| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 47.1 | Appointed | Andreas Aerts † | Vicar Apostolic of ’s Hertogenbosch (Bois-le-Duc), Netherlands |
| 38.4 | Appointed | Marcantonio Colonna (Jr.) † | Archpriest of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} | Cardinal, Cardinal-Bishop of Palestrina |
| 54.7 | Appointed | Innocenzo Gorgoni, O.S.B. † | President of Pontifical Ecclesiastical Academy, Roman Curia | President Emeritus |
| Appointed | Basile Jelghaf † | Archbishop of Beirut {Bairut} (Melkite Greek), Lebanon |
| 67.5 | Died | Romualdu Massei † | Bishop of Nebbio, France |
| 1 Jan | 38.8 | Selected | Marc-Antoine de Noé † | Bishop of Lescar, France | Bishop of Troyes, France |
| 3 Jan | | Born | Joseph Fesch † | Ajaccio | Cardinal, Archbishop of Lyon (-Vienne), France |
| 9 Jan | 23.0 | Ordained Priest | Luigi Maria Pirelli, C.R. † | Priest of Congregation of Clerics Regular | Archbishop of Trani e Bisceglie, Italy |
| 11 Jan | | Born | Matthaeus Crasnich † | Prizren | Archbishop of Skopje, Macedonia |
| 14 Jan | 45.4 | Died | Giuseppe Stanislao Concas † | Bishop of Bosa, Italy |
| 37.9 | Appointed | Henry Benedict Mary Clement Stuart of York † | Cardinal-Priest of San Lorenzo in Damaso | Cardinal, Bishop of Frascati, Italy |
| 18 Jan | 54.7 | Died | Girolamo Colonna di Sciarra † | Cardinal, Cardinal-Deacon of Sant’Agata de’ Goti |
| 19 Jan | | Died | Antoine-Jérôme Boyvin de Vaurouy † | Former Bishop-Elect of Perpignan-Elne, France |
| 76.6 | Died | Antoni Józef Zolkowski † | Auxiliary Bishop of Vilnius, Lithuania |
| 22 Jan | | Appointed | Raphael Tuki † | Titular Bishop of Arsinoë in Cypro |
| 23 Jan | 50.2 | Ordained Bishop | Ján Gustíni-Zubrohlavský † | Titular Bishop of Sergiopolis | Bishop of Nitra, Slovakia |
| 24 Jan | 62.9 | Appointed | Filippo Acciaioli (Acciajuoli) † | Archbishop (Personal Title) of Ancona e Numana, Italy | Cardinal, Bishop |
| 56.0 | Appointed | Prospero Colonna di Sciarra † | Cardinal, Cardinal-Deacon of Sant’Agata de’ Goti |
| 58.3 | Appointed | Antonio De Cumis † | Bishop of Catanzaro, Italy |
| 52.4 | Appointed | Antonino Ganini † | Archbishop of Santa Severina, Italy |
| 39.0 | Confirmed | Anne-François-Victor Le Tonnelier de Breteuil † | Bishop of Montauban, France |
| 29.3 | Appointed | Józef Michał Ignacy Franciszek Olędzki, Sch. P. † | Auxiliary Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine | Auxiliary Bishop Emeritus |
| 29.3 | Appointed | Józef Michał Ignacy Franciszek Olędzki, Sch. P. † | Titular Bishop of Cambysopolis | Auxiliary Bishop Emeritus of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| 43.6 | Appointed | Domenico Orsini d’Aragona † | Cardinal-Deacon of Santa Maria ad Martyres | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
| 43.5 | Appointed | Giovanni Pignatelli † | Archbishop (Personal Title) of Anglona-Tursi, Italy | Bishop Emeritus |
| 38.7 | Appointed | Carlo Rezzonico (Jr.) † | Cardinal-Priest of San Clemente | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 38.7 | Appointed | Carlo Rezzonico (Jr.) † | Chamberlain (Camerlengo) of the Apostolic Chamber | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 65.9 | Confirmed | Charles-Antoine de la Roche-Aymon † | Cardinal, Archbishop of Reims, France |
| 25 Jan | 55.9 | Selected | Wilhelm Anton von der Asseburg zu Hinnenburg † | Bishop of Paderborn, Germany |
| 40.1 | Appointed | François Magni, O.F.M. † | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China | Vicar Apostolic Emeritus |
| 40.1 | Appointed | François Magni, O.F.M. † | Titular Bishop of Miletopolis | Vicar Apostolic Emeritus of Shansi {Scian-Si} (Chan-Si), China |
| 27 Jan | 59.4 | Died | Johann Theodor von Bayern † | Cardinal, Bishop of Regensburg, Germany |
| 28 Jan | | Born | Joseph Walland † | Neudorf | Archbishop of Gorizia e Gradisca, Italy |
| 29 Jan | 67.0 | Died | Juan José de Eguiara y Eguren † | Former Bishop-Elect of Yucatán (Mérida), México |
| 30 Jan | 58.3 | Ordained Bishop | Antonio De Cumis † | Bishop of Catanzaro, Italy |
| 52.4 | Ordained Bishop | Antonino Ganini † | Archbishop of Santa Severina, Italy |
| 35.3 | Selected | Etienne-Charles de Loménie de Brienne † | Archbishop of Toulouse, France | Cardinal, Archbishop of Sens, France |
| 31 Jan | 29.0 | Appointed | Joseph Franz Anton von Auersperg † | Bishop of Lavant, Slovenia | Cardinal, Bishop of Passau, Germany |
| Died | Felipe Manrique de Lara † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 1 Feb | | Born | Jaime Fort y Puig † | Llivia | Bishop of Barbastro, Spain |
| 2 Feb | | Born | Bernardo Martínez Carnero † | Villar de Santos | Bishop of Islas Canarias {Canary Islands}, Spain |
| 4 Feb | | Born | Pietro Antonio Cirio † | Canelli | Bishop of Susa, Italy |
| 6 Feb | | Born | Gaetano Maria de Franci † | Napoli | Archbishop of Trani e Nazareth e Bisceglie, Italy |
| 7 Feb | 35.8 | Selected | Friedrich Wilhelm von Westphalen † | Bishop of Hildesheim, Germany |
| 10 Feb | | Born | Cherubin Scali, O.F.M. † | Roma, Italy | Titular Bishop of Dionysias |
| 11 Feb | | Born | José de Jesus Maria Pinto, C.R.S.A. † | | Bishop of Lamego, Portugal |
| 24 Feb | 22.9 | Ordained Priest | Giovanni Giuseppe D’Anisi (Dalla Croce) † | Priest | Bishop of Gallipoli, Italy |
| 39.1 | Ordained Bishop | Anne-François-Victor Le Tonnelier de Breteuil † | Bishop of Montauban, France |
| 26 Feb | 68.0 | Died | Carolus Franciscus Casanova † | Archbishop of Sassari, Italy |
| 24.1 | Ordained Priest | Francisco Gomes de Avelar, C.O. † | Priest of Confederation of Oratorians of St. Philip Neri | Bishop of Faro {Algarve}, Portugal |
| Born | Luigi Pietro Grati, O.S.M. † | Falconara | Titular Bishop of Callinicum |
| 27 Feb | | Born | Francisco José Rodrigues de Andrade † | Lisboa | Bishop of Funchal, Portugal |
| 28 Feb | 29.4 | Ordained Bishop | Józef Michał Ignacy Franciszek Olędzki, Sch. P. † | Titular Bishop of Cambysopolis | Auxiliary Bishop Emeritus of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| 2 Mar | 53.2 | Died | Baldassare Cenci (Jr.) † | Cardinal, Cardinal-Priest of Santa Maria in Ara Coeli |
| 3 Mar | | Born | Joseph-Octave Plessis † | Montréal | Archbishop of Québec, Canada |
| 6 Mar | | Born | Pietro Gravina Luzzena † | Catania | Auxiliary Bishop of Catania, Italy |
| 10 Mar | | Born | Luc-Jean-Baptiste Bailly † | Paris | Bishop of Poitiers, France |
| 15 Mar | | Born | James Yorke Bramston † | Oundle | Vicar Apostolic of London District, England, Great Britain |
| Born | Antonio Maria Odescalchi † | Roma | Bishop of Jesi, Italy |
| 18 Mar | | Born | Francesco Maria Gazzoli † | Terni | Bishop of Todi, Italy |
| 77.6 | Died | Guido Orselli † | Bishop of Cesena, Italy |
| 19 Mar | 29.2 | Ordained Priest | Boetius Egan † | Priest | Archbishop of Tuam, Ireland |
| 23.7 | Ordained Priest | Anton Ferdinand von Rothkirch und Panthen † | Priest of Wrocław (Breslau), Poland | Auxiliary Bishop |
| 24.0 | Ordained Priest | Domenico Spinucci † | Priest | Cardinal, Archbishop of Benevento, Italy |
| 21 Mar | 74.1 | Appointed | Pietro Paolo de Conti † | Cardinal, Cardinal-Priest of Santo Stefano al Monte Celio |
| 41.5 | Confirmed | Arthur-Richard Dillon † | Archbishop of Narbonne, France |
| 58.6 | Appointed | Francisco Fernández Játiva † | Bishop of Urgell, Spain |
| 37.7 | Appointed | Diego Genovesi † | Bishop of Squillace, Italy |
| 50.6 | Appointed | Carlo Vittorio Amedeo delle Lanze † | Cardinal-Priest of Santa Prassede | Cardinal, Prefect of the Congregation of the Council |
| 35.4 | Confirmed | Etienne-Charles de Loménie de Brienne † | Archbishop of Toulouse, France | Cardinal, Archbishop of Sens, France |
| 69.5 | Confirmed | Simon Nikolaus Euseb von Montjoye-Hirsingen † | Bishop of Basel, Switzerland |
| 83.4 | Appointed | Giacomo Oddi † | Cardinal-Priest of San Lorenzo in Lucina | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 81.9 | Died | Stanislao Poliastri † | Archbishop Emeritus of Rossano, Italy | Archbishop |
| 67.4 | Appointed | Fabrizio Serbelloni † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| Born | Thomas Smith † | Brooms | Vicar Apostolic of Northern District, England, Great Britain |
| 41.2 | Appointed | José Tormo Juliá † | Auxiliary Bishop of Valencia, Spain | Bishop of Orihuela, Spain |
| 41.2 | Appointed | José Tormo Juliá † | Titular Bishop of Tricomia | Bishop of Orihuela, Spain |
| 25 Mar | 63.3 | Ordained Priest | Tommaso Galli † | Priest | Bishop of Tivoli, Italy |
| 27 Mar | 37.7 | Ordained Bishop | Diego Genovesi † | Bishop of Squillace, Italy |
| 36.0 | Ordained Priest | Friedrich Wilhelm von Westphalen † | Priest of Hildesheim, Germany | Bishop |
| 28 Mar | | Born | Emanuel Maria Thun † | Trento | Bishop of Trento, Italy |
| 1 Apr | | Born | Jean-Baptiste-Marie Caffarelli † | Falga | Bishop of Saint-Brieuc, France |
| Born | Vicente da Soledade e Castro, O.S.B. † | Porto | Archbishop of São Salvador da Bahia, Brazil |
| 3 Apr | | Born | Giuseppe Prin † | Sauze di Cesena | Bishop of Susa, Italy |
| 4 Apr | 59.6 | Died | Nicolás Gil Martínez y Malo † | Bishop of Santa Marta, Colombia |
| 11 Apr | 56.2 | Ordained Priest | Wilhelm Anton von der Asseburg zu Hinnenburg † | Priest of Paderborn, Germany | Bishop |
| Selected | John Butler † | Bishop of Cork, Ireland | Bishop Emeritus |
| Died | Richard Walsh † | Bishop of Cork, Ireland |
| 12 Apr | | Born | Benito María de Moxó y Francolí, O.S.B. † | Cervera, Spain | Archbishop of La Plata o Charcas, Bolivia |
| 69.2 | Died | Giuseppe Spinelli † | Cardinal-Bishop of Ostia (e Velletri) | Cardinal, Cardinal-Bishop of Ostia |
| 14 Apr | 64.0 | Died | Francesco Paolo Carelli † | Bishop of Montepeloso, Italy |
| 15 Apr | | Born | Manuel Fraile García † | Lantadilla | Bishop of Sigüenza, Spain |
| Born | Joseph Salecz † | Zagreb | Auxiliary Bishop of Zagreb (Agram), Croatia |
| 16 Apr | | Confirmed | John Butler † | Bishop of Cork, Ireland | Bishop Emeritus |
| 17 Apr | 25.1 | Ordained Priest | Józef Kazimierz Kossakowski † | Priest | Bishop of Inflanty (Livonia)-Pilten, Poland |
| 18 Apr | 23.6 | Selected | Klemens Wenzeslaus von Sachsen † | Bishop of Freising, Germany | Bishop of Augsburg, Germany |
| 20 Apr | 46.8 | Selected | Charles Nicolas Alexandre d’Oultremont † | Bishop of Liège, Belgium |
| 26 Apr | 57.6 | Appointed | Giuseppe Maria Castelli † | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 27 Apr | 23.6 | Selected | Klemens Wenzeslaus von Sachsen † | Bishop of Regensburg, Germany | Bishop of Augsburg, Germany |
| 4 May | 23.6 | Confirmed | Klemens Wenzeslaus von Sachsen † | Bishop of Regensburg, Germany | Bishop of Augsburg, Germany |
| 7 May | 61.3 | Resigned | Jean-Louis de Gouyon de Vaudurand † | Bishop of Saint-Pol-de-Léon, France | Bishop Emeritus |
| 8 May | 62.1 | Ordained Bishop | Antonio Alcalde y Barriga, O.P. † | Bishop of Yucatán (Mérida), México | Bishop of Guadalajara, Jalisco, México |
| 13 May | | Born | José Antonio Joaquín Pérez Martínez y Robles † | Puebla | Bishop of Tlaxcala, México |
| 16 May | 56.3 | Confirmed | Wilhelm Anton von der Asseburg zu Hinnenburg † | Bishop of Paderborn, Germany |
| 40.4 | Appointed | Charles de La Cropte de Chanterac † | Bishop of Alet, France |
| 37.4 | Appointed | Nicola Filomarini (Filomarino), O.S.B. † | Archbishop of Acerenza e Matera, Italy | Bishop of Caserta, Italy |
| 79.8 | Appointed | Carlo Alberto Guidobono Cavalchini † | Cardinal-Bishop of Ostia (e Velletri) | Cardinal, Datary of the Apostolic Datary |
| 39.1 | Confirmed | Marc-Antoine de Noé † | Bishop of Lescar, France | Bishop of Troyes, France |
| 67.5 | Appointed | Fabrizio Serbelloni † | Cardinal-Bishop of Albano | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 36.7 | Appointed | Giulio Cesare Viancini † | Archbishop of Sassari, Italy | Bishop of Biella, Italy |
| 36.1 | Confirmed | Friedrich Wilhelm von Westphalen † | Bishop of Hildesheim, Germany |
| 17 May | | Born | Gervais-Marie-Joseph Ortric † | Baziège | Bishop of Pamiers, France |
| 22 May | 29.3 | Ordained Bishop | Joseph Franz Anton von Auersperg † | Bishop of Lavant, Slovenia | Cardinal, Bishop of Passau, Germany |
| 37.5 | Ordained Bishop | Nicola Filomarini (Filomarino), O.S.B. † | Archbishop of Acerenza e Matera, Italy | Bishop of Caserta, Italy |
| 28 May | 23.1 | Ordained Priest | Matteo Aceto † | Priest | Bishop of Nusco, Italy |
| 26.3 | Ordained Priest | Nicola Francesco Franchi † | Priest | Bishop of Penne e Atri, Italy |
| 22.9 | Ordained Priest | Paolo Pozzuoli † | Priest | Bishop of Sant’Agata de’ Goti, Italy |
| 32.9 | Ordained Priest | Pedro de Melo e Brito da Silveira Alvim † | Priest | Bishop of Portalegre, Portugal |
| 25.6 | Ordained Priest | Raimondo A. Vecchietti † | Priest | Bishop of Colle di Val d’Elsa, Italy |
| 29 May | 26.8 | Ordained Priest | Carlo Bellisomi † | Priest | Cardinal, Bishop of Cesena, Italy |
| Jun | | Ordained Bishop | John Butler † | Bishop of Cork, Ireland | Bishop Emeritus |
| 4 Jun | 73.9 | Died | Johann Friedrich Karl von Ostein † | Archbishop of Mainz, Germany |
| 65.0 | Died | Giovanni Domenico Santucci † | Bishop of Acquapendente, Italy |
| 5 Jun | 42.4 | Ordained Bishop | Alexandre-César d’Anterroches † | Bishop of Condom, France |
| 7 Jun | | Born | Pietro-Paolo Presicce, O.S.A. † | Nardo | Bishop of Tricarico, Italy |
| 11 Jun | 70.5 | Died | Camillo Paolucci (Merlini) † | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 12 Jun | 58.8 | Ordained Bishop | Francisco Fernández Játiva † | Bishop of Urgell, Spain |
| 39.2 | Ordained Bishop | Marc-Antoine de Noé † | Bishop of Lescar, France | Bishop of Troyes, France |
| Born | Carlo Puoti † | Napoli | Bishop of Alife, Italy |
| 15 Jun | 65.2 | Died | Giovanni Battista Miceli † | Bishop of Cassano all’Jonio, Italy |
| 50.1 | Died | Josef Maria von Thun und Hohenstein † | Bishop of Passau, Germany |
| 19 Jun | 40.5 | Ordained Bishop | Charles de La Cropte de Chanterac † | Bishop of Alet, France |
| 21 Jun | | Died | Richard Lincoln † | Archbishop of Dublin, Ireland |
| 23 Jun | | Born | Augustin Johann Joseph Gruber † | Wien | Archbishop of Salzburg, Austria |
| 26 Jun | 56.4 | Ordained Bishop | Wilhelm Anton von der Asseburg zu Hinnenburg † | Bishop of Paderborn, Germany |
| 27 Jun | 52.9 | Resigned | Tommaso Ignazio Natta, O.P. † | Archbishop of Cagliari, Italy | Archbishop Emeritus |