| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 24.0 | Ordained Priest | Franciscus Aguado † | Priest | Bishop of Astorga, Spain |
| 52.0 | Died | Cipriano Arcón (Azcon) † | Bishop of Alghero, Italy |
| Born | Martín Ascargorta † | Vergara | Archbishop of Granada, Spain |
| Died | Pompeo Balbani † | Bishop of Castro [del Lazio], Italy |
| Born | Daniel-Louis de Baradat † | Champagne | Bishop of Vabres, France |
| Born | Stanisław Bedliński † | | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| Born | Carlo Berlingeri † | Cotrone | Archbishop of Santa Severina, Italy |
| 18.2 | Professed | Jean Antoine Blavier, O.F.M. Conv. † | Member of Order of Friars Minor Conventual | Auxiliary Bishop Emeritus of Liège, Belgium |
| Died | Lorenzo Campeggi † | Bishop of Senigallia, Italy |
| 74.8 | Died | Domingo Cano de Haro, O.P. † | Bishop of Cádiz, Spain |
| Born | Simplicio Caravita, O.S.B. † | Napoli | Archbishop of Amalfi, Italy |
| Born | Leonardo Cassiani † | Terra Nova | Bishop of Teramo, Italy |
| Born | Mario Emmanuelle Durazzo † | Ianuen | Bishop of Accia and Mariana, France |
| Appointed | Kasper Działyński † | Bishop of Chelmno (Culma, Kulm), Poland |
| Appointed | Pedro Homem Albernaz † | Prelate of São Sebastião do Rio de Janeiro, Brazil |
| Born | Andras József Illyés † | Csikszentgyörgy | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
| Appointed | Arthur de Lionne † | Bishop of Gap, France |
| 66.0 | Died | Stanisław Łoza † | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| Died | Giovanni Thomas Marnavich † | Bishop of Bosnia, Croatia |
| Born | Fernando Manuel de Mejía † | Corduben | Archbishop of Burgos, Spain |
| Died | Vincenzo Meligne † | Bishop of Ostuni, Italy |
| 60.0 | Died | Raymond de Montaigne † | Bishop of Bayonne, France |
| Died | Silvester Morosini † | Bishop of Treviso, Italy |
| 74.0 | Died | Giovanni Maria Olmo † | Bishop of Bosa, Italy |
| Born | Jan Kazimierz Opaliński, O. Cist. † | | Bishop of Chelmno (Culma, Kulm), Poland |
| 64.7 | Appointed | Giovanni Battista Pamphilj † | Prefect of the Congregation of the Council | Pope (Roma {Rome}, Italy) |
| Appointed | Nicolas Pavillon † | Bishop of Alet, France |
| 33.0 | Ordained Priest | Sebastiano Pisani † | Priest | Bishop Emeritus of Verona, Italy |
| Born | Felice Rospigliosi † | Pistoia, Italy | Cardinal, Cardinal-Deacon of Sant’Agata de’ Goti |
| 39.0 | Ordained Priest | Martin Saudrius von Sternfeld † | Priest of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany | Prefect Emeritus |
| Born | John Baptist Sleyne † | Midleton | Bishop of Cork, Ireland |
| 41.0 | Resigned | Antonio Santacroce † | Archbishop of Urbino, Italy | Cardinal, Archbishop Emeritus |
| Died | Vincenzo Giovanni Spínola, O.S.A. † | Bishop of Brugnato, Italy |
| Born | Henri-Félix de Tassy † | Paris | Bishop of Chalons-sur-Saône, France |
| 63.4 | Died | Fernando Valdés Llano † | Archbishop of Granada, Spain |
| 74.0 | Died | Francisco de Zamudio y Avendaño, O.S.A. † | Bishop of Nueva Caceres, Philippines |
| Jan | 72.0 | Resigned | Ottaviano Garzadori † | Archbishop of Zadar (Zara), Croatia | Archbishop Emeritus |
| 10 Jan | | Appointed | Charles-François Abra de Raconis † | Bishop of Lavaur, France |
| 55.0 | Appointed | Juan Queipo de Llano Flores † | Bishop of Pamplona, Spain | Bishop of Jaén, Spain |
| 23 Jan | 64.1 | Ordained Bishop | Gonzalo Sánchez de Somoza Quiroga † | Bishop of Mondoñedo, Spain |
| 27 Jan | 68.1 | Died | Fabrizio Verospi † | Cardinal, Prefect of the Congregation of the Council |
| 28 Jan | | Born | Ferdinand Schröffel † | Olomouc | Auxiliary Bishop of Olomouc (Olmütz), Czech Republic |
| 30 Jan | 24.5 | Ordained Priest | Adam Lorenz von Törring-Stein † | Priest of Salzburg, Austria | Bishop of Regensburg, Germany |
| Feb | | Died | Germanicus Mantica † | Bishop of Adria, Italy |
| Born | Philips-Erard van der Noot † | Uccle | Bishop of Gent {Ghent, Gand}, Belgium |
| 7 Feb | | Appointed | Dinis de Melo e Castro † | Bishop of Guarda, Portugal |
| 56.7 | Appointed | Antonio Ricciulli † | Bishop of Caserta, Italy | Archbishop of Cosenza, Italy |
| 63.3 | Appointed | Diego Rueda Rico † | Bishop of Tui, Spain |
| 8 Feb | 52.5 | Died | Johann Anton Tritt von Wilderen † | Auxiliary Bishop of Konstanz {Constance}, Germany |
| 9 Feb | | Appointed | Girolamo Figini-Oddi † | Bishop of Teramo, Italy |
| 12 Feb | | Born | Giuseppe Crispino † | Roccaguglielma | Bishop of Amelia, Italy |
| 16 Feb | | Born | Giovanni Giacomo Cavallerini † | Rome, Italy | Cardinal, Cardinal-Priest of San Bartolomeo all’Isola |
| 24 Feb | | Died | Jacques van den Borgh † | Bishop of Roermond, Netherlands |
| 28 Feb | 43.2 | Appointed | Giorgio (Gregorio) Bolognetti † | Bishop of Rieti, Italy | Bishop Emeritus |
| 51.2 | Appointed | Patrizio Donati † | Bishop of Minori, Italy | Bishop Emeritus |
| 27.6 | Appointed | François Foucquet † | Bishop of Bayonne, France | Archbishop of Narbonne, France |
| 61.2 | Resigned | Giovanni Francesco Guidi di Bagno † | Bishop of Rieti, Italy | Cardinal, Bishop Emeritus |
| 32.2 | Confirmed | Emmeric-Marc de La Ferté † | Bishop of Le Mans, France |
| 47.2 | Appointed | Antonio Nusco (Nuseo) † | Bishop of Alghero, Italy |
| Mar | | Born | Bonaventura Martinelli † | Vallis Narci | Bishop of Valva, Italy |
| 4 Mar | | Born | Henri de Barillon † | Paris | Bishop of Luçon, France |
| 6 Mar | | Died | Scipione Spina † | Bishop of Lecce, Italy |
| 9 Mar | | Born | Domenico Gallesi † | Finale | Bishop of Ruvo (Ruo)(di Puglia), Italy |
| 12 Mar | 87.7 | Died | Domenico Ginnasi † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 13 Mar | 51.2 | Ordained Bishop | Patrizio Donati † | Bishop of Minori, Italy | Bishop Emeritus |
| Ordained Bishop | Girolamo Figini-Oddi † | Bishop of Teramo, Italy |
| 69.9 | Died | Servaas de Quinckere † | Bishop of Brugge {Bruges}, Belgium |
| 22 Mar | | Appointed | Feliciano de la Vega Padilla † | Archbishop of México, Federal District |
| 25 Mar | 27.7 | Ordained Bishop | François Foucquet † | Bishop of Bayonne, France | Archbishop of Narbonne, France |
| 28 Mar | 61.5 | Appointed | Guido Bentivoglio d’Aragona † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Cardinal-Bishop of Palestrina |
| 35.2 | Appointed | Bartolomeo Cresconi † | Bishop of Umbriatico (Umbriaticum), Italy | Bishop of Caserta, Italy |
| Appointed | Giusto (Juste) Guérin, B. † | Bishop of Genève {Geneva}, Switzerland |
| 70.2 | Appointed | Marcello Lante della Rovere † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 54.2 | Appointed | Carlo Emmanuele Pio di Savoia † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 54.5 | Appointed | Giulio Roma † | Cardinal-Priest of Santa Prassede | Cardinal, Bishop of Tivoli, Italy |
| 65.2 | Appointed | Giulio Savelli † | Cardinal, Cardinal-Bishop of Frascati |
| 1 Apr | 56.7 | Died | Anton Wolfradt † | Bishop of Wien, Austria |
| 3 Apr | | Appointed | Esteban de Esmir † | Coadjutor Bishop of Huesca, Spain | Bishop |
| Appointed | Esteban de Esmir † | Titular Bishop of Castoria | Bishop of Huesca, Spain |
| 6 Apr | 75.4 | Died | Berlinghiero Gessi † | Cardinal, Bishop Emeritus of Rimini, Italy |
| 8 Apr | 69.3 | Died | Alfonso de Requeséns Fenollet, O.F.M. † | Bishop of Barbastro, Spain |
| 9 Apr | 26.8 | Ordained Priest | Giovanni Battista Falvo † | Priest | Bishop Emeritus of Marsico Nuovo, Italy |
| 10 Apr | 35.3 | Ordained Bishop | Bartolomeo Cresconi † | Bishop of Umbriatico (Umbriaticum), Italy | Bishop of Caserta, Italy |
| 55.3 | Ordained Bishop | Juan Queipo de Llano Flores † | Bishop of Pamplona, Spain | Bishop of Jaén, Spain |
| 11 Apr | 50.3 | Appointed | Martino Alfieri † | Archbishop of Cosenza, Italy |
| 58.3 | Appointed | Ippolito Andreassi, O.S.B. † | Bishop of Terni, Italy |
| 31.3 | Appointed | Juan Coello Ribera y Sandoval † | Bishop of Zamora, Spain |
| Appointed | Jacques Desclaux † | Bishop of Acqs (Dax), France |
| 50.0 | Appointed | Francisco Diego Alarcón y Covarrubias † | Bishop of Ciudad Rodrigo, Spain | Bishop of Córdoba, Spain |
| 39.5 | Appointed | Girolamo Farnese † | Titular Archbishop of Patrae (Veters) | Cardinal, Cardinal-Priest of Sant’Agnese fuori le mura |
| Appointed | Pietro Paolo Medici † | Bishop of Alife, Italy |
| 38.3 | Appointed | Giovanni Tommaso Perrone † | Bishop of Nicastro, Italy |
| 63.9 | Confirmed | Diego Salcedo Benacos † | Bishop of Astorga, Spain |
| 15 Apr | | Born | Leandro Colloredo, C.O. † | Colloredo di Montalbano, Italy | Cardinal, Cardinal-Priest of Santa Maria in Trastevere |
| 16 Apr | 41.3 | Selected | Michael Chumer (Chumberg), O.F.M. † | Auxiliary Bishop of Ljubljana, Slovenia |
| 25 Apr | | Ordained Bishop | Pietro Paolo Medici † | Bishop of Alife, Italy |
| 38.3 | Ordained Bishop | Giovanni Tommaso Perrone † | Bishop of Nicastro, Italy |
| 26 Apr | 39.6 | Ordained Bishop | Girolamo Farnese † | Titular Archbishop of Patrae (Veters) | Cardinal, Cardinal-Priest of Sant’Agnese fuori le mura |
| 27 Apr | 58.3 | Ordained Bishop | Ippolito Andreassi, O.S.B. † | Bishop of Terni, Italy |
| 2 May | 61.3 | Appointed | Francesco d’Elia e Rossi † | Bishop of Siracusa, Italy |
| 32.3 | Appointed | Carlo Diotallevi † | Bishop of Strongoli, Italy |
| Appointed | Bartolomeo Gessi † | Bishop of Vulturara e Montecorvino, Italy |
| 41.3 | Appointed | Orazio Monaldi † | Bishop of Gubbio, Italy | Bishop of Perugia, Italy |
| 69.3 | Appointed | Alfonso de Requeséns Fenollet, O.F.M. † | Bishop of Vic, Spain | Bishop of Barbastro, Spain |
| 58.3 | Appointed | Giuliano Viviani † | Bishop of Isola, Italy |
| 4 May | 43.3 | Selected | Nicolaas de Haudion † | Bishop of Brugge {Bruges}, Belgium |
| 6 May | | Born | Maurizio Bertone, C.R.S. † | Chieri | Bishop of Fossano, Italy |
| 8 May | 61.4 | Ordained Bishop | Francesco d’Elia e Rossi † | Bishop of Siracusa, Italy |
| 15 May | 41.4 | Ordained Bishop | Orazio Monaldi † | Bishop of Gubbio, Italy | Bishop of Perugia, Italy |
| 16 May | | Appointed | Camillus Adriani † | Auxiliary Bishop of Ostia (-Velletri), Italy |
| Appointed | Camillus Adriani † | Titular Bishop of Halmiros | Auxiliary Bishop of Ostia (-Velletri), Italy |
| 42.2 | Installed | Juan Alonso y Ocón † | Bishop of Yucatán (Mérida), México | Archbishop of La Plata o Charcas, Bolivia |
| 20 May | | Born | Francesco Girgenti, C.O. † | Palermo | Bishop of Patti, Italy |
| 22 May | | Ordained Bishop | Camillus Adriani † | Titular Bishop of Halmiros | Auxiliary Bishop of Ostia (-Velletri), Italy |
| 32.4 | Ordained Bishop | Carlo Diotallevi † | Bishop of Strongoli, Italy |
| Died | Louis de Salignac de La Mothe-Fénelon † | Bishop of Sarlat, France |
| 27 May | | Born | Alessandro Ciceri, S.J. † | Como, Italy | Bishop of Nanking [Nanjing], China |
| 28 May | 16.3 | Professed | Salvatore Scaglione, O. Carm. † | Member of Order of Our Lady of Mt. Carmel | Bishop of Castellammare di Stabia, Italy |
| 30 May | 67.4 | Appointed | Alonso de Franco y Luna † | Bishop of La Paz, Bolivia |
| 43.7 | Appointed | Luigi Pappacoda † | Bishop of Lecce, Italy |
| 47.1 | Appointed | Marcos Ramírez de Prado y Ovando, O.F.M. † | Bishop of Michoacán, México | Archbishop of México, Federal District |
| 57.4 | Appointed | Diego Serrano Sotomayor, O. de M. † | Bishop of Segorbe, Spain | Bishop of Guadix, Spain |
| 31 May | | Died | Fernando Núñez Sagredo, O.SS.T. † | Bishop of Nicaragua |
| 3 Jun | 41.7 | Selected | Philipp Friedrich von Breuner † | Bishop of Wien, Austria |
| 11 Jun | 40.3 | Appointed | Fabio Chigi † | Apostolic Nuncio to Germany | Pope (Roma {Rome}, Italy) |
| 19 Jun | | Ordained Bishop | Esteban de Esmir † | Titular Bishop of Castoria | Bishop of Huesca, Spain |
| 20 Jun | | Born | Giuseppe Antonio Bertodano † | Bugellae | Bishop of Vercelli, Italy |
| 25 Jun | | Ordained Bishop | Giusto (Juste) Guérin, B. † | Bishop of Genève {Geneva}, Switzerland |
| 26 Jun | | Selected | Jean de Lingendes † | Bishop of Sarlat, France | Bishop of Mâcon, France |
| 27 Jun | 44.8 | Appointed | Bartolomé de Benavente y Benavides † | Bishop of Antequera, Oaxaca, México |
| Appointed | Vicente Agustín Clavería † | Bishop of Bosa, Italy | Bishop of Alghero, Italy |
| 35.3 | Appointed | Girolamo Colonna † | Cardinal-Deacon of Santa Maria in Cosmedin | Cardinal, Archbishop Emeritus of Bologna, Italy |