| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Guillaume Aléaume † | | Bishop of Lisieux, France |
| 36.5 | Appointed | Decio Azzolini (Sr.) † | Archpriest of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} | Cardinal, Bishop of Cervia, Italy |
| Died | Lorenzo Belo † | Bishop of Capaccio, Italy |
| Appointed | Cesar Benedetti † | Bishop of Pesaro, Italy |
| Born | Baltasar Borja † | Berlanga | Bishop of Mallorca, Spain |
| Born | Benedetto Bragadin, O.F.M. † | | Archbishop of Corfù, Greece |
| Died | Nicola Canyelles † | Bishop of Bosa, Italy |
| Born | Gaudius Castelli † | Interamnen | Bishop of Montepeloso, Italy |
| Born | Marco Romano (Cristalli), C.R. † | Grottaglie | Bishop of Ruvo (Ruo)(di Puglia), Italy |
| Died | Gian Matteo Castaldo, O.S.B. † | Bishop of Pozzuoli, Italy |
| Died | Francesco Antonio D’Affitto † | Bishop of San Marco (Argentano), Italy |
| 50.0 | Appointed | Miguel de Castro † | Archbishop of Lisboa {Lisbon}, Portugal |
| Born | Francesco Antonio Depace † | Polignano | Bishop of Aquino, Italy |
| Born | Mauro Diego (Marcos) de Tovar y Valle Maldonado, O.S.B. † | Villacastín, Spain | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| Ordained Bishop | Domingo de Ulloa, O.P. † | Bishop of Nicaragua | Bishop of Michoacán, México |
| Resigned | Michael Dornvogel † | Auxiliary Bishop of Augsburg, Germany | Auxiliary Bishop Emeritus |
| Died | Vicente de Fonseca, O.P. † | Archbishop of Goa, India |
| Born | Pace (Pax) Giordano (Jordanus) † | Valle de Conty, Italy | Bishop of Trogir (Traù), Croatia |
| Born | François de Harlay de Champvallon † | Paris | Archbishop Emeritus of Rouen, France |
| Resigned | Denis Hurault † | Bishop-Elect of Orléans, France | Former Bishop-Elect |
| Born | Luis Jiménez, O. de M. † | Cuenca, Spain | Bishop of Ugento, Italy |
| 23.5 | Ordained Bishop | François de Joyeuse † | Archbishop of Narbonne, France | Cardinal, Archbishop of Rouen, France |
| Born | Alvise Lippomano † | Venice | Bishop of Krk (Veglia), Croatia |
| Died | Maurice MacBrien † | Bishop of Emly, Ireland |
| 38.0 | Ordained Priest | Bernard Maciejowski † | Priest | Cardinal, Archbishop of Gniezno, Poland |
| Born | Alessandro Masi † | | Bishop of Valva, Italy |
| Born | Sebastião de Matos de Noronha † | | Archbishop of Braga, Portugal |
| Resigned | Giovanni Francesco Mazza de' Canobbi † | Bishop of Forli, Italy | Bishop Emeritus |
| Born | Cristoforo Memmolo, C.R. † | | Bishop of Ruvo (Ruo)(di Puglia), Italy |
| Died | Cesare Nardo, O.F.M. Conv. † | Bishop of Cariati e Cerenzia, Italy |
| Died | Girolamo Negri † | Bishop Emeritus of Chioggia, Italy |
| Born | Fabio Olivadisi † | Cathacen | Bishop of Catanzaro, Italy |
| Died | Cipriano Pallavicino † | Archbishop of Genova, Italy |
| 49.0 | Resigned | Gerolamo Ragazzoni † | Apostolic Nuncio to France | Bishop of Bergamo, Italy |
| Died | Miguel Rubio, O. Cist. † | Bishop of Ampurias e Civita, Italy |
| Born | Giulio Cesare Sacchetti † | Rome | Cardinal, Prefect of the Congregation of the Council |
| Appointed | Giovanni Sanna † | Bishop of Ampurias e Civita, Italy |
| Died | Giuseppe Sappi † | Archbishop of Manfredonia, Italy |
| Died | Roberto Sassatelli † | Bishop of Pesaro, Italy |
| 48.4 | Appointed | Filippo Sega † | Apostolic Nuncio to Austria | Cardinal, Bishop of Piacenza, Italy |
| Resigned | François Thomé † | Bishop of Saint-Malo, France | Bishop Emeritus |
| Born | Blas Tineo Palacios, O. de M. † | Madrid | Auxiliary Bishop of Granada, Spain |
| Born | Ascanio Turamini † | Senis | Bishop of Grosseto, Italy |
| 35.6 | Died | Maffeo Venier † | Archbishop of Corfù, Greece |
| Born | Giovanni Battista Vercellino † | Vercelli | Bishop of Aosta, Italy |
| Born | Filippo Visconti, O.S.A. † | Milano | Bishop of Catanzaro, Italy |
| Died | Wiktoryn Wierzbicki † | Bishop of Lutsk (Łuck), Ukraine |
| Born | Marco Zen † | | Bishop of Torcello (Turris), Italy |
| 8 Jan | | Appointed | Marcantonio Bizzoni † | Bishop of Foligno, Italy |
| Appointed | Enrico Cini (Siculus), O.F.M. Conv. † | Bishop of Alife, Italy |
| 39.7 | Appointed | Bernardo Sandoval Rojas † | Bishop of Ciudad Rodrigo, Spain | Cardinal, Archbishop of Toledo, Spain |
| Appointed | Giovanni Battista Santorio † | Bishop of Tricarico, Italy |
| 15 Jan | 36.5 | Installed | Decio Azzolini (Sr.) † | Cardinal-Priest of San Matteo in Merulana | Cardinal, Bishop of Cervia, Italy |
| 35.4 | Installed | Enrico Caetani † | Cardinal-Priest of Santa Pudenziana | Cardinal, Chamberlain (Camerlengo) of the Apostolic Chamber |
| 45.0 | Installed | Giovanni Battista Castrucci † | Cardinal-Priest of Santa Maria in Ara Coeli | Cardinal, Archbishop Emeritus of Chieti, Italy |
| 54.6 | Installed | Federico Cornaro (Sr.), O.S.Io.Hieros. † | Cardinal-Priest of Santo Stefano al Monte Celio | Cardinal, Bishop of Padova {Padua}, Italy |
| 54.0 | Installed | Ippolito de’ Rossi † | Cardinal-Deacon of Santa Maria in Portico (Octaviae) | Cardinal, Bishop of Pavia, Italy |
| 44.2 | Installed | Domenico Pinelli (Sr.) † | Cardinal-Priest of San Lorenzo in Panisperna | Cardinal, Bishop Emeritus of Fermo, Italy |
| 19 Jan | | Ordained Bishop | Enrico Cini (Siculus), O.F.M. Conv. † | Bishop of Alife, Italy |
| 24 Jan | | Appointed | Girolamo Righetto (Ragazzinus), C.R.L. † | Bishop of Caorle, Italy |
| 26 Jan | | Ordained Bishop | Marcantonio Bizzoni † | Bishop of Foligno, Italy |
| Feb | | Died | István Radeczy de Zemche † | Bishop of Eger, Hungary |
| 7 Feb | | Born | Marzio Ginetti † | Velletri, Italy | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| Appointed | Sebastián Quintero Ortiz † | Bishop of Gallipoli, Italy | Bishop Emeritus |
| Appointed | Pompeo Rocchi † | Bishop of Cavaillon, France |
| 9 Feb | | Ordained Bishop | Girolamo Righetto (Ragazzinus), C.R.L. † | Bishop of Caorle, Italy |
| 13 Feb | | Died | Gaspar Juan de la Figuera, C.R.S.A. † | Bishop of Lérida, Spain |
| Born | Paris von Lodron † | Castelnuovo | Archbishop of Salzburg, Austria |
| 21 Feb | 75.1 | Died | Michele della Torre † | Cardinal, Bishop of Ceneda, Italy |
| 24 Feb | 45.1 | Ordained Bishop | Antonio Maria Sauli † | Titular Archbishop of Philadelphia in Arabia | Cardinal, Bishop of Ostia (-Velletri), Italy |
| 2 Mar | | Ordained Bishop | Miguel Cercito Bereterra † | Bishop of Barbastro, Spain |
| 5 Mar | | Appointed | Marco Antonio Mocenigo † | Bishop of Ceneda, Italy | Bishop Emeritus |
| 12 Mar | | Ordained Bishop | Marco Antonio Mocenigo † | Bishop of Ceneda, Italy | Bishop Emeritus |
| 17 Mar | 36.2 | Appointed | José (Giuseppe) Esteve Juan (Stefano) † | Bishop of Vieste, Italy | Bishop of Orihuela, Spain |
| 20 Mar | | Born | Juan Velasco Acevedo † | Torre de Mormojón | Bishop of Orense, Spain |
| 23 Mar | | Appointed | Franciscus Cantuccius † | Bishop of Loreto, Italy |
| Appointed | Miler O’Higgens † | Archbishop of Tuam, Ireland |
| 24 Mar | | Appointed | Giovanni Battista Albani † | Titular Patriarch of Alexandria {Alessandria} |
| 27 Mar | | Died | Maximilien Morillon † | Bishop of Tournai {Doornik}, Belgium |
| 30 Mar | 41.6 | Ordained Bishop | Luís de Figueiredo e Lemos † | Bishop of Funchal, Portugal |
| Apr | 36.3 | Ordained Bishop | José (Giuseppe) Esteve Juan (Stefano) † | Bishop of Vieste, Italy | Bishop of Orihuela, Spain |
| 14 Apr | | Appointed | Juan Terés † | Bishop of Tortosa, Spain | Archbishop of Tarragona, Spain |
| 19 Apr | | Died | Marcin Białobrzeski, O. Cist. † | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine |
| Died | Alvaro Hurtado de Mendoza y Sarmiento † | Bishop of Palencia, Spain |
| 20 Apr | 40.0 | Ordained Bishop | Bernardo Sandoval Rojas † | Bishop of Ciudad Rodrigo, Spain | Cardinal, Archbishop of Toledo, Spain |
| 22 Apr | 51.3 | Died | Mikuláš Telegdy † | Bishop of Pécs, Hungary |
| 23 Apr | | Born | Johann Georg Fuchs von Dornheim † | Wiesentheid | Bishop of Bamberg, Germany |
| 25 Apr | | Ordained Bishop | Miler O’Higgens † | Archbishop of Tuam, Ireland |
| 4 May | 44.0 | Succeeded | Georg von Kuenburg † | Archbishop of Salzburg, Austria |
| 71.3 | Died | Johann Jakob von Kuen-Belasy † | Archbishop of Salzburg, Austria |
| 11 May | | Born | Angelo Giori † | Capodacqua, Italy | Cardinal, Cardinal-Priest of Santi Quirico e Giulitta |
| 21 May | | Appointed | Nuno de Noronha † | Bishop of Viseu, Portugal | Bishop of Guarda, Portugal |
| 31 May | 69.3 | Died | Antonio Agustín † | Archbishop of Tarragona, Spain |
| 7 Jun | | Born | Bernard Daffis † | Bordeaux | Bishop of Lombez, France |
| 9 Jun | 37.8 | Died | Filippo Boncompagni † | Cardinal, Cardinal-Priest of San Sisto |
| 16 Jun | | Appointed | Juan Martínez de Villatoriel † | Bishop of Lérida, Spain |
| Appointed | Lelio Morelli † | Bishop of Capaccio, Italy |
| 23 Jun | | Appointed | Clemente Bontodasio, O.F.M. Conv. † | Bishop of Nicastro, Italy |
| 34.4 | Appointed | Sebastian Breuning † | Auxiliary Bishop of Augsburg, Germany |
| 34.4 | Appointed | Sebastian Breuning † | Titular Bishop of Adramyttium | Auxiliary Bishop of Augsburg, Germany |
| 28 Jun | | Died | Antonio Rodríguez de Pazos y Figueroa † | Bishop of Córdoba, Spain |