alexander Sokołowski † | Bishop of Kyiv (Kijów), Ukraine | Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| 45.6 | Appointed | Francisco Sotomayor, O.C.S. Aug. † | Auxiliary Bishop of Lisboa {Lisbon}, Portugal |
| 45.6 | Appointed | Francisco Sotomayor, O.C.S. Aug. † | Titular Bishop of Targa | Auxiliary Bishop of Lisboa {Lisbon}, Portugal |
| 53.6 | Appointed | Andrzej Szołdrski † | Bishop of Poznań, Poland |
| 3 Aug | 76.6 | Died | Gonzalo de Salazar, O.S.A. † | Bishop of Yucatán (Mérida), México |
| 4 Aug | | Died | Lopo de Sequeira Pereira † | Bishop of Guarda, Portugal |
| 20 Aug | | Died | Ferdinand de Rye † | Archbishop of Besançon, France |
| 70.6 | Succeeded | François de Rye † | Archbishop of Besançon, France |
| 1 Sep | | Appointed | Ippolito Borghese, O.S.B. † | Bishop of Pienza, Italy |
| 62.2 | Confirmed | Juan Alonso de Solis y Mendoza, O. Carm. † | Bishop of Puerto Rico (Porto Rico) |
| Appointed | Bernard Despruets † | Bishop of Saint-Papoul, France |
| 46.7 | Appointed | Petras Parčevskis † | Bishop of Smoleńsk, Poland | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 7 Sep | 42.7 | Ordained Bishop | Pedro Barbosa de Eça † | Bishop of Leiria, Portugal |
| 46.7 | Ordained Bishop | Petras Parčevskis † | Bishop of Smoleńsk, Poland | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 9 Sep | 75.1 | Appointed | Francisco Verdugo Cabrera † | Archbishop of México, Federal District | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 12 Sep | 51.4 | Died | Giovanni Pietro Volpi † | Bishop of Novara, Italy |
| 20 Sep | | Selected | Tommaso Caracciolo, C.R. † | Archbishop of Taranto, Italy |
| 22 Sep | 39.8 | Appointed | Giuseppe della Corgna (Cornea), O.P. † | Bishop of Squillace, Italy | Bishop Emeritus of Orvieto, Italy |
| 40.8 | Confirmed | Johann Flugi † | Bishop of Chur, Switzerland |
| Appointed | Piotr Gembicki † | Bishop of Przemyśl, Poland | Bishop of Kraków, Poland |
| 31.1 | Confirmed | Antoine Godeau † | Bishop of Grasse, France | Bishop of Vence, France |
| Appointed | Onorato Onorati † | Bishop of Urbania-Sant’Angelo in Vado, Italy | Bishop Emeritus |
| Appointed | Niccolò Orsini † | Bishop of Ripatransone, Italy |
| Appointed | Alain de Solminihac, O.S.A. † | Bishop of Cahors, France |
| 42.7 | Appointed | Zacharias Stumpf † | Auxiliary Bishop of Würzburg, Germany |
| 42.7 | Appointed | Zacharias Stumpf † | Titular Bishop of Domitiopolis | Auxiliary Bishop of Würzburg, Germany |
| 50.7 | Appointed | Blas Tineo Palacios, O. de M. † | Auxiliary Bishop of Granada, Spain |
| 50.7 | Appointed | Blas Tineo Palacios, O. de M. † | Titular Bishop of Thermopylae | Auxiliary Bishop of Granada, Spain |
| 25 Sep | 53.7 | Installed | Andrzej Szołdrski † | Bishop of Poznań, Poland |
| 28 Sep | | Ordained Bishop | Niccolò Orsini † | Bishop of Ripatransone, Italy |
| 54.7 | Ordained Bishop | Juan Vélez de Valdivielso † | Bishop of Lugo, Spain | Bishop of Cartagena (en España) |
| Oct | | Born | Francesco Azzolini † | Torre di Palme | Bishop of Ripatransone, Italy |
| 63.8 | Died | Sigismondo Gambacorta, C.R.S.A. † | Bishop of Telese o Cerreto Sannita, Italy |
| Born | Francisco de Sequeiros y Sotomayor, O.S.A. † | Bocas, Spain | Bishop of Cassano all’Jonio, Italy |
| 2 Oct | | Died | Jorge de Melo † | Bishop of Coimbra, Portugal |
| 3 Oct | 49.8 | Selected | Girolamo Martini † | Bishop of Ugento, Italy |
| 15 Oct | | Died | Giovanni Falces, O.S.H. † | Archbishop of Brindisi, Italy |
| Born | Giulio Troili † | Maceraten | Bishop of Foligno, Italy |
| 28 Oct | 51.8 | Ordained Bishop | Cornelius Janssen † | Bishop of Ypres (Ieper), Belgium |
| Nov | | Born | Pierre-Armand du Camboust de Coislin † | Paris | Cardinal, Bishop of Orléans, France |
| Born | Anselmo Gómez de la Torre, O.S.B. † | | Bishop Emeritus of Tui, Spain |
| 2 Nov | | Died | Giovanni Benini † | Titular Archbishop of Hadrianopolis in Haemimonto |
| 10 Nov | | Appointed | Sallustio Bartoli † | Bishop of Strongoli, Italy |
| 62.9 | Appointed | Giulio Savelli † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Cardinal-Bishop of Frascati |
| 13 Nov | 51.9 | Died | Bartolomeo Frigerio † | Bishop of Venosa, Italy |
| 16 Nov | | Ordained Bishop | Sallustio Bartoli † | Bishop of Strongoli, Italy |
| 23 Nov | 66.3 | Died | Franz Seraph von Dietrichstein † | Cardinal, Archbishop of Olomouc (Olmütz), Czech Republic |
| 27 Nov | | Ordained Bishop | Alexander Sokołowski † | Bishop of Kyiv (Kijów), Ukraine | Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| 29 Nov | 43.7 | Ordained Priest | Franz Wilhelm von Wartenberg † | Priest of Osnabrück, Germany | Cardinal, Bishop of Regensburg, Germany |
| Dec | | Died | Pasquale Grassi † | Bishop of Chioggia, Italy |
| 1 Dec | 58.9 | Appointed | Loreto Di Franco (De Franchis) † | Bishop of Minori, Italy |
| 56.9 | Appointed | Giovanni Domenico Spinola † | Archbishop (Personal Title) of Mazara del Vallo, Italy | Cardinal, Bishop |
| 4 Dec | | Born | Mikolaj Popławski † | Novomiasten | Archbishop of Lviv, Ukraine |
| 8 Dec | 43.8 | Ordained Bishop | Franz Wilhelm von Wartenberg † | Bishop of Osnabrück, Germany | Cardinal, Bishop of Regensburg, Germany |
| 14 Dec | 41.0 | Ordained Bishop | Johann Flugi † | Bishop of Chur, Switzerland |
| 15 Dec | | Appointed | Filippo Cansacchi (Consacchi) † | Bishop of Gravina (di Puglia), Italy |
| 57.9 | Appointed | Antonio Tornielli † | Bishop of Novara, Italy |
| 21 Dec | 58.0 | Died | Antonio Trejo de Sande Paniagua, O.F.M. † | Bishop of Cartagena (en España) |