| Date | Age | Event | Bishop | Title | Current Title |
| 5 Jul | 46.5 | Ordained Bishop | Carlo Francesco Durini † | Titular Archbishop of Rhodus | Cardinal, Bishop of Pavia, Italy |
| 58.7 | Ordained Bishop | Antonio Guglielmi † | Archbishop of Urbino, Italy |
| 6 Jul | | Died | Emmanuel de Jesus-Maria-Joseph, O.F.M. † | Bishop of Nanking [Nanjing], China |
| Born | Carlo Giuseppe Pistone † | Nizza di Monferrato | Bishop of Alessandria (della Paglia), Italy |
| 8 Jul | 73.7 | Died | Carlo Colonna † | Cardinal, Cardinal-Deacon of Sant’Agata de’ Goti |
| 9 Jul | | Born | Anton Ferdinand von Rothkirch und Panthen † | Hönnigsdorf | Auxiliary Bishop of Wrocław (Breslau), Poland |
| 14 Jul | 44.7 | Appointed | Marcello Crescenzi † | Titular Archbishop of Nazianzus | Cardinal, Archbishop of Ferrara, Italy |
| 15 Jul | 74.9 | Elevated to Cardinal | Marcellino Corio † | Cardinal, Cardinal-Deacon of Sant’Adriano al Foro |
| 39.8 | Appointed | Giacomo Costa, C.R. † | Bishop of Ripatransone, Italy | Bishop of Belluno, Italy |
| 40.9 | Appointed | Adam Stanisław Grabowski † | Bishop of Włocławek (Kujawy, Kalisze), Poland | Bishop of Warmia (Ermland), Poland |
| 54.6 | Appointed | Francesco Antonio Leonardis † | Bishop of Bisceglie, Italy |
| 72.3 | Appointed | Carlo Maria Marini † | Cardinal-Deacon of Sant’Agata de’ Goti | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
| 38.9 | Appointed | Bernardo Onorato Buonocore † | Bishop of Trevico, Italy |
| 43.2 | Appointed | Cesare Rossi † | Bishop of Montepeloso, Italy | Bishop of Gerace, Italy |
| 18 Jul | 69.2 | Died | Gennaro Scalea † | Bishop of San Severo, Italy |
| 19 Jul | 39.8 | Ordained Bishop | Giacomo Costa, C.R. † | Bishop of Ripatransone, Italy | Bishop of Belluno, Italy |
| 22.9 | Ordained Priest | Alexander Fé † | Priest | Titular Bishop of Methone |
| 38.9 | Ordained Bishop | Bernardo Onorato Buonocore † | Bishop of Trevico, Italy |
| 43.2 | Ordained Bishop | Cesare Rossi † | Bishop of Montepeloso, Italy | Bishop of Gerace, Italy |
| 20 Jul | 31.0 | Appointed | Franz Karl Joseph von Fugger-Glött † | Auxiliary Bishop of Konstanz {Constance}, Germany | Auxiliary Bishop Emeritus |
| 31.0 | Appointed | Franz Karl Joseph von Fugger-Glött † | Titular Bishop of Domitiopolis | Auxiliary Bishop Emeritus of Konstanz {Constance}, Germany |
| 58.9 | Installed | Pierre-Guérin de Tencin † | Cardinal-Priest of Santi Nereo ed Achilleo | Cardinal, Archbishop of Lyon, France |
| 28.1 | Confirmed | François-Louis Pourroy de L’Auberivière † | Bishop of Québec, Canada |
| 43.0 | Appointed | Ferdinando Maria de Rossi † | Titular Archbishop of Tarsus | Cardinal, Prefect of the Congregation of the Council |
| 39.2 | Appointed | Hieronim Antoni Szeptycki † | Auxiliary Bishop of Lutsk (Łuck), Ukraine | Bishop of Płock, Poland |
| 39.2 | Appointed | Hieronim Antoni Szeptycki † | Titular Bishop of Saldae | Bishop of Płock, Poland |
| 47.6 | Appointed | Antoni Dominik Tyszkiewicz † | Titular Bishop of Mennith | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 43.6 | Confirmed | Andrzej Stanisław Załuski † | Bishop of Chelmno (Culma, Kulm), Poland | Bishop of Kraków, Poland |
| 23 Jul | | Died | Peter Mulligan, O.S.A. † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 25 Jul | 47.6 | Ordained Bishop | Paolo Cernuschi † | Bishop of Como, Italy |
| 26 Jul | | Selected | Patrick MacDonogh † | Bishop of Killaloe, Ireland |
| 28 Jul | | Born | Pietro Fedele Grisolia † | Mormanno | Archbishop of Santa Severina, Italy |
| 29 Jul | | Born | Niccolò Marcacci † | San Cassiano | Bishop of Arezzo, Italy |
| 1 Aug | | Born | Girolamo Pavesi † | Pontremoli | Bishop of Pontremoli, Italy |
| 2 Aug | | Ordained Bishop | Cayetano Benítez de Lugo, O.P. † | Bishop of Zamora, Spain |
| 71.6 | Died | Carolus Ludovicus Hugo, O. Praem. † | Titular Bishop of Ptolemais in Phoenicia |
| 43.0 | Ordained Bishop | Ferdinando Maria de Rossi † | Titular Archbishop of Tarsus | Cardinal, Prefect of the Congregation of the Council |
| 4 Aug | 74.7 | Died | Réné-François Beauvau de Rivau † | Archbishop of Narbonne, France |
| 73.3 | Died | Jaime de Mimbela, O.P. † | Bishop of Trujillo, Peru |
| 9 Aug | 44.6 | Ordained Bishop | Claude de Chabannes (Cabannes) † | Bishop of Gap, France |
| 10 Aug | 44.8 | Ordained Bishop | Marcello Crescenzi † | Titular Archbishop of Nazianzus | Cardinal, Archbishop of Ferrara, Italy |
| 11 Aug | | Born | Santiago Pérez Arenillas † | Becerril de Campos | Bishop of Gerona, Spain |
| 12 Aug | | Born | Agostino Adriani † | Napoli | Bishop of Mottola (Motula), Italy |
| 13 Aug | | Appointed | Walter Blake † | Bishop of Achonry, Ireland |
| 14 Aug | | Confirmed | Patrick MacDonogh † | Bishop of Killaloe, Ireland |
| 15 Aug | 30.7 | Ordained Priest | Antonius Biglia † | Priest | Titular Archbishop of Corinthus |
| 16 Aug | 40.9 | Ordained Deacon | Ignazio Michele Crivelli † | Deacon | Cardinal, Titular Archbishop of Caesarea in Cappadocia |
| 28.2 | Ordained Bishop | François-Louis Pourroy de L’Auberivière † | Bishop of Québec, Canada |
| 18 Aug | 82.5 | Died | Juan Álvaro Cienfuegos Villazón, S.J. † | Cardinal, Archbishop Emeritus of Monreale, Italy |
| 26 Aug | | Appointed | Thomas O’Beirne † | Coadjutor Bishop of Ardagh (and Clonmacnois), Ireland | Bishop |
| Appointed | Thomas O’Beirne † | Titular Bishop of Marmarizana | Bishop of Ardagh (and Clonmacnois), Ireland |
| 30 Aug | 55.7 | Selected | Jean-Louis Berton des Balbes de Crillon † | Archbishop of Narbonne, France |
| 40.9 | Ordained Priest | Ignazio Michele Crivelli † | Priest | Cardinal, Titular Archbishop of Caesarea in Cappadocia |
| 31.1 | Ordained Bishop | Franz Karl Joseph von Fugger-Glött † | Titular Bishop of Domitiopolis | Auxiliary Bishop Emeritus of Konstanz {Constance}, Germany |
| Sep | 65.2 | Died | Pietro Carlo Benedetti † | Bishop of Spoleto, Italy |
| 4 Sep | | Died | Cayetano Benítez de Lugo, O.P. † | Bishop of Zamora, Spain |
| 26.7 | Ordained Priest | Nicolau Joaquim Torel da Cunha Manuel † | Priest | Bishop of Lamego, Portugal |
| 5 Sep | | Born | Vincentius Greco † | Cotronen | Bishop of Belcastro, Italy |
| 64.2 | Died | Benjamin de L’Isle du Gast † | Bishop of Limoges, France |
| 6 Sep | 27.9 | Ordained Priest | Giulio Cesare Gandolfi † | Priest | Archbishop of Cagliari, Italy |
| 12 Sep | 48.0 | Appointed | Richard Challoner † | Coadjutor Vicar Apostolic of London District, England, Great Britain | Vicar Apostolic |
| 48.0 | Appointed | Richard Challoner † | Titular Bishop of Doberus | Vicar Apostolic of London District, England, Great Britain |
| 19 Sep | 23.1 | Ordained Priest | Wilhelm von Alhaus, O.S.C. † | Priest of Canons Regular of the Order of the Holy Cross | Auxiliary Bishop of Münster, Germany |
| Succeeded | Thomas O’Beirne † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 23 Sep | | Ordained Bishop | Michael O’Reilly † | Bishop of Derry, Ireland | Archbishop of Armagh, Ireland |
| 25 Sep | 82.3 | Died | Vincent-François des Maretz † | Bishop of Saint-Malo, France |
| 27 Sep | 58.7 | Died | Adalbertus von Falkenstein, O.S.B. † | Bishop of Csanád, Hungary |
| 28 Sep | | Born | Klemens Wenzeslaus von Sachsen † | Hubertusburg | Bishop of Augsburg, Germany |
| 30 Sep | 40.9 | Appointed | Alberico Archinto † | Titular Archbishop of Nicaea | Cardinal, Cardinal-Priest of San Lorenzo in Damaso |
| 37.7 | Appointed | Jean de Brunet de Pujols de Castelpers de Panat † | Auxiliary Bishop of Albi, France |
| 37.7 | Appointed | Jean de Brunet de Pujols de Castelpers de Panat † | Titular Bishop of Euroea in Epiro | Auxiliary Bishop of Albi, France |
| 76.8 | Elevated to Cardinal | Prospero Colonna † | Cardinal, Cardinal-Deacon of Sant’Angelo in Pescheria |
| 75.1 | Installed | Marcellino Corio † | Cardinal, Cardinal-Deacon of Sant’Adriano al Foro |
| 41.0 | Appointed | Ignazio Michele Crivelli † | Cardinal, Titular Archbishop of Caesarea in Cappadocia |
| 33.3 | Appointed | Augustin-François-Annibal de Farcy de Cuillé † | Bishop of Quimper, France |
| 53.7 | Appointed | Juan Francisco Guillén † | Bishop of Islas Canarias {Canary Islands}, Spain | Archbishop of Burgos, Spain |
| 60.0 | Appointed | Franciszek Antoni Kobielski † | Bishop of Lutsk (Łuck), Ukraine |
| 50.1 | Elevated to Cardinal | Carlo Maria Sacripante † | Cardinal, Cardinal-Bishop of Frascati |
| 2 Oct | 33.3 | Appointed | Joachim-Enjobert de Martiliat, M.E.P. † | Vicar Apostolic of Yunnan, China | Vicar Apostolic of Se-Ciuen (Setchoan), China |
| 33.3 | Appointed | Joachim-Enjobert de Martiliat, M.E.P. † | Titular Bishop of Echinus | Vicar Apostolic of Se-Ciuen (Setchoan), China |
| 40.5 | Appointed | Eugenio Piloti, O.F.M. † | Coadjutor Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China | Vicar Apostolic |
| 40.5 | Appointed | Eugenio Piloti, O.F.M. † | Titular Bishop of Porthmus | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China |
| 3 Oct | | Ordained Bishop | Louis Marie Maggi, O.P. † | Titular Bishop of Baris in Hellesponto | Vicar Apostolic of Se-Ciuen (Setchoan), China |
| 4 Oct | 41.0 | Ordained Bishop | Ignazio Michele Crivelli † | Cardinal, Titular Archbishop of Caesarea in Cappadocia |
| 11 Oct | 73.6 | Appointed | Johann Franz Riccius † | Auxiliary Bishop of Strasbourg, France |
| 73.6 | Appointed | Johann Franz Riccius † | Titular Bishop of Verinopolis | Auxiliary Bishop of Strasbourg, France |
| 39.4 | Ordained Bishop | Hieronim Antoni Szeptycki † | Titular Bishop of Saldae | Bishop of Płock, Poland |
| 47.8 | Ordained Bishop | Antoni Dominik Tyszkiewicz † | Titular Bishop of Mennith | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 14 Oct | | Born | Ioan (Janos) Bob (Babb) † | orman | Bishop of Făgăraş (Romanian), Romania |
| 30.8 | Appointed | Antoine de Lastic † | Bishop of (Saint-Bernard de) Comminges, France | Bishop of Chalons-sur-Marne, France |
| 15 Oct | | Born | Francisco Porró y Reinado † | Gibraltar, Spain | Bishop of Tarazona, Spain |
| 18 Oct | 23.3 | Ordained Priest | Joannes Bapt. Caballini † | Priest | Bishop of Senj (-Modruš), Croatia |
| Born | Angelo Maria Vassalli, O.S.B. † | Napoli | Bishop of Massa Lubrense, Italy |
| 20 Oct | | Born | Philippus Hyacinthus Oliveri de Vernier † | Valle Salicis | Archbishop of Sassari, Italy |
| 28 Oct | | Born | Max Polykarp von Törring-Jettenbach † | München | Bishop of Regensburg, Germany |
| 30 Oct | | Born | Alphonse-Hubert de Latier de Bayane † | Valence, France | Cardinal, Priest of the Roman Curia - Other |
| 1 Nov | 41.0 | Ordained Bishop | Alberico Archinto † | Titular Archbishop of Nicaea | Cardinal, Cardinal-Priest of San Lorenzo in Damaso |
| 3 Nov | | Born | Jean-Baptiste-Auguste de Villoutreix de Faye † | Limousin | Bishop of Oloron (Oloron-Sainte-Marie), France |
| 6 Nov | 60.3 | Died | Lucas Sartorius Delmestri von Schönberg † | Bishop of Trieste, Italy |
| 8 Nov | 33.4 | Ordained Bishop | Augustin-François-Annibal de Farcy de Cuillé † | Bishop of Quimper, France |
| 14 Nov | 56.5 | Died | Juan de Galabis, O. Praem. † | Archbishop of Santafé en Nueva Granada, Colombia |
| 35.8 | Appointed | Jean-Joseph de Fogasses d’Entrechaux de La Bastie † | Bishop of Saint-Malo, France |
| 15 Nov | 55.5 | Ordained Priest | Ludovico Ancaiani † | Priest | Bishop of Spoleto, Italy |
| 43.2 | Appointed | Bartolomeo Mollo † | Bishop of San Severo, Italy |
| 16 Nov | 55.5 | Appointed | Ludovico Ancaiani † | Bishop of Spoleto, Italy |
| 36.5 | Appointed | Martin du Bellay † | Bishop of Fréjus, France | Bishop Emeritus |
| Born | Teodoro Botelho Homen Bernardes † | Lisboa, Portugal | Archbishop of Cranganore (Angamala), India |
| 77.0 | Installed | Prospero Colonna † | Cardinal, Cardinal-Deacon of Sant’Angelo in Pescheria |
| 50.2 | Installed | Carlo Maria Sacripante † | Cardinal-Deacon of Santa Maria in Aquiro | Cardinal, Cardinal-Bishop of Frascati |
| 39.2 | Appointed | Wacław Hieronim Sierakowski † | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine | Archbishop of Lviv, Ukraine |
| 53.3 | Appointed | Antonio Vegni † | Bishop of Sovana (Soana), Italy |
| 22 Nov | 59.8 | Ordained Bishop | Louis Néez, M.E.P. † | Titular Bishop of Comana Armeniae | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viet Nam |
| 30 Nov | 55.6 | Ordained Bishop | Ludovico Ancaiani † | Bishop of Spoleto, Italy |
| 53.3 | Ordained Bishop | Antonio Vegni † | Bishop of Sovana (Soana), Italy |
| Dec | | Died | John Armstrong † | Bishop of Down and Connor, Ireland |
| 51.2 | Died | Joannes Antonius Foscarini † | Archbishop of Corfù, Greece |
| 4 Dec | | Born | Louis-Hector-Honoré-Maxime de Sabran † | Provence | Bishop of Laon, France |
| 7 Dec | | Born | Giovanni Battista a Santa Margarita Pietro Alessandro Banfi, O.C.D. † | Milano | Bishop of Tivoli, Italy |
| 8 Dec | 43.3 | Ordained Bishop | Bartolomeo Mollo † | Bishop of San Severo, Italy |
| 10 Dec | 60.6 | Died | Jozafat Karp † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 13 Dec | | Born | Vincentius Barisani, O.S.A. † | Napoli | Bishop of Gerace, Italy |
| 36.6 | Ordained Bishop | Martin du Bellay † | Bishop of Fréjus, France | Bishop Emeritus |
| 14 Dec | 56.0 | Confirmed | Jean-Louis Berton des Balbes de Crillon † | Archbishop of Narbonne, France |
| 56.9 | Appointed | Francisco Antonio Bustamante Jiménez † | Bishop of Barbastro, Spain | Bishop of Plasencia, Spain |
| 39.2 | Appointed | Jean-Gilles du Coêtlosquet † | Bishop of Limoges, France | Bishop Emeritus |
| 44.3 | Appointed | Lorenzo Da Ponte † | Bishop of Ceneda, Italy |
| 39.2 | Appointed | Giacinto Maria Giannucci † | Bishop of Isernia, Italy |
| 52.9 | Appointed | Francesco Antonio Razzolini, O.F.M. Conv. † | Bishop of Santorini {Thira}, Greece | Bishop Emeritus |
| 52.4 | Appointed | Onésimo Salamanca Zaldívar † | Bishop of Zamora, Spain | Archbishop of Burgos, Spain |
| 43.2 | Appointed | Francisco Zarceño Martínez, O.SS.T. † | Bishop of Solsona, Spain |
| 16 Dec | 34.7 | Died | Joannes Ernestus von Harrach † | Bishop of Nitra, Slovakia |
| 17 Dec | | Born | Istvan Gosztonyi † | Alsó-Lieszkó | Auxiliary Bishop of Esztergom, Hungary |
| 19 Dec | 35.3 | Ordained Priest | Anton Ludovico Antinori, C.O. † | Priest of Confederation of Oratorians of St. Philip Neri | Archbishop Emeritus of Acerenza e Matera, Italy |
| 23.1 | Ordained Priest | Johann Andreas Kaiser † | Priest of Praha {Prague}, Czech Republic | Bishop of Hradec Králové, Czech Republic |
| 23.2 | Ordained Priest | Benedetto Pucilli † | Priest | Bishop of Terracina, Priverno e Sezze, Italy |
| 24.2 | Ordained Priest | Pietro Maria Vannucci † | Priest | Bishop of Massa Marittima, Italy |
| 20 Dec | 44.3 | Ordained Bishop | Lorenzo Da Ponte † | Bishop of Ceneda, Italy |
| 68.2 | Ordained Bishop | Francisco Gutiérrez Galeano, O. de M. † | Titular Bishop of Rosalia | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 21 Dec | 39.2 | Ordained Bishop | Giacinto Maria Giannucci † | Bishop of Isernia, Italy |
| 26 Dec | 46.8 | Died | Alexander Działyński † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 23.0 | Ordained Priest | Simon Spalatin † | Priest | Bishop of Ossero (Osor), Croatia |
| 27 Dec | 54.0 | Ordained Bishop | Juan Francisco Guillén † | Bishop of Islas Canarias {Canary Islands}, Spain | Archbishop of Burgos, Spain |
| 31 Dec | | Born | Etienne-Joseph de Pavée de Villevieille † | Villevieille | Bishop of Bayonne, France |
| Born | Salvatore Vecchioni, C.O. † | Napoli | Bishop of Anglona-Tursi, Italy |