| Date | Age | Event | Bishop | Title | Current Title |
| 1 Jul | | Born | Jean-Joseph Audemar † | | Coadjutor Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| 2 Jul | | Born | Ambrosi de Magistris † | | Auxiliary Bishop of Napoli {Naples}, Italy |
| 3 Jul | 66.8 | Ordained Bishop | António de Sousa Tavora, O.E.S.A. † | Bishop of Porto, Portugal |
| 4 Jul | 26.5 | Ordained Priest | Ignace Michel III Djarwé (Jarweh) † | Priest | Patriarch of Antiochia {Antioch} (Syrian), Lebanon |
| 5 Jul | 39.1 | Selected | Raymund Anton von Strasoldo † | Bishop of Eichstätt, Germany |
| 7 Jul | | Born | Miguel Sánchez Cerrudo, O.F.M. Obs. † | | Bishop of Santa Marta, Colombia |
| 17 Jul | | Born | Juan Alejo de Arizmendi de la Torre † | | Bishop of Puerto Rico (Porto Rico) |
| 18 Jul | 44.5 | Confirmed | Antoine-Joseph D’Amat de Volx † | Bishop of Senez, France |
| 50.5 | Confirmed | Jacques Le Févre du Quesnoy † | Bishop of Coutances, France |
| 55.7 | Appointed | Miguel Lino de Ezpeleta † | Bishop of Cebu, Philippines |
| 63.7 | Appointed | Arcangelo Lupi, O.P. † | Archbishop of Dubrovnik (Ragusa), Croatia |
| 49.1 | Appointed | Giuseppe Tomaso de Rossi † | Bishop of Alessandria (della Paglia), Italy |
| 31.4 | Confirmed | Giuseppe Maria Scarampi † | Bishop of Vigevano, Italy |
| 45.9 | Confirmed | Giovanni Filippo Antonio San Martino † | Bishop of Asti, Italy |
| 40.8 | Appointed | Alonso de Solís Marroquín y Gragera, O.S. † | Titular Bishop of Geras | Bishop of Badajoz, Spain |
| 19 Jul | | Born | Francesco Vincenzo Lombard † | | Bishop of Susa, Italy |
| 20 Jul | 76.5 | Died | Gabriel de Torres y Navarra † | Titular Archbishop-Elect of Melitene |
| 24 Jul | 63.8 | Ordained Bishop | Arcangelo Lupi, O.P. † | Archbishop of Dubrovnik (Ragusa), Croatia |
| 40.8 | Ordained Bishop | Alonso de Solís Marroquín y Gragera, O.S. † | Titular Bishop of Geras | Bishop of Badajoz, Spain |
| 25 Jul | 52.5 | Ordained Bishop | Manuel Antonio de la Torre † | Bishop of Paraguay (o Ssma Assunzione) | Bishop of Buenos Aires, Argentina |
| 49.1 | Ordained Bishop | Giuseppe Tomaso de Rossi † | Bishop of Alessandria (della Paglia), Italy |
| 31.4 | Ordained Bishop | Giuseppe Maria Scarampi † | Bishop of Vigevano, Italy |
| 45.9 | Ordained Bishop | Giovanni Filippo Antonio San Martino † | Bishop of Asti, Italy |
| 26 Jul | 59.8 | Died | Marco Antonio Zoglio (Zollius) † | Bishop of Rimini, Italy |
| 30 Jul | 68.8 | Died | Baltazar de Faria Villas-Boas † | Bishop of Elvas, Portugal |
| 31 Jul | 43.8 | Ordained Bishop | Toussaint Duvernin † | Titular Bishop of Arad | Auxiliary Bishop of Strasbourg, France |
| 23.8 | Ordained Deacon | Józef Michał Ignacy Franciszek Olędzki, Sch. P. † | Deacon of Order of the Pious Schools | Auxiliary Bishop Emeritus of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| 3 Aug | | Born | Tommaso Gallarati Scotti † | | Auxiliary Bishop of Milano {Milan}, Italy |
| 7 Aug | 33.1 | Ordained Bishop | Carlo Giuseppe Filippa della Martiniana † | Bishop of Saint-Jean-de-Maurienne, France | Cardinal, Bishop of Vercelli, Italy |
| 10 Aug | 30.2 | Ordained Priest | Marco Giuseppe Cornaro (Corner) † | Priest | Bishop of Vicenza, Italy |
| 23.8 | Ordained Priest | Józef Michał Ignacy Franciszek Olędzki, Sch. P. † | Priest of Order of the Pious Schools | Auxiliary Bishop Emeritus of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| 11 Aug | | Born | Louis Belmas † | | Bishop of Cambrai, France |
| 82.8 | Died | Francesco Caracciolo, O.F.M. Obs. † | Bishop of Sessa Aurunca, Italy |
| 13 Aug | | Born | Pietro Balducci, C.M. † | | Bishop of Fabriano e Matelica, Italy |
| 34.6 | Appointed | Santiago Hernández, O.P. † | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 34.6 | Appointed | Santiago Hernández, O.P. † | Titular Bishop of Hierocaesarea | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 15 Aug | 25.6 | Ordained Priest | James Caulfield † | Priest of Ferns, Ireland | Bishop |
| 38.6 | Selected | Georges-Louis Phélypeaux d’Herbault † | Archbishop of Bourges, France |
| 19 Aug | 52.0 | Ordained Bishop | Manuel Macías Pedrejón † | Bishop of Lérida, Spain |
| 21 Aug | | Born | João Joaquim Bernardino de Brito † | | Bishop of Funchal, Portugal |
| 50.6 | Ordained Bishop | Jacques Le Févre du Quesnoy † | Bishop of Coutances, France |
| 24 Aug | 43.9 | Ordained Bishop | Pierre Brigot, M.E.P. † | Titular Bishop of Thabraca | Superior of Karnatic Mission / Pondicherry, India |
| 26 Aug | 58.8 | Died | Emmanuel-Henri-Timoléon de Cossé-Brissac † | Bishop of Condom, France |
| 27 Aug | | Born | Girolano Manieri † | | Bishop of L’Aquila, Italy |
| 28 Aug | 23.2 | Ordained Priest | Francesco Antonio Duca † | Priest | Bishop of Castro di Puglia, Italy |
| 4 Sep | 66.6 | Succeeded | James Butler (1st) † | Archbishop of Cashel (-Emly), Ireland |
| 84.6 | Died | Christopher Butler † | Archbishop of Cashel (-Emly), Ireland |
| 6 Sep | 74.0 | Died | Joseph-Dominique (Malachias) d’Inguimbert, O. Cist. † | Bishop of Carpentras, France |
| 10 Sep | 75.1 | Died | Johann Wilhelm von Twickel † | Auxiliary Bishop of Hildesheim, Germany |
| 14 Sep | 26.5 | Ordained Deacon | Antoni Maciej Sierakowski † | Deacon | Bishop of Inflanty (Livonia)-Pilten, Poland |
| 17 Sep | 18.6 | Professed | Francisco Gomes de Avelar, C.O. † | Member of Confederation of Oratorians of St. Philip Neri | Bishop of Faro {Algarve}, Portugal |
| 35.9 | Died | Domenico Gaetano Novellucci † | Bishop of Colle di Val d’Elsa, Italy |
| 18 Sep | 44.7 | Ordained Bishop | Antoine-Joseph D’Amat de Volx † | Bishop of Senez, France |
| 34.7 | Ordained Bishop | Santiago Hernández, O.P. † | Titular Bishop of Hierocaesarea | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 22 Sep | | Born | Giovanni Francesco Compagnoni Marefoschi † | | Apostolic Nuncio to Portugal |
| 23 Sep | | Born | Albertino Philippe Laurent Marie Bellenghi, O.S.B. † | | Titular Archbishop of Nicosia |
| 24 Sep | 22.8 | Ordained Priest | Giuseppe Bertieri, O.A.D. † | Priest of Agostiniani Scalzi | Bishop of Pavia, Italy |
| 22.5 | Ordained Deacon | Diego Gregorio Cadello † | Deacon of Cagliari, Italy | Cardinal, Archbishop |
| 24.0 | Ordained Priest | Antonio Cresi † | Priest | Bishop of Ortona a Mare e Campli, Italy |
| 24.1 | Ordained Priest | Gianantonio Della Beretta † | Priest | Bishop of Lodi, Italy |
| 22.9 | Ordained Priest | Angelo Franceschi † | Priest | Archbishop of Pisa, Italy |
| 24.3 | Ordained Deacon | Ignác Nagy de Séllye † | Deacon of Székesfehérvár (Albareale), Hungary | Bishop |
| 26 Sep | 61.9 | Appointed | Francisco Borrull Ramón † | Bishop of Tortosa, Spain |
| 38.0 | Appointed | Matías José de Navia Bolaños y Moscoso, O.E.S.A. † | Bishop of Nicaragua |
| 40.0 | Appointed | Onofrio de Rossi † | Bishop of Fondi (Fundi), Italy | Bishop of Sant’Agata de’ Goti, Italy |
| 61.3 | Confirmed | Pál Štefan Forgách † | Bishop of Vác, Hungary |
| 56.6 | Appointed | Francesco Antonio Granata † | Bishop of Sessa Aurunca, Italy |
| 44.9 | Appointed | Juan Lario y Lancis † | Auxiliary Bishop of Zaragoza, Spain | Archbishop of Tarragona, Spain |
| 44.9 | Appointed | Juan Lario y Lancis † | Titular Bishop of Lete | Archbishop of Tarragona, Spain |
| 42.0 | Appointed | Erasmo Mastrilli, O.S.B. † | Bishop of Isernia, Italy |
| 38.7 | Confirmed | Georges-Louis Phélypeaux d’Herbault † | Archbishop of Bourges, France |
| 50.2 | Appointed | Francisco José Rodríguez Chico † | Bishop of Teruel, Spain |
| 60.7 | Appointed | Pedro Anselmo Sánchez de Tagle † | Bishop of Michoacán, México |
| 39.4 | Confirmed | Raymund Anton von Strasoldo † | Bishop of Eichstätt, Germany |
| 47.9 | Appointed | Konstantin Schütz von Holzhausen, O.S.B. † | Auxiliary Bishop of Fulda, Germany |
| 47.9 | Appointed | Konstantin Schütz von Holzhausen, O.S.B. † | Titular Bishop of Mennith | Auxiliary Bishop of Fulda, Germany |
| 29 Sep | 26.5 | Ordained Priest | Antoni Maciej Sierakowski † | Priest | Bishop of Inflanty (Livonia)-Pilten, Poland |
| 30 Sep | 57.8 | Died | Pellegrino Ferri † | Bishop of Adria, Italy |
| Born | Michele Palmieri † | | Bishop of Monopoli, Italy |
| 2 Oct | 61.9 | Ordained Bishop | Francisco Borrull Ramón † | Bishop of Tortosa, Spain |
| 40.1 | Ordained Bishop | Onofrio de Rossi † | Bishop of Fondi (Fundi), Italy | Bishop of Sant’Agata de’ Goti, Italy |
| 56.6 | Ordained Bishop | Francesco Antonio Granata † | Bishop of Sessa Aurunca, Italy |
| 42.0 | Ordained Bishop | Erasmo Mastrilli, O.S.B. † | Bishop of Isernia, Italy |
| 5 Oct | | Born | Giovanni Fortunato Paternò † | | Auxiliary Bishop of Catania, Italy |
| 8 Oct | 32.8 | Selected | Louis-Joseph de Montmorency-Laval † | Bishop of Condom, France | Cardinal, Bishop of Metz, France |
| 11 Oct | 67.4 | Died | Pedro Fernández Velarde † | Bishop of Segorbe, Spain |
| 15 Oct | 41.0 | Selected | Gaspar de Bragança † | Archbishop of Braga, Portugal |
| Born | Teresio Maria Carlo Vittorio Ferrero della Marmora † | | Cardinal, Bishop Emeritus of Saluzzo, Italy |
| 65.1 | Selected | Aleixo de Miranda Henriques, O.P. † | Bishop of Miranda (do Douro), Portugal | Bishop of Porto, Portugal |
| 18 Oct | 22.3 | Ordained Deacon | Antoni Narzymski † | Deacon | Auxiliary Bishop of Płock, Poland |
| 22 Oct | 66.2 | Selected | Bartolomé Rull, O.S.Io.Hieros. † | Bishop of Malta |
| 23 Oct | 89.0 | Died | Cherubino Tommaso Nobilione, O.P. † | Bishop Emeritus of Andria, Italy |
| 25 Oct | | Born | Lorenzo Gómez Haedo † | | Bishop of Segorbe, Spain |
| Born | Felipe Antonio (Juan José) Pérez del Notario † | | Bishop-Elect of Nicaragua |
| 29 Oct | | Born | [Guillaume Mauviel] † | | Bishop Emeritus of [Saint-Domingue-Sud (Constitutional), Haïti] |
| 1 Nov | 22.9 | Ordained Priest | Nicolò Rossetti † | Priest | Bishop of Boiano, Italy |
| 6 Nov | 56.8 | Ordained Bishop | Pedro Martínez de Oneca † | Bishop of Puerto Rico (Porto Rico) |
| 48.0 | Ordained Bishop | Konstantin Schütz von Holzhausen, O.S.B. † | Titular Bishop of Mennith | Auxiliary Bishop of Fulda, Germany |
| 13 Nov | 50.3 | Ordained Bishop | Francisco José Rodríguez Chico † | Bishop of Teruel, Spain |
| 16 Nov | 62.4 | Died | Giovanni Giacomo Millo † | Cardinal, Prefect of the Congregation of the Council |
| 17 Nov | 65.5 | Succeeded | Francisco Xavier Aranha † | Bishop of Olinda, Brazil |
| 23.3 | Ordained Priest | Franciszek Ksawery Rydzyński † | Priest of Poznań, Poland | Bishop of Chelmno (Culma, Kulm), Poland |
| 65.6 | Died | Luiz de Santa Teresa da Cruz Salgado de Castilho, O.C.D. † | Bishop of Olinda, Brazil |
| 18 Nov | | Born | Carlo Francesco Carnevale † | | Bishop of Tortona, Italy |
| 66.8 | Died | François de Serret de Gaujac † | Bishop of Aire, France |
| Born | Konstantin Stanić † | | Bishop of Križevci (Kreutz) (Križevci), Croatia |
| 19 Nov | 36.3 | Selected | Salvatore Ventimiglia, C.O. † | Bishop of Catania, Italy | Bishop Emeritus |
| 20 Nov | | Born | Antoine-Xavier de Neirac † | | Bishop of Tarbes, France |
| 38.8 | Ordained Bishop | Georges-Louis Phélypeaux d’Herbault † | Archbishop of Bourges, France |
| 21 Nov | | Born | Pellegrino Maria Carletti † | | Bishop of Montepulciano, Italy |
| 25 Nov | | Born | Juan Francisco Martínez y Castrillón † | | Bishop of Málaga, Spain |
| 26 Nov | | Born | Giuseppe Menditto † | | Auxiliary Bishop of Capua, Italy |
| 27 Nov | 63.9 | Died | Mikołaj Dembowski † | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine |
| 30 Nov | 47.7 | Ordained Bishop | Joannes Dominicus (Michael Antonius) Chiavassa, O.C.D. † | Titular Bishop of Assuras | Vicar Apostolic of Great Mogul (Mughals), India |
| Dec | 69.9 | Appointed | Clemente Argenvillieres † | Cardinal, Prefect of the Congregation of the Council |
| 45.1 | Appointed | Dominique de La Rochefoucauld † | Abbot of Cluny, France | Cardinal, Archbishop of Rouen, France |
| 1 Dec | | Born | József Bélik † | | Bishop of Spiš, Slovakia |
| 54.0 | Selected | Władysław Aleksander Łubieński † | Archbishop of Lviv, Ukraine | Archbishop of Gniezno, Poland |
| 5 Dec | 62.9 | Died | Ermest Amadeus Thomas von Attems † | Bishop of Ljubljana (Laybach; Laibach), Slovenia |
| Born | [Joseph Perbost] † | | Bishop |
| 8 Dec | 66.8 | Died | Placido Pezzancheri, O. Cist. † | Bishop of Tivoli, Italy |
| 10 Dec | | Born | Pietro Carlo Ciani † | | Bishop of Concordia (Sagittaria), Italy |
| 11 Dec | 38.2 | Ordained Bishop | Matías José de Navia Bolaños y Moscoso, O.E.S.A. † | Bishop of Nicaragua |
| 45.1 | Ordained Bishop | Juan Lario y Lancis † | Titular Bishop of Lete | Archbishop of Tarragona, Spain |
| 17 Dec | 31.4 | Ordained Priest | Juan Díaz de La Guerra † | Priest | Bishop of Sigüenza, Spain |
| 24.0 | Ordained Priest | Francesco Giliberti † | Priest | Titular Bishop of Pompeiopolis in Cilicia |
| 24.6 | Ordained Priest | Ignác Nagy de Séllye † | Priest of Székesfehérvár (Albareale), Hungary | Bishop |
| 22.2 | Ordained Deacon | János Szily † | Deacon of Győr (Raab), Hungary | Bishop of Szombathely, Hungary |
| 18 Dec | 22.8 | Ordained Priest | Pavel Josef Seddeler † | Priest of Praha {Prague}, Czechia | Auxiliary Bishop |
| 19 Dec | 56.1 | Appointed | Pedro Antonio de Barroeta Angel † | Archbishop of Granada, Spain |
| 48.6 | Appointed | Francisco Alejandro Bocanegra Jivaja † | Bishop of Guadix, Spain | Archbishop of Santiago de Compostela, Spain |
| 57.3 | Appointed | Giuseppe Maria Fogliani † | Bishop of Modena, Italy |
| 47.7 | Appointed | Francesco Maria Forlani † | Bishop of San Severino (Marche), Italy | Bishop of Civita Castellana e Orte, Italy |
| 66.5 | Appointed | Vincenzo Maria de Francisco e Galletti, O.P. † | Titular Archbishop of Tamiathis | Bishop of Lipari, Italy |
| 42.9 | Appointed | Nicolas de La Pinte de Livry, O. Praem. † | Titular Bishop of Callinicum | Auxiliary Bishop Emeritus of Mâcon, France |
| 55.0 | Appointed | Giulio Matteo Natali † | Auxiliary Bishop of Sabina, Italy | Bishop of Tivoli, Italy |
| 55.0 | Appointed | Giulio Matteo Natali † | Titular Bishop of Abdera | Bishop of Tivoli, Italy |
| 49.2 | Appointed | Manuel Antonio Rojo del Rio Lafuente y Veiyra † | Archbishop of Manila, Philippines |
| 66.3 | Confirmed | Bartolomé Rull, O.S.Io.Hieros. † | Bishop of Malta |
| 70.4 | Appointed | Onésimo Salamanca Zaldívar † | Archbishop of Burgos, Spain |
| 59.2 | Appointed | Giovanni Battista Stella † | Bishop of Rimini, Italy |
| 61.0 | Appointed | Pedro Tamarón y Romeral † | Bishop of Durango, México |
| 36.4 | Confirmed | Salvatore Ventimiglia, C.O. † | Bishop of Catania, Italy | Bishop Emeritus |
| 33.9 | Appointed | Vencentius de Via † | Coadjutor Bishop of Tinos and Mykonos, Greece | Bishop |
| 33.9 | Appointed | Vencentius de Via † | Titular Bishop of Ruspae | Bishop of Tinos and Mykonos, Greece |
| 47.3 | Appointed | Giuseppe de Vignoli † | Bishop of Carpentras, France | Bishop of Forli, Italy |
| 21 Dec | 38.9 | Ordained Bishop | Giacinto Archiopoli † | Titular Bishop of Callipolis |
| 27 Dec | 57.4 | Ordained Bishop | Giuseppe Maria Fogliani † | Bishop of Modena, Italy |
| 55.0 | Ordained Bishop | Giulio Matteo Natali † | Titular Bishop of Abdera | Bishop of Tivoli, Italy |
| 59.2 | Ordained Bishop | Giovanni Battista Stella † | Bishop of Rimini, Italy |
| 36.4 | Ordained Bishop | Salvatore Ventimiglia, C.O. † | Bishop of Catania, Italy | Bishop Emeritus |
| 31 Dec | | Born | Pierre-François-Gabriel-Raymond-Ignace-Ferdinand de Bausset-Roquefort † | | Archbishop of Aix (-Arles-Embrun), France |