| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 76.0 | Resigned | Léon Bacoué, O.F.M. † | Bishop of Glandèves, France | Bishop Emeritus |
| Born | Jean-Louis Berton des Balbes de Crillon † | Cavallicen | Archbishop of Narbonne, France |
| Died | Cristóbal Bernardo de Quiros † | Bishop of Popayán, Colombia |
| Born | Claude Bouhier † | Dijon | Bishop of Dijon, France |
| Born | Henri-Ignace de Brancas † | Pernes | Bishop of Lisieux, France |
| 49.0 | Died | Francisco Antonio Caballero † | Bishop of Segovia, Spain |
| Born | Louis-Jacques Chapt de Rastignac † | Corgnac | Archbishop of Tours, France |
| 50.0 | Resigned | Paul-Philippe de Chaumont † | Bishop of Acqs (Dax), France | Bishop Emeritus |
| Born | François-Honoré-Lancelot de Maniban de Casaubon † | Toulouse | Bishop of Bordeaux, France |
| 48.0 | Ordained Bishop | José Mora † | Titular Bishop of Maronea | Auxiliary Bishop of Tarragona, Spain |
| Born | Pedro Morcillo Rubio de Suñón † | Villarrobledo, Spain | Bishop of Cuzco, Peru |
| Born | François-Joseph Robuste † | Engolismen | Auxiliary Bishop of Reims, France |
| 45.0 | Appointed | Felice Rospigliosi † | Archpriest of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} | Cardinal, Cardinal-Deacon of S. Agata de’ Goti |
| 54.0 | Appointed | Claude de Saint-Georges † | Bishop of Clermont, France | Archbishop of Lyon, France |
| 30.1 | Ordained Priest | Giovanni Battista Tolomei, S.J. † | Priest of Society of Jesus | Cardinal, Cardinal-Priest of S. Stefano al Monte Celio |
| Born | Eugénio Trigueiros, O.S.A. † | Lisbon, Portugal | Archbishop of Goa, India |
| 56.0 | Ordained Bishop | Luke Wadding † | Bishop of Ferns, Ireland |
| Jan | 62.0 | Installed | Juan de Rojas y Asúa, O. de M. † | Bishop of León en Nicaragua |
| Born | Guillaume-Philippe de Herzelles † | Castello di Nivell | Bishop of Antwerpen {Antwerp, Anvers}, Belgium |
| 5 Jan | | Born | Giulio Sabbatini, Sch. P. † | Fanano | Bishop of Modena, Italy |
| 6 Jan | 46.0 | Died | Jean-Baptiste d’Estampes de Valançay † | Bishop of Marseille, France |
| 10 Jan | 46.0 | Appointed | Francesco Maria Moles, C.R. † | Bishop of Nola, Italy | Bishop Emeritus |
| 60.3 | Appointed | Annibale de Petropaolo † | Bishop of Castellammare di Stabia, Italy |
| 44.4 | Appointed | Sperello Sperelli † | Bishop of Terni, Italy | Cardinal, Bishop Emeritus |
| 15 Jan | | Born | Vincenzo Maria d’Aragona, O.P. † | Alexanen | Archbishop of Cosenza, Italy |
| 16 Jan | 46.0 | Ordained Bishop | Francesco Maria Moles, C.R. † | Bishop of Nola, Italy | Bishop Emeritus |
| 60.3 | Ordained Bishop | Annibale de Petropaolo † | Bishop of Castellammare di Stabia, Italy |
| 18 Jan | | Died | Bernat Cotoner † | Bishop of Mallorca, Spain |
| Installed | Francisco Núñez de la Vega, O.P. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 24 Jan | 61.8 | Died | Girolamo Boncompagni † | Cardinal, Archbishop of Bologna, Italy |
| 31 Jan | | Died | Manoel de Sousa e Menezes † | Archbishop of Goa, India |
| Feb | | Born | José de Llupiá y Roger, O.S.B. † | Barchinonen | Bishop of León, Spain |
| Born | Lazzaro Sangiovanni † | Ruggiano | Bishop of Bitetto, France |
| 2 Feb | 65.1 | Died | Andrea Bonito, C.O. † | Bishop of Capaccio, Italy |
| 56.1 | Died | Giacomo Rospigliosi † | Cardinal, Cardinal-Priest of Ss. Giovanni e Paolo |
| 6 Feb | 54.0 | Ordained Priest | Horatius Ondedei † | Priest | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 23 Feb | | Born | Gregorio Galindo † | Josa | Bishop of Lérida, Spain |
| 24 Feb | 60.4 | Selected | Luis de Ayllon † | Bishop of Ceuta, Spain |
| 82.1 | Died | Henri de La Mothe-Houdancourt † | Archbishop of Auch, France |
| 26 Feb | 24.1 | Ordained Priest | Blasius de Vicariis † | Priest | Titular Bishop of Capharnaum |
| Mar | 59.2 | Died | Johannes Brassert † | Auxiliary Bishop of Speyer, Germany |
| Born | José Henrique Correira da Gama † | Ulixbonen | Titular Bishop of Constantia in Arabia |
| 67.2 | Died | Niccolò Oliva, O.S.A. † | Bishop of Cortona, Italy |
| 4 Mar | 82.2 | Died | Jaume Mas † | Bishop of Vic, Spain |
| Born | Sante Veronese † | Venice | Cardinal, Bishop of Padova {Padua}, Italy |
| 5 Mar | | Born | Paolo Collia, O.M. † | Zaccanopoli | Bishop of Nicotera, Italy |
| 8 Mar | 24.5 | Ordained Priest | Anton Ignaz Müntzer † | Priest of Wrocław (Breslau), Poland | Auxiliary Bishop |
| 17 Mar | | Born | Johann Joseph Anton Blatter † | Visp | Bishop of Sion {Sitten}, Switzerland |
| 18 Mar | 24.3 | Ordained Priest | Matthieu Petit-Didier, O.S.B. † | Priest of Order of Saint Benedict | Titular Bishop of Macri |
| 20 Mar | 69.2 | Died | Gaetano Garimberti, C.R. † | Bishop of Borgo San Donnino, Italy |
| 21 Mar | 51.4 | Died | Giuseppe di Giacomo † | Bishop of Bovino, Italy |
| Apr | | Born | Federigo Muschi † | Saccovescio | Bishop of Segni, Italy |
| 8 Apr | | Died | Payo Enríquez de Rivera Manrique, O.S.A. † | Archbishop Emeritus of México, Federal District |
| 9 Apr | 24.4 | Ordained Priest | Giovanni Antonio Chiaiese † | Priest | Bishop of Mottola (Motula), Italy |
| 10 Apr | 47.3 | Confirmed | Domenico Cugia † | Bishop of Ales e Terralba, Italy |
| 54.2 | Appointed | Horatius Ondedei † | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 65.6 | Appointed | Tommaso Ruffo, O.P. † | Archbishop of Bari (-Canosa), Italy |
| 15 Apr | 15.1 | Professed | Antonio Pacecco, O.F.M. † | Member of Order of Friars Minor | Bishop of Bisceglie, Italy |
| 16 Apr | 54.2 | Ordained Bishop | Horatius Ondedei † | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 37.3 | Ordained Bishop | João de Sousa † | Bishop of Porto, Portugal | Archbishop of Lisboa {Lisbon}, Portugal |
| 19 Apr | 64.7 | Selected | Luigi de Filippi, O.P. † | Bishop of Potenza, Italy |
| 24 Apr | 50.3 | Appointed | Ferdinando de Aguinar y Saavedra † | Archbishop of Otranto, Italy |
| 54.1 | Appointed | Giovanni Battista de Belli † | Bishop of Telese o Cerreto Sannita, Italy |
| 46.3 | Appointed | Fulvio Cribelli (Crivelli) † | Bishop of Tricarico, Italy |
| 40.3 | Appointed | Francesco Onofrio Hodierna † | Bishop of Bitetto, France | Bishop Emeritus of Valva, Italy |
| 53.3 | Appointed | João de Melo † | Bishop of Coimbra, Portugal |
| 56.1 | Appointed | Domenico Minio † | Bishop of Caorle, Italy |
| 55.3 | Appointed | Giovanni Battista Pallotta † | Bishop of Foligno, Italy |
| 60.3 | Appointed | Gregorius Jacobus Pastrana † | Bishop of Santa Marta, Colombia |
| 37.1 | Appointed | Antonio Polcenigo † | Bishop of Feltre, Italy |
| 57.3 | Appointed | Juan de Porras y Atienza † | Bishop of Coria, Spain |
| 51.1 | Appointed | Fabrizio Susanna † | Bishop of Montepeloso, Italy |
| 54.3 | Appointed | Claudius de Villagómez † | Titular Bishop of Traianopolis in Rhodope |
| 58.7 | Confirmed | Hermann Werner von Wolf-Metternich zu Gracht † | Bishop of Paderborn, Germany |
| 26 Apr | | Born | Giulio de Turris † | Vico Equense | Bishop of Ruvo (Ruo)(di Puglia), Italy |
| May | | Born | Ludovico Ancaiani † | Spoleto | Bishop of Spoleto, Italy |
| 74.3 | Died | Francesco Cini † | Bishop of Macerata-Tolentino, Italy |
| 63.5 | Died | Antonio Graziani † | Bishop of Boiano, Italy |
| 52.3 | Died | Martin Jelić † | Bishop of Sapë, Albania |
| 1 May | 54.2 | Ordained Bishop | Giovanni Battista de Belli † | Bishop of Telese o Cerreto Sannita, Italy |
| 46.3 | Ordained Bishop | Fulvio Cribelli (Crivelli) † | Bishop of Tricarico, Italy |
| 40.2 | Ordained Bishop | Sigmund Christoph von Herberstein † | Bishop of Ljubljana, Slovenia | Bishop Emeritus |
| 56.2 | Ordained Bishop | Domenico Minio † | Bishop of Caorle, Italy |
| 37.1 | Ordained Bishop | Antonio Polcenigo † | Bishop of Feltre, Italy |
| 8 May | | Died | Mikołaj Stefan Pac † | Bishop of Vilnius, Lithuania |
| 15 May | 52.2 | Appointed | Davide Cocco Palmieri, O.S.Io.Hieros. † | Bishop of Malta |
| 42.4 | Appointed | Giambattista Rubini † | Bishop of Vicenza, Italy | Cardinal, Bishop Emeritus |
| 43.3 | Appointed | Franz Christoph Rinck von Balderstein † | Auxiliary Bishop of Eichstätt, Germany |
| 43.3 | Appointed | Franz Christoph Rinck von Balderstein † | Titular Bishop of Amyclae | Auxiliary Bishop of Eichstätt, Germany |
| 16 May | 57.0 | Appointed | Giovanni Battista De Pace, C.O. † | Bishop of Capaccio, Italy |
| 21 May | | Born | Juan Francisco Navarro Salvador y Gilabert † | Calatayud | Bishop of Albarracin, Spain |
| 42.4 | Ordained Bishop | Giambattista Rubini † | Bishop of Vicenza, Italy | Cardinal, Bishop Emeritus |
| 22 May | | Born | José Esteban Noriega, O. Praem. † | Salamanca | Bishop of Solsona, Spain |
| 24 May | 52.4 | Died | Ambrosio Ignacio Spínola y Guzmán † | Archbishop of Sevilla {Seville}, Spain |
| 27 May | 24.3 | Ordained Priest | Francesco Maria Arrighi † | Priest | Bishop of Montepulciano, Italy |
| 24.1 | Ordained Priest | Adam Franciszek Ksawery Rostkowski † | Priest | Auxiliary Bishop of Luceoria o Łuck, Ukraine |
| 31 May | 43.4 | Selected | Armand-Louis Bonnin de Chalucet † | Bishop of Toulon, France |
| 44.4 | Selected | Jacques-Joseph de Gourgues † | Bishop of Bazas, France |
| 34.4 | Selected | Charles-Bénigne Hervé † | Bishop of Gap, France | Bishop Emeritus |
| 44.4 | Selected | Armand-Anne-Tristan de La Baume de Suze † | Archbishop of Auch, France |
| 54.4 | Selected | Paul-Louis-Philippe de Lézay de Lusignan † | Bishop of Rodez, France |
| 58.4 | Selected | Victor-Augustin Méliand (Melrand) † | Bishop of Alet, France | Bishop Emeritus |
| 51.4 | Selected | François Verjus † | Bishop of Grasse, France |
| 28.5 | Selected | Charles-Gaspard-Guillaume de Vintimille du Luc † | Bishop of Marseille, France | Archbishop of Paris, France |
| Jun | 44.4 | Resigned | Louis-Alphonse de Valbelle † | Bishop of Alet, France | Bishop of Saint-Omer, France |
| 4 Jun | 52.3 | Ordained Bishop | Davide Cocco Palmieri, O.S.Io.Hieros. † | Bishop of Malta |
| 54.4 | Died | Guillaume Mahot, M.E.P. † | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 5 Jun | 60.7 | Confirmed | Luis de Ayllon † | Bishop of Ceuta, Spain |
| 57.5 | Appointed | Gianfrancesco Ginetti † | Cardinal, Archbishop of Fermo, Italy |
| 11 Jun | 57.0 | Ordained Bishop | Giovanni Battista De Pace, C.O. † | Bishop of Capaccio, Italy |
| 57.5 | Ordained Bishop | Gianfrancesco Ginetti † | Cardinal, Archbishop of Fermo, Italy |
| 13 Jun | | Born | Lazzaro Pallavicini † | Januen | Titular Archbishop of Thebae |
| 14 Jun | | Born | Kasimir Anton von Sickingen † | Ebnet | Bishop of Konstanz {Constance}, Germany |
| 19 Jun | 48.8 | Appointed | Joannes Cuppari † | Bishop of Trogir (Traù), Croatia |
| 48.5 | Appointed | Stefano David † | Bishop of Krk (Veglia), Croatia |
| 50.2 | Appointed | Pier Giulio Dolfin † | Bishop of Capodistria (Capo d'Istria)(Koper), Slovenia |
| 39.5 | Appointed | Nicolaus Gabrieli † | Bishop of Novigrad (Cittanova), Croatia | Bishop Emeritus |
| 41.9 | Appointed | Giovanni Battista Sanudo † | Bishop of Treviso, Italy |
| 24 Jun | | Born | Antonio Giuseppe Carcassona † | Cagliari | Bishop of Ales e Terralba, Italy |
| 25 Jun | 48.8 | Ordained Bishop | Joannes Cuppari † | Bishop of Trogir (Traù), Croatia |
| 48.6 | Ordained Bishop | Stefano David † | Bishop of Krk (Veglia), Croatia |
| 39.5 | Ordained Bishop | Nicolaus Gabrieli † | Bishop of Novigrad (Cittanova), Croatia | Bishop Emeritus |
| 29 Jun | 62.6 | Died | Jean-Baptiste de Strambino, O.F.M. † | Bishop of Lausanne, Switzerland |