| Date | Age | Event | Bishop | Title | Current Title |
| 2 May | 59.1 | Selected | Walenty Alexander Czapski, O. Cist. † | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 42.8 | Selected | Adam Stanisław Grabowski † | Bishop of Warmia (Ermland), Poland |
| 3 May | 73.4 | Died | Luis de Salcedo y Azcona † | Archbishop of Sevilla {Seville}, Spain |
| 6 May | 48.6 | Ordained Bishop | Domingo Pérez Rivera † | Titular Bishop of Gadara | Auxiliary Bishop of Sevilla {Seville}, Spain |
| 10 May | 59.6 | Died | Antonio Maria Santoro, O.M. † | Bishop of Ravello e Scala, Italy |
| 11 May | | Born | Saverio Granata, C.R. † | | Bishop of Agrigento (Girgenti), Italy |
| 59.3 | Selected | Miguel Bernardino de la Fuenta y Rojas † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 55.2 | Selected | Andrés Vergara Uribe † | Bishop of Santa Cruz de la Sierra, Bolivia |
| 13 May | 54.3 | Appointed | William Laurence York, O.S.B. † | Coadjutor Vicar Apostolic of Western District, England, Great Britain | Vicar Apostolic Emeritus |
| 54.3 | Appointed | William Laurence York, O.S.B. † | Titular Bishop of Nebbi | Vicar Apostolic Emeritus of Western District, England, Great Britain |
| 16 May | 70.5 | Died | Giacomo Lanfredini † | Cardinal, Bishop Emeritus of Osimo e Cingoli, Italy |
| 17 May | 64.6 | Died | Francesco Antonio Correr, O.F.M. Cap. † | Patriarch of Venezia {Venice}, Italy |
| 21 May | 43.5 | Died | Bartolomeo Ruspoli † | Cardinal, Cardinal-Deacon of Santi Cosma e Damiano |
| Born | Stanisław Żarnowiecki † | | Auxiliary Bishop of Poznań, Poland |
| 22 May | 62.6 | Died | Giuseppe Maria Martelli † | Archbishop Emeritus of Firenze {Florence}, Italy |
| 23 May | 39.9 | Ordained Bishop | Joseph-Nicolas Deschamps de Chaumont † | Bishop of Genève {Geneva}, Switzerland |
| 26 May | 61.5 | Resigned | Giambattista Curlo † | Bishop of Nebbio, France | Bishop Emeritus |
| 27 May | 29.2 | Ordained Priest | Girolamo Bajardi † | Priest | Bishop of Borgo San Donnino, Italy |
| 23.0 | Ordained Priest | Carlo Nicodemi † | Priest | Bishop of Sant’Angelo dei Lombardi e Bisaccia, Italy |
| 23.0 | Ordained Deacon | Raymund Anton von Strasoldo † | Deacon of Lavant, Slovenia | Bishop of Eichstätt, Germany |
| 29 May | 60.6 | Appointed | Giuseppe Barone † | Bishop of Calvi Risorta, Italy |
| 52.9 | Appointed | Domenico Antonio Brizi † | Bishop of Marsi, Italy |
| 49.3 | Appointed | Girolamo Curlo, C.R.M. † | Bishop of Aleria, France |
| 52.4 | Confirmed | Imrich I. Esterházy de Galántha † | Bishop of Nitra, Slovakia |
| 34.8 | Confirmed | Ferdinand Michael Cyriakus von Hallweil † | Bishop of Wiener Neustadt, Austria |
| 37.1 | Appointed | Francesco Gaetano Incontri † | Archbishop of Firenze {Florence}, Italy |
| 47.1 | Appointed | Adam Imre Majthényi Kesselökö † | Titular Bishop of Esbus |
| 40.7 | Appointed | Paulo Maria Mariotti † | Bishop of Sagone (Sagona), France |
| 45.8 | Appointed | Romualdu Massei † | Bishop of Nebbio, France |
| 40.5 | Appointed | Gaspar de Molina y Rocha, O.S.A. † | Bishop of Almería, Spain |
| 58.0 | Appointed | Diego Felipe de Perea Magdaleno † | Archbishop of Burgos, Spain |
| 51.7 | Appointed | Carlo Maria Sacripante † | Cardinal-Deacon of Santa Maria in Portico (Campitelli) | Cardinal, Cardinal-Bishop of Frascati |
| 37.4 | Confirmed | Louis-Jacques-François de Vocance † | Bishop of Senez, France |
| 4 Jun | 52.9 | Ordained Bishop | Domenico Antonio Brizi † | Bishop of Marsi, Italy |
| 22.9 | Ordained Deacon | Hyacinthe-Sigismond (Jean-François) Gerdil, B. † | Deacon of Clerics Regular of St. Paul | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 40.7 | Ordained Bishop | Paulo Maria Mariotti † | Bishop of Sagone (Sagona), France |
| 45.9 | Ordained Bishop | Romualdu Massei † | Bishop of Nebbio, France |
| 9 Jun | 53.9 | Installed | Guillaume d’Hugues de la Motte † | Bishop of Nevers, France | Archbishop of Vienne, France |
| 11 Jun | 51.4 | Ordained Bishop | François de Beaumont d’Autichamp † | Bishop of Tulle, France |
| 24.0 | Ordained Priest | Antonio D’Afflitto, C.R. † | Priest of Congregation of Clerics Regular | Archbishop of Cosenza, Italy |
| 22.9 | Ordained Priest | Hyacinthe-Sigismond (Jean-François) Gerdil, B. † | Priest of Clerics Regular of St. Paul | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 23.1 | Ordained Priest | Raymund Anton von Strasoldo † | Priest of Lavant, Slovenia | Bishop of Eichstätt, Germany |
| 16 Jun | 49.8 | Died | François-Barthélemi de Salignac de La Mothe-Fénelon † | Bishop of Pamiers, France |
| 17 Jun | 71.4 | Died | Gottfried Langwerth von Simmern † | Auxiliary Bishop of Regensburg, Germany |
| 18 Jun | 34.8 | Ordained Bishop | Ferdinand Michael Cyriakus von Hallweil † | Bishop of Wiener Neustadt, Austria |
| 24 Jun | 34.9 | Ordained Deacon | Giovanni Antonio Castelli † | Deacon | Bishop Emeritus of Kotor (Cattaro), Montenegro |
| 25 Jun | 34.9 | Ordained Priest | Giovanni Antonio Castelli † | Priest | Bishop Emeritus of Kotor (Cattaro), Montenegro |
| 66.4 | Died | Agostino Odoardi, O.S.B. † | Bishop of Capaccio, Italy |
| 33.4 | Selected | Jean-François-Joseph de Rochechouard de Faudoas † | Cardinal, Bishop of Laon, France |
| 29 Jun | | Ordained Bishop | Paul Dragićević (Draghichevich), O.F.M. † | Titular Bishop of Dium | Vicar Apostolic of Bosnia (Ottoman), Croatia |
| 35.3 | Ordained Bishop | Giorgio Maria Lascaris, C.R. † | Titular Bishop of Zenopolis in Lycia | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| 43.0 | Installed | Giuseppe Filippo Porporato † | Bishop of Saluzzo, Italy |
| 30 Jun | | Born | Ignác Batthyány † | | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
| 2 Jul | 49.4 | Ordained Bishop | Girolamo Curlo, C.R.M. † | Bishop of Aleria, France |
| 51.0 | Ordained Bishop | José Cayetano Paravicino, O.F.M. † | Bishop of Paraguay (o Ssma Assunzione) | Bishop of Trujillo, Peru |
| Born | Piotr Aleksander Samson Toczyłowski † | | Auxiliary Bishop of Vilnius, Lithuania |
| 3 Jul | 69.5 | Appointed | Eugénio Boto da Silva † | Auxiliary Bishop of Braga, Portugal |
| 69.5 | Appointed | Eugénio Boto da Silva † | Titular Bishop of Etalonia (Hetalonia) | Auxiliary Bishop of Braga, Portugal |
| 46.1 | Confirmed | Salvator Angelo Cadello † | Bishop of Ampurias e Civita, Italy |
| 44.3 | Confirmed | Bonifatius (Giovanni Giuseppe) Cecchotti, O.F.M. Ref. † | Bishop of Pedena, Austria |
| 61.7 | Appointed | Aloysius Foscari † | Patriarch of Venezia {Venice}, Italy |
| 45.0 | Appointed | Ferdinando Mandarini † | Bishop of Strongoli, Italy | Bishop of Oppido Mamertina, Italy |
| 43.5 | Appointed | José Morales Blanco † | Bishop of Palencia, Spain |
| 45.5 | Appointed | Francesco Maria Piccolomini † | Bishop of Pienza, Italy | Bishop Emeritus |
| 36.7 | Confirmed | Vincenzo Giovanni Vico Torrellas † | Archbishop of Oristano, Italy |
| 58.1 | Confirmed | Angelo Maria (Jean Luc) Volanti, O.P. † | Bishop of Stagno (Ston), Croatia |
| 5 Jul | | Born | [Antoine Bouchier] † | | Bishop of [Dordogne (Constitutional), France] |
| 9 Jul | 45.1 | Ordained Bishop | Ferdinando Mandarini † | Bishop of Strongoli, Italy | Bishop of Oppido Mamertina, Italy |
| 45.5 | Ordained Bishop | Francesco Maria Piccolomini † | Bishop of Pienza, Italy | Bishop Emeritus |
| 58.2 | Ordained Bishop | Angelo Maria (Jean Luc) Volanti, O.P. † | Bishop of Stagno (Ston), Croatia |
| 24.5 | Ordained Priest | Tomasz Ignacy Zienkowicz † | Priest | Auxiliary Bishop Emeritus of Vilnius, Lithuania |
| 12 Jul | | Born | Vicente Navas y Márquez, O.P. † | | Bishop of Comayagua, Honduras |
| 16 Jul | 83.5 | Died | Henri de Briqueville de La Luzerne † | Bishop of Cahors, France |
| Born | Vincenzo Calà † | | Archbishop of Sorrento, Italy |
| 21 Jul | 65.5 | Died | João de Faro, O.F.M. Ref. † | Bishop of Santiago de Cabo Verde |
| 23 Jul | 53.0 | Installed | Domenico Antonio Brizi † | Bishop of Marsi, Italy |
| 35.0 | Ordained Bishop | Joachim-Enjobert de Martiliat, M.E.P. † | Titular Bishop of Echinus | Vicar Apostolic of Se-Ciuen (Setchoan, Szechwan, Sichuan), China |
| 26 Jul | 60.0 | Died | Jakob Maximilian von Thun und Hohenstein † | Bishop of Gurk, Austria |
| 28 Jul | | Born | Ignacy Jan Zygmunt von Raczyński † | | Archbishop Emeritus of Gniezno, Poland |
| 30 Jul | 24.0 | Ordained Priest | Francesco Maria Colombani † | Priest | Bishop of Bertinoro, Italy |
| 86.7 | Died | Francesco Federico Giordani † | Titular Archbishop of Melitene |
| 3 Aug | 70.1 | Died | Lorenzo Altieri † | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
| 5 Aug | | Born | Marie-Anne-Hippolyte Hay de Bonteville † | | Bishop of Grenoble, France |
| 7 Aug | 39.5 | Appointed | José Alcaraz y Belluga † | Bishop of Tarazona, Spain | Bishop Emeritus |
| 75.3 | Died | Joseph (a Jesu Maria) Fonseca, O.P. † | Auxiliary Bishop of Évora, Portugal |
| 37.0 | Confirmed | Józef Antoni Łaszcz † | Coadjutor Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| 59.5 | Confirmed | Miguel Bernardino de la Fuenta y Rojas † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 74.4 | Appointed | Carlo Maria Marini † | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
| 52.5 | Appointed | Andrea de Rossi, C.R. † | Titular Bishop of Patara |
| 55.4 | Confirmed | Andrés Vergara Uribe † | Bishop of Santa Cruz de la Sierra, Bolivia |
| 8 Aug | 25.1 | Ordained Priest | Charles Nicolas Alexandre d’Oultremont † | Priest | Bishop of Liège, Belgium |
| 10 Aug | 54.6 | Ordained Bishop | William Laurence York, O.S.B. † | Titular Bishop of Nebbi | Vicar Apostolic Emeritus of Western District, England, Great Britain |
| 11 Aug | | Born | José da Costa e Torres † | | Archbishop of Braga, Portugal |
| 78.1 | Died | François Louis Sanguessa, O.F.M. Rec. † | Bishop of Roermond, Netherlands |
| 19 Aug | | Born | Szczepan Hołowczyc † | | Archbishop of Warszawa {Warsaw}, Poland |
| 20 Aug | 38.0 | Selected | Christophe de Beaumont du Repaire † | Bishop of Bayonne, France | Archbishop of Paris, France |
| 37.9 | Selected | Bertrand-Jean-Baptiste-René du Guesclin † | Bishop of Cahors, France |
| 43.3 | Selected | Jacques-Bonne Gigault de Bellefonds † | Archbishop of Arles, France | Archbishop of Paris, France |
| 39.0 | Selected | Henri-Gaston de Lévis-Léran † | Bishop of Pamiers, France |
| 44.1 | Installed | Francisco Pablo Matos y Coronado † | Bishop of Michoacán, México |
| 33.0 | Selected | Jean-Baptiste-Joseph de Méallet de Fargues † | Bishop of Saint-Claude, France |
| 81.6 | Died | Gregorio Téllez, O.F.M. Conv. † | Bishop Emeritus of Ciudad Rodrigo, Spain |
| 21 Aug | | Born | [Jean-Marie Jacob] † | | Bishop of [Côtes-du-Nord (Constitutional), France] |
| 22 Aug | 40.8 | Died | Daniel-Joseph de Cosnac † | Bishop of Die, France |
| 27 Aug | 51.6 | Ordained Bishop | José Ignacio Mijares Solórzano y Tobar † | Bishop of Santa Marta, Colombia |
| 30 Aug | 33.6 | Installed | Henri-Marie du Breuil de Pontbriand † | Bishop of Québec, Canada |