| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Andrea Matteo Acquaviva d’Aragona † | Archbishop of Cosenza, Italy |
| Born | Giovanni Battista de Aquena † | Turritan | Bishop of Bosa, Italy |
| Born | Arcangelo Baldini, O.P. † | | Bishop of Gravina (di Puglia), Italy |
| Died | Leonardo Bonaccorsi † | Bishop of Bisceglie, Italy |
| Born | Carlo Bovi † | | Bishop of Sarsina, Italy |
| Born | Scipione Caffarelli-Borghese † | Rome | Cardinal, Bishop of Sabina, Italy |
| Died | Feliciano Capitone, O.S.M. † | Archbishop of Avignon, France |
| Born | Paolo Ciera, O.S.A. † | Venice | Bishop Emeritus of Vieste, Italy |
| Born | Pompeo Cornazzano, O. Cist. † | Papien | Bishop of Parma, Italy |
| Born | Cosimo de’ Bardi † | | Archbishop of Firenze {Florence}, Italy |
| 32.8 | Ordained Bishop | Pierre de Villars (II) † | Bishop of Mirepoix, France | Archbishop Emeritus of Vienne, France |
| Appointed | Pierre de Villars † | Archbishop of Vienne, France |
| 70.0 | Died | Antonio Elio † | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| Born | Giovanni Battista Ferrero, O.P. † | Pinerolo | Archbishop of Torino {Turin}, Italy |
| Resigned | Giovanni Ambrosio Fieschi † | Bishop of Savona, Italy | Bishop Emeritus |
| Born | Antonio Maria Franceschini † | Roma | Bishop of Amelia, Italy |
| Born | Theodorus Georgi, O.S.B. † | Venice | Bishop of Arbe (Rab), Croatia |
| Appointed | Jean-Godefroi Ginod † | Bishop of Belley, France |
| Died | Aurelio Griani, O.F.M. † | Bishop of Lettere (-Gragnano), Italy |
| Born | Giovanni Battista Lancellotti † | | Bishop of Nola, Italy |
| Died | Sebastiano Maffo † | Bishop of Cariati e Cerenzia, Italy |
| Born | Pedro de Mata y Haro, C.R. † | Napoli | Bishop of Capaccio, Italy |
| Died | Giacomo Mignanelii † | Bishop of Grosseto, Italy |
| Born | Nicolaus Righi † | | Bishop of Tinos, Greece |
| Died | Jorge de Santa Luzia, O.P. † | Bishop of Malacca, Singapore |
| Appointed | Roberto Sassatelli † | Bishop of Pesaro, Italy |
| Resigned | Scipione Santacroce † | Bishop of Cervia, Italy | Bishop Emeritus |
| Born | Pierre Antoine Triest † | Beveren-Waas | Bishop of Gent {Ghent, Gand}, Belgium |
| 29.0 | Ordained Priest | Fernando Trexo y Senabria, O.F.M. † | Priest of Order of Friars Minor | Bishop of Córdoba (Tucumán), Argentina |
| Born | Franciscus Venturi † | Florence | Bishop Emeritus of San Severo, Italy |
| 34.0 | Appointed | Jakob Christoph Blarer von Wartensee † | Bishop of Basel, Switzerland |
| 7 Jan | | Born | Julián de Cortázar † | Durango, Spain | Archbishop of Santafé en Nueva Granada, Colombia |
| 9 Jan | | Born | Jerónimo Domín Funes, O. Carm. † | Calatayud, Spain | Bishop of Gaeta, Italy |
| 13 Jan | | Died | Benedetto Oliva † | Bishop of Trevico, Italy |
| 15 Jan | 48.0 | Ordained Bishop | Marquard von Berg † | Bishop of Augsburg, Germany |
| 16 Jan | 39.0 | Appointed | Melchior Giedroyc † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 23 Jan | | Appointed | Richard Brady, O.F.M. † | Bishop of Ardagh (and Clonmacnois), Ireland | Bishop of Kilmore, Ireland |
| 25 Jan | | Died | Tommaso Orsini † | Bishop of Foligno, Italy |
| 30 Jan | | Appointed | Ippolito Bosco † | Bishop of Foligno, Italy |
| Appointed | Matteo Guerra † | Bishop of San Marco (Argentano), Italy |
| 6 Feb | | Appointed | Antonio Balducci, O.P. † | Bishop of Trevico, Italy |
| 34.1 | Appointed | Lorenzo Vittori † | Archbishop of Candia, Greece |
| 13 Feb | | Died | Ludovico Antinori † | Bishop of Pisa, Italy |
| 15 Feb | | Appointed | Francisco Soto Salazar † | Bishop of Salamanca, Spain |
| 27 Feb | | Appointed | Pio Loterio, O.S.B. † | Bishop of Fondi (Fundi), Italy |
| 4 Mar | | Ordained Bishop | Giovanni Paolo Marincola † | Bishop of Teano, Italy | Bishop Emeritus |
| 14 Mar | | Born | Éric de Lorraine † | Nancy | Bishop Emeritus of Verdun, France |
| 19 Mar | 56.2 | Died | Gaspar de Faria † | Bishop of Angra, Portugal |
| 28 Mar | | Appointed | Alexandre Canigiani † | Archbishop of Aix, France |
| Appointed | Manuel de Mercado Aldrete, O.S.H. † | Bishop of Panamá |
| 43.1 | Resigned | Giovanni Francesco Gàmbara † | Bishop of Viterbo e Tuscania, Italy | Cardinal, Cardinal-Bishop of Palestrina |
| Appointed | Carlo Montigli † | Archbishop (Personal Title) of Viterbo e Tuscania, Italy | Bishop |
| Died | Juan Orozco de Arce † | Bishop of Catania, Italy |
| Appointed | Giulio Rossino † | Archbishop of Amalfi, Italy |
| 57.2 | Appointed | Diego de Salamanca, O.S.A. † | Bishop of Puerto Rico (Porto Rico) | Bishop Emeritus |
| 2 Apr | 75.3 | Died | Pedro Guerrero Logroño (Mendoza) † | Archbishop of Granada, Spain |
| 6 Apr | | Appointed | Tommaso de Bonsi † | Bishop of Béziers, France | Bishop Emeritus |
| 10 Apr | | Died | Jean de Balaguier † | Bishop of Cahors, France |
| 11 Apr | | Appointed | Gómez Zapata † | Bishop of Cartagena (en España) | Bishop of Cuenca, Spain |
| 22 Apr | 39.3 | Ordained Bishop | Melchior Giedroyc † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 23 Apr | 57.3 | Died | Francisco Gómez de Mendiola y Solórzano † | Bishop of Guadalajara, Jalisco, México |
| 2 May | 73.3 | Died | Bartolomé de Carranza y Miranda, O.P. † | Archbishop of Toledo, Spain |
| 4 May | | Appointed | Johann Mezon von Telz † | Bishop of Olomouc (Olmütz), Czech Republic |
| 9 May | | Appointed | Cesare Ferrero † | Bishop of Savona, Italy | Bishop of Ivrea, Italy |
| 11 May | 66.4 | Died | Cornelius Jansen † | Bishop of Gent {Ghent, Gand}, Belgium |
| 20 May | 61.7 | Died | Maurizio Pietra † | Bishop of Vigevano, Italy |
| 27 May | | Died | Giulio Simonetta † | Bishop of Pesaro, Italy |
| 4 Jun | | Appointed | Jan van Strijen † | Bishop of Middelburg, Netherlands |
| 7 Jun | | Died | Johann Deublinger † | Auxiliary Bishop of Regensburg, Germany |
| 30 Jun | 69.9 | Died | Franciscus Sonnius (Van de Velde) † | Bishop of Antwerpen {Antwerp, Anvers}, Belgium |
| 4 Jul | | Appointed | Juan Dimas Loris † | Bishop of Barcelona, Spain |
| Appointed | Bl. Patrick O’Healy, O.F.M. † | Bishop of Mayo, Ireland |
| 17 Jul | | Died | Antonio Ruíz de Morales y Molina, O.S. † | Bishop of Tlaxcala, México |
| 18 Jul | | Appointed | Ottavio Santacroce † | Bishop of Cervia, Italy |
| 30 Jul | | Appointed | Alfonso Herrera, O.S.A. † | Bishop of Gallipoli, Italy | Bishop of Ariano, Italy |
| Died | Antonio Scarampi † | Bishop of Lodi, Italy |
| 6 Aug | | Appointed | Gerolamo Federici † | Bishop of Lodi, Italy |
| 15 Aug | | Installed | Antônio Barreiros, O. Cist. † | Bishop of São Salvador da Bahia, Brazil |
| Died | Gaspar de Leão Pereira † | Archbishop of Goa, India |
| Ordained Bishop | Johann Mezon von Telz † | Bishop of Olomouc (Olmütz), Czech Republic |
| 22 Aug | | Appointed | Claudio Borghese † | Bishop of Grosseto, Italy |
| Appointed | Malachy O’Moloney † | Bishop of Kilmacduagh, Ireland |
| Appointed | Cornelius Ryan (O’Mulrian), O.F.M. † | Bishop of Killaloe, Ireland |
| Appointed | Giovanni Battista Soriani, O. Carm. † | Bishop of Bisceglie, Italy |
| 2 Sep | | Ordained Bishop | Giovanni Battista Soriani, O. Carm. † | Bishop of Bisceglie, Italy |
| 4 Sep | | Died | Romolo Archinto † | Bishop of Novara, Italy |
| 9 Sep | | Born | Philipp Wilhelm von Bayern † | Münich | Cardinal, Bishop-Elect of Regensburg, Germany |
| 11 Sep | | Died | Mario Carafa † | Archbishop of Napoli {Naples}, Italy |
| 14 Sep | 71.7 | Died | Juan Quiñones Guzmán † | Bishop of Calahorra y La Calzada, Spain |
| 19 Sep | 65.7 | Appointed | Bl. Paul Burali d’Arezzo, C.R. † | Cardinal, Archbishop of Napoli {Naples}, Italy |
| Appointed | Giovanni Bernardino Grandopoli † | Bishop of Lettere (-Gragnano), Italy |
| 39.7 | Appointed | Gerolamo Ragazzoni † | Bishop of Novara, Italy | Bishop of Bergamo, Italy |
| 22 Sep | | Born | Gregorio de Alarcón, O.A.D. † | Castillo de Garcimuñoz | Bishop of Santiago de Cuba |
| 2 Oct | 62.8 | Died | Francisco Delgado López † | Bishop of Jaén, Spain |
| 24 Oct | | Appointed | Giovanni Battista Ansaldo † | Bishop of Cariati e Cerenzia, Italy |
| Appointed | Alfonso de Lorca † | Archbishop of Sassari, Italy |
| 26 Oct | | Appointed | Geoffrey de La Marthonie † | Bishop of Amiens, France |
| 4 Nov | | Ordained Bishop | Giovanni Battista Ansaldo † | Bishop of Cariati e Cerenzia, Italy |
| Ordained Bishop | Giovanni Bernardino Grandopoli † | Bishop of Lettere (-Gragnano), Italy |
| 12 Nov | 57.3 | Appointed | Giovanni Antonio Facchinetti de Nuce † | Patriarch of Jerusalem {Gerusalemme}, Palestine | Pope (Roma {Rome}, Italy) |
| Appointed | Tommaso Gigli † | Bishop of Piacenza, Italy |
| 19 Nov | 18.4 | Elevated to Cardinal | Andreas von Austria (Österreich) † | Cardinal, Bishop of Konstanz {Constance}, Germany |
| 3 Dec | | Appointed | Giovanni Ingenerio † | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia |
| 4 Dec | | Died | Antonio Vialardi, O.S.B. † | Archbishop of Bourges, France |
| 10 Dec | | Appointed | Jan Sieniński † | Archbishop of Lviv, Ukraine |
| Appointed | Scipione de Tolfa † | Archbishop of Trani, Italy | Archbishop of Acerenza e Matera, Italy |
| 17 Dec | 59.8 | Appointed | Antonio Agustín † | Archbishop of Tarragona, Spain |
| 22 Dec | 60.0 | Died | Otto von Schaumberg † | Bishop-Elect of Hildesheim, Germany |
| 28 Dec | | Died | Benedetto Erba, O.P. † | Bishop of Casale Monferrato, Italy |