| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Giovanni Francesco Bossi, O.F.M. Conv. † | Mediolanen | Archbishop of Naxos, Greece |
| 61.0 | Died | Antonio Bottis, C.R.S. † | Bishop of Minori, Italy |
| Died | Marcos Bravo de la Serna Manrique † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 67.8 | Died | Giacomo Buoni † | Bishop of Nepi e Sutri, Italy |
| Died | Vincenzo Carafa, C.R.L. † | Bishop of Calvi Risorta, Italy |
| 55.0 | Ordained Bishop | Bernardo de Carrasco y Saavedra, O.P. † | Bishop of Santiago de Chile | Bishop of La Paz, Bolivia |
| Born | Martín de Elizacoechea † | Azpilcueta, Spain | Bishop of Michoacán, México |
| 25.5 | Ordained Priest | André-Hercule de Fleury † | Priest | Cardinal, Bishop Emeritus of Fréjus, France |
| Born | Luigi Guarchi † | Chien | Bishop of Tinos, Greece |
| Born | Antonio López Portillo de Guadalupe, O.F.M. † | Guadalajara, México | Bishop of Comayagua, Honduras |
| Born | Ramón Marimón Corbera † | Barcelona | Bishop of Vic, Spain |
| 23.4 | Ordained Priest | Daniele Sansoni † | Priest | Bishop of Novigrad (Cittanova), Croatia |
| Born | Francesco Saraceni, O.F.M. † | Conca, Italy | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China |
| Appointed | Ondrej Sebestyén † | Bishop of the Titular See | Official of Spiš, Slovakia |
| 67.0 | Died | Antonius Sotomayor, O.S.B. † | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| Jan | | Born | Claudio Domenico Albini † | Muran | Bishop of Lacedonia, Italy |
| Born | Elzear des Achards de La Baume † | Avenionen | Titular Bishop of Halicarnassus |
| 1 Jan | | Born | Manuel Samaniego Jaca † | Logroño | Archbishop Emeritus of Burgos, Spain |
| 4 Jan | 69.0 | Died | Juan Astorga de Castillo † | Bishop of Zamora, Spain |
| 50.0 | Died | Frans van Horenbeke † | Bishop of Gent {Ghent, Gand}, Belgium |
| 6 Jan | | Died | Louis-Hercule de Lévis-Ventadour † | Bishop of Mirepoix, France |
| 9 Jan | 56.5 | Selected | Karl Heinrich von Metternich-Winneburg † | Archbishop of Mainz, Germany | Archbishop-Elect |
| 10 Jan | | Born | Marc’Antonio Amalfitani † | Castel Monardo | Bishop of Ortona a Mare e Campli, Italy |
| Born | Sigismund Felix von Schrattenbach † | Neukirchen | Bishop of Ljubljana, Slovenia |
| 11 Jan | | Born | Carlo Felice Sanmartino † | Castelnuovo | Bishop of Mondovi, Italy |
| 12 Jan | | Born | Joseph Oswald von Attems † | Gorizia | Bishop of Lavant, Slovenia |
| 13 Jan | | Born | François-Firmin Trudaine † | Amiens | Bishop of Senlis, France |
| 24 Jan | 83.6 | Died | Ulderico Carpegna † | Cardinal, Bishop Emeritus of Todi, Italy |
| 25 Jan | 56.5 | Selected | Karl Heinrich von Metternich-Winneburg † | Bishop of Worms, Germany | Archbishop-Elect of Mainz, Germany |
| 28 Jan | | Born | Gaspar de Molina y Oviedo, O.S.A. † | Mérida, Spain | Cardinal, Bishop of Málaga, Spain |
| 1 Feb | | Born | Francesco Ricci † | Rome, Italy | Cardinal, Cardinal-Priest of Santa Maria del Popolo |
| 2 Feb | | Died | Balthasaris Grangier † | Bishop of Tréguier, France |
| 41.1 | Died | Guillaume de Meschatin † | Bishop of Gap, France |
| 6 Feb | | Born | Cristoforo Lorenzo Baratta † | Savigliano | Bishop of Fossano, Italy |
| 36.4 | Confirmed | François Bouthillier de Chavigny † | Bishop of Troyes, France | Bishop Emeritus |
| 65.6 | Appointed | Alderano Cibo † | Cardinal-Bishop of Palestrina | Cardinal, Bishop Emeritus of Jesi, Italy |
| 70.4 | Appointed | Cesare Facchinetti † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 49.1 | Appointed | Angelus Grimaldi, O.P. † | Auxiliary Bishop of Albano, Italy |
| 49.1 | Appointed | Angelus Grimaldi, O.P. † | Titular Bishop of Methone | Auxiliary Bishop of Albano, Italy |
| 47.4 | Appointed | Antonio Perez de la Lastra † | Bishop of Gallipoli, Italy |
| 64.1 | Appointed | Lorenzo Raggi † | Cardinal-Priest of San Lorenzo in Damaso | Cardinal, Cardinal-Bishop of Palestrina |
| 7 Feb | 59.1 | Ordained Bishop | Nicolás Ortiz del Puerto y Colmenares Salgado † | Bishop of Antequera, Oaxaca, México |
| 12 Feb | 59.1 | Ordained Bishop | Pierre du Laurens, O.S.B. † | Bishop of Belley, France |
| 82.1 | Died | Juan Manuel de Espinosa, O.S.B. † | Archbishop of Tarragona, Spain |
| 15 Feb | | Born | Francesco Pertusati, O.S.B. † | Mediolanen | Bishop of Pavia, Italy |
| 17 Feb | 16.0 | Professed | Filippo Valignani, O.P. † | Member of Order of Friars Preachers | Archbishop of Chieti, Italy |
| 19 Feb | | Born | Domenico Maria de Liguori (Liguoro), C.R. † | Napoli | Bishop of Cava (de’ Tirreni), Italy |
| 21 Feb | | Born | Carlo Leopoldo Calcagnini † | Ferrara, Italy | Cardinal, Cardinal-Deacon of Santa Maria in Ara Coeli |
| 22 Feb | 61.5 | Installed | Hyacinthe Serroni, O.P. † | Archbishop of Albi, France |
| 23 Feb | 57.1 | Installed | Andrés de las Navas y Quevedo, O. de M. † | Bishop of Nicaragua | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| 24 Feb | 45.1 | Selected | François-Ignace de Baglion du Saillant, C.O. † | Bishop of Tréguier, France | Bishop of Poitiers, France |
| 39.1 | Ordained Priest | Joaquín Canaves, O.S.Io.Hieros. † | Priest of Sovereign Military Hospitaller Order of St John of Jerusalem | Bishop of Malta |
| 35.1 | Selected | Pierre de La Broue † | Bishop of Mirepoix, France |
| 27.7 | Selected | Louis-Antoine de Noailles † | Bishop of Cahors, France | Cardinal, Archbishop of Paris, France |
| 45.9 | Ordained Bishop | Alonso Vargas y Barca, O.S.A. † | Bishop of Comayagua, Honduras |
| 26 Feb | 49.2 | Died | Antonio Manrique de Guzmán † | Patriarch of West Indies, Spain |
| Born | Maciej Aleksander Sołtyk † | Buszcze | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| Mar | 62.2 | Selected | Louis d’Anglure de Bourlemont † | Bishop of Fréjus, France | Archbishop of Bordeaux, France |
| 17 Mar | 62.2 | Died | Adolph Gottfried Volusius † | Auxiliary Bishop of Mainz, Germany |
| 19 Mar | 47.5 | Ordained Bishop | Antonio Perez de la Lastra † | Bishop of Gallipoli, Italy |
| 24 Mar | 49.2 | Selected | Alonso de Balmaseda, O.S.A. † | Bishop of Zamora, Spain |
| Apr | | Born | Matteo Trigona † | Piazza | Bishop Emeritus of Siracusa, Italy |
| 1 Apr | 31.3 | Ordained Priest | Ascanio Silvestri † | Priest | Bishop of Pienza, Italy |
| 6 Apr | 24.1 | Ordained Priest | Jacques-Nicolas de Colbert † | Priest | Archbishop of Rouen, France |
| 7 Apr | | Born | Vincent Antoine Alamanni Nasi † | Florence | Titular Archbishop of Seleucia in Isauria |
| 9 Apr | 36.6 | Ordained Bishop | François Bouthillier de Chavigny † | Bishop of Troyes, France | Bishop Emeritus |
| 10 Apr | 67.3 | Appointed | Antonio de Benavides y Bazán † | Titular Archbishop of Tyrus | Patriarch of West Indies, Spain |
| 41.2 | Appointed | Johann Ignaz Dlouhovesky † | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 41.2 | Appointed | Johann Ignaz Dlouhovesky † | Titular Bishop of Milevum | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 49.3 | Appointed | Vincenzo Maria de Silva, O.P. † | Bishop of Calvi Risorta, Italy |
| 50.7 | Appointed | Gerardus Gherardi † | Bishop of Pistoia e Prato, Italy |
| 30.0 | Confirmed | Diego Ibáñez de la Madrid y Bustamente † | Bishop of Trivento, Italy | Bishop of Ceuta, Spain |
| 47.3 | Appointed | Benedetto Milazzi † | Bishop of Ostuni, Italy |
| 37.3 | Confirmed | Michel Phélypeaux de La Vrillière † | Archbishop of Bourges, France |
| 16 Apr | 30.0 | Ordained Bishop | Diego Ibáñez de la Madrid y Bustamente † | Bishop of Trivento, Italy | Bishop of Ceuta, Spain |
| 47.3 | Ordained Bishop | Benedetto Milazzi † | Bishop of Ostuni, Italy |
| 23 Apr | 49.3 | Ordained Bishop | Angelus Grimaldi, O.P. † | Titular Bishop of Methone | Auxiliary Bishop of Albano, Italy |
| 29 Apr | | Born | Giovanni Girolamo della Torre, B. † | Genova | Bishop of Luni e Sarzana, Italy |
| May | 65.3 | Died | Michael Angelus Broglia † | Bishop of Vercelli, Italy |
| Born | Jozafat Karp † | Szaulen | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 3 May | 48.7 | Ordained Priest | Polo Pecci † | Priest | Bishop of Massa Marittima, Italy |
| 6 May | | Died | Thomas Pállfy ab Erdöd † | Bishop of Nitra, Slovakia |
| 57.3 | Selected | Antonio Sánchez de Castellar † | Bishop of Orihuela, Spain |
| 8 May | 67.4 | Appointed | Antonio de Benavides y Bazán † | Patriarch of West Indies, Spain |
| 58.4 | Appointed | Tommaso de Rosa † | Bishop of Policastro, Italy |
| 27.9 | Confirmed | Louis-Antoine de Noailles † | Bishop of Cahors, France | Cardinal, Archbishop of Paris, France |
| 9 May | | Born | Winimar Knippschild, O.S.B. † | Medebach | Auxiliary Bishop of Paderborn, Germany |
| 11 May | | Died | Ettore Molza † | Bishop of Modena, Italy |
| 15 May | 59.4 | Died | Carlo Vaini † | Titular Archbishop of Nicaea |
| 17 May | 50.4 | Died | Giuseppe Civran † | Bishop of Vicenza, Italy |
| 20 May | 50.4 | Selected | Francisco de Borja † | Bishop of Trujillo, Peru |
| 23 May | 24.1 | Ordained Priest | Gian Andrea Moscarelli † | Priest | Bishop of Guardialfiera (Guardia), Italy |
| 27 May | 23.0 | Ordained Priest | Giacomo Falconetti, O.P. † | Priest of Order of Friars Preachers | Bishop of Grosseto, Italy |
| Born | Leopold Anton Eleutherius von Firmian † | München | Archbishop of Salzburg, Austria |
| 23.0 | Ordained Priest | Gerolamo Francesco Malpasciuto † | Priest | Bishop of Vercelli, Italy |
| 28 May | 67.4 | Ordained Bishop | Antonio de Benavides y Bazán † | Patriarch of West Indies, Spain |
| 69.4 | Died | Gaudenzio Poli † | Bishop of Amelia, Italy |
| 31 May | 31.4 | Appointed | Matteo Berniacovich, O.F.M. † | Administrator of Smederevo (Semendria), Serbia | Bishop of Beograd {Belgrade}, Serbia |
| 1 Jun | | Born | Giacinto Zanobetti, O.P. † | Iadren | Bishop of Kotor (Cattaro), Montenegro |
| 10 Jun | 62.6 | Resigned | Gilles de La Baume le Blanc de la Valière † | Bishop of Nantes, France | Bishop Emeritus |
| 11 Jun | 41.3 | Ordained Bishop | Johann Ignaz Dlouhovesky † | Titular Bishop of Milevum | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 12 Jun | 45.4 | Confirmed | François-Ignace de Baglion du Saillant, C.O. † | Bishop of Tréguier, France | Bishop of Poitiers, France |
| 47.4 | Appointed | Sancho de Andrade de Figueroa † | Bishop of Ayacucho o Huamanga (Guamanga), Peru | Bishop of Quito, Ecuador |
| 47.4 | Appointed | Francesco Scannagatta † | Bishop of Avellino e Frigento, Italy |
| Resigned | Tomasz Wieyski (Ujejski) † | Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine | Bishop Emeritus |
| 49.4 | Appointed | Jan Stanisław Witwicki † | Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine | Bishop of Poznań, Poland |
| 15 Jun | 55.4 | Died | Pierre Lambert de la Motte, M.E.P. † | Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| 16 Jun | 41.9 | Died | Giovanni Stefano Sanarica (Senarega), O.S.B. † | Bishop of Conversano, Italy |
| 18 Jun | 28.1 | Ordained Bishop | Louis-Antoine de Noailles † | Bishop of Cahors, France | Cardinal, Archbishop of Paris, France |
| 47.5 | Ordained Bishop | Francesco Scannagatta † | Bishop of Avellino e Frigento, Italy |
| 19 Jun | | Born | Nicola Jorio (Iorio) † | Napoli | Titular Archbishop of Nazareth |