| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 69.6 | Resigned | Juan Bautista Alvarez de Toledo, O.F.M. † | Bishop of Guadalajara, Jalisco, México | Bishop Emeritus |
| 38.3 | Ordained Priest | Joseph Franz Valerian Felix Reichsgraf von Arco † | Priest of Salzburg, Austria | Bishop-Elect of Chiemsee, Germany |
| Died | Ferdinand de Berlo de Brus † | Bishop of Namur {Namen}, Belgium |
| 31.7 | Appointed | Jean de Caulet † | Bishop of Grenoble, France |
| Died | Juan Cabero y Toledo † | Bishop of Santa Cruz de la Sierra, Bolivia |
| Born | Giannagostino Gradenigo † | Venezia | Bishop of Ceneda, Italy |
| 46.0 | Appointed | Franciszek Antoni Kobielski † | Titular Bishop of Antaeopolis | Bishop of Luceoria o Łuck, Ukraine |
| Died | Hugh MacDermot † | Bishop of Achonry, Ireland |
| 36.6 | Appointed | Alexandre Milon † | Bishop of Valence, France |
| 44.0 | Appointed | James O'Gallagher † | Bishop of Raphoe, Ireland | Bishop of Kildare and Leighlin, Ireland |
| Died | James O'Shiel, O.F.M. † | Bishop of Down and Connor, Ireland |
| Born | Charles-Joseph de Raffélis de Saint-Sauveur † | Orange | Bishop of Tulle, France |
| 39.6 | Ordained Priest | Juan Bravo del Rivero y Correa † | Priest of La Plata o Charcas, Bolivia | Bishop of Arequipa, Peru |
| 22.1 | Ordained Priest | Moritz Adolf Karl Herzog von Sachsen-Zeitz (Saský) † | Priest of Nordic Missions, Germany | Bishop of Litomĕrice, Czech Republic |
| Appointed | Bernardo Serrada, O.C. † | Bishop of Cuzco, Peru |
| Jan | | Died | Jean de Catelan † | Bishop of Valence, France |
| 1 Jan | 55.0 | Ordained Bishop | Joseph-Louis de Cahorne de La Palun † | Bishop of Vaison, France |
| 9 Jan | 59.3 | Died | Francesco Acquaviva d’Aragona † | Cardinal, Cardinal-Bishop of Sabina |
| 14 Jan | 52.4 | Ordained Bishop | Félix Bernuy Zapata y Mendoza † | Bishop of Islas Canarias {Canary Islands}, Spain |
| 16 Jan | | Born | Blas Manuel Sobrino y Minayo † | Urueña, Spain | Bishop of Trujillo, Peru |
| 29 Jan | 38.1 | Appointed | Antonio Claudio Alvarez de Quiñones † | Archbishop of Santafé en Nueva Granada, Colombia |
| 55.2 | Appointed | Bogusław Korwin Gosiewski † | Bishop of Smoleńsk, Poland |
| Appointed | Jan Feliks Szaniawski † | Bishop of Chelm, Poland |
| 4 Feb | 55.1 | Ordained Bishop | Honoré-François Grimaldi de Monaco † | Archbishop of Besançon, France |
| 10 Feb | | Born | Jean-Baptiste-Marie Champion de Cicé † | Rennes | Bishop of Auxerre, France |
| 15 Feb | 77.2 | Retired | Francesco del Giudice † | Archbishop of Monreale, Italy | Cardinal, Archbishop Emeritus |
| 21 Feb | 55.1 | Appointed | Ludovico Alvares de Figueiredo † | Archbishop of São Salvador da Bahia, Brazil |
| 68.0 | Appointed | Juan Álvaro Cienfuegos Villazón, S.J. † | Cardinal, Archbishop of Monreale, Italy |
| 51.2 | Appointed | José de Fialho, O. Cist. † | Bishop of Olinda, Brazil | Bishop of Guarda, Portugal |
| 52.4 | Appointed | Antônio de Guadalupe, O.F.M. † | Bishop of São Sebastião do Rio de Janeiro, Brazil | Bishop of Viseu, Portugal |
| Appointed | Eugénio Trigueiros, O.S.A. † | Coadjutor Bishop of Macau, China | Archbishop of Goa, India |
| 4 Mar | 24.5 | Ordained Priest | Clemens August Maria Herzog von Bayern † | Priest of Köln {Cologne}, Germany | Archbishop |
| 6 Mar | | Born | Henry Benedict Mary Clement Stuart of York † | Rome | Cardinal, Bishop of Frascati, Italy |
| 11 Mar | 57.2 | Ordained Bishop | Edme Mongin † | Bishop of Bazas, France |
| 13 Mar | | Born | Manuel Joaquín Morón † | Almazán | Bishop of Valladolid, Spain |
| 14 Mar | 49.2 | Died | Godefroid-Maurice de Conflans † | Bishop of Le Puy-en-Velay, France |
| 17 Mar | | Born | Juan Manuel Cornel † | Cerler | Bishop of Barbastro, Spain |
| 20 Mar | 61.7 | Resigned | Juan Camargo Angulo † | Bishop of Pamplona, Spain | Bishop Emeritus |
| 21 Mar | 45.3 | Appointed | Andrés Murillo Velarde † | Bishop of Pamplona, Spain |
| 43.5 | Appointed | Antonio Maria Santoro, O.M. † | Bishop | Bishop of Ravello, Italy |
| 23 Mar | | Born | Jean-Joseph-Marie de Guernes † | Chambon | Bishop of Aleria, France |
| 31 Mar | 34.2 | Appointed | François-Charles de Béringhen d'Armainvilliers † | Bishop of Le Puy-en-Velay, France |
| 6 Apr | 62.9 | Died | Johann Raymund Guidobald Reichsgraf von Lamberg, O.F.M. Cap. † | Auxiliary Bishop of Passau, Germany |
| 8 Apr | 25.1 | Ordained Priest | Domenico Giordani † | Priest | Titular Patriarch of Antiochia {Antioch}, Syria |
| 51.9 | Ordained Bishop | Christoph Franz Reichsfreiherr von Hutten † | Bishop of Würzburg, Germany |
| 10 Apr | 53.1 | Appointed | Andrés de Orbe y Larreátegui † | Archbishop of Valencia, Spain | Archbishop Emeritus |
| 12 Apr | 57.5 | Died | Johann Joachim Hahn † | Auxiliary Bishop of Mainz, Germany |
| 16 Apr | 32.0 | Appointed | Jean-Baptiste-Antoine de Brancas † | Bishop of La Rochelle, France | Archbishop of Aix, France |
| 69.9 | Died | George Witham † | Vicar Apostolic of Northern District, England, Great Britain |
| 18 Apr | 51.9 | Confirmed | Charles du Plessis d'Argentré † | Bishop of Tulle, France |
| 22 Apr | 45.6 | Ordained Priest | Aloysius Foscari † | Priest | Patriarch of Venezia {Venice}, Italy |
| 86.8 | Died | Johann Michael Reichsgraf von Spaur und Valör † | Bishop of Trento, Italy |
| 27 Apr | 78.5 | Died | Johann Anton Reichsfreiherr von Knebel von Katzenellenbogen † | Bishop of Eichstätt, Germany |
| 1 May | 45.4 | Ordained Bishop | Andrés Murillo Velarde † | Bishop of Pamplona, Spain |
| 5 May | 25.8 | Appointed | Philipp Ludwig Reichsgraf von Sinzendorf † | Bishop of Győr, Hungary | Cardinal, Bishop of Wrocław, Poland |
| 12 May | | Appointed | Paolo de Villana Perlas † | Archbishop of Salerno, Italy |
| 13 May | 54.4 | Ordained Bishop | Manuel Coutinho † | Bishop of Funchal, Portugal | Bishop of Lamego, Portugal |
| 51.4 | Ordained Bishop | José de Fialho, O. Cist. † | Bishop of Olinda, Brazil | Bishop of Guarda, Portugal |
| 52.6 | Ordained Bishop | Antônio de Guadalupe, O.F.M. † | Bishop of São Sebastião do Rio de Janeiro, Brazil | Bishop of Viseu, Portugal |
| 14 May | | Born | Ange-François de Talaru de Chalmazel † | Bourbonnais | Bishop of Coutances, France |
| 22 May | | Born | Johann Heinrich von Kerens, S.J. † | Maastricht, Netherlands | Bishop of Sankt Pölten, Austria |
| 26 May | 37.4 | Ordained Bishop | Jean-Mathias de Barthélemy de Gramont de Lanta † | Bishop of Perpignan-Elne, France |
| 29 May | | Born | Juan Antonio de Jesús Sacedón Sánchez, O.F.M. † | Sacedón de Alcarria, Spain | Bishop of Linares o Nueva León, Nuevo León, México |
| 2 Jun | | Born | Marco Aurelio Balbis Bertone † | Chieri | Bishop of Novara, Italy |
| 10 Jun | 52.1 | Ordained Bishop | Charles du Plessis d'Argentré † | Bishop of Tulle, France |
| 11 Jun | 44.4 | Elevated to Cardinal | Niccolò Paolo Andrea Coscia † | Cardinal, Archbishop Emeritus of Benevento, Italy |
| 55.6 | Appointed | Bernardo Jiménez Cascante † | Bishop of Barcelona, Spain |
| 38.4 | Confirmed | Charles-Louis-Auguste Le Tonnelier de Breteuil † | Bishop of Rennes, France |
| 56.3 | Appointed | Johann Baptist Reichfreiherr von Reinach-Hirzbach † | Titular Bishop of Abdera | Coadjutor Bishop of Basel, Switzerland |
| 56.3 | Confirmed | Johann Baptist Reichfreiherr von Reinach-Hirzbach † | Coadjutor Bishop of Basel, Switzerland |
| 28.3 | Appointed | Charles-Antoine de la Roche-Aymon † | Auxiliary Bishop of Limoges, France | Cardinal, Archbishop of Reims, France |
| 28.3 | Appointed | Charles-Antoine de la Roche-Aymon † | Titular Bishop of Sarepta | Cardinal, Archbishop of Reims, France |
| 13 Jun | 53.2 | Installed | Andrés de Orbe y Larreátegui † | Archbishop of Valencia, Spain | Archbishop Emeritus |
| 17 Jun | 47.5 | Ordained Bishop | Carlos Bermudez de Castro † | Archbishop of Manila, Philippines |
| 3 Jul | 53.9 | Appointed | Franz Ludwig Reichsfreiherr von Schenk von Castell † | Bishop of Eichstätt, Germany |
| 8 Jul | 39.5 | Ordained Priest | Egidio Antonio Isabelli † | Priest | Bishop of Alife, Italy |
| 15 Jul | 38.5 | Ordained Bishop | Charles-Louis-Auguste Le Tonnelier de Breteuil † | Bishop of Rennes, France |
| 23 Jul | 32.3 | Confirmed | Jean-Baptiste-Antoine de Brancas † | Bishop of La Rochelle, France | Archbishop of Aix, France |
| 44.6 | Installed | Niccolò Paolo Andrea Coscia † | Cardinal-Priest of S. Maria in Domnica | Cardinal, Archbishop Emeritus of Benevento, Italy |
| 24 Jul | | Born | Santiago José Echaverría Nieto de Osorio y Elguera † | Santiago | Bishop of Tlaxcala, Tlaxcala, México |
| 5 Aug | 28.5 | Ordained Bishop | Charles-Antoine de la Roche-Aymon † | Titular Bishop of Sarepta | Cardinal, Archbishop of Reims, France |
| 10 Aug | | Born | Raymond de Durfort † | Roque-en-Quercy | Archbishop of Besançon, France |
| 23 Aug | 58.9 | Died | Christian August von Sachsen-Zeitz † | Cardinal, Archbishop of Esztergom, Hungary |
| 5 Sep | 31.6 | Appointed | Giuseppe Spinelli † | Titular Archbishop of Corinthus | Cardinal, Cardinal-Bishop of Ostia |
| 6 Sep | 31.6 | Appointed | Giuseppe Spinelli † | Apostolic Nuncio to Other | Cardinal, Cardinal-Bishop of Ostia |
| 9 Sep | 53.2 | Appointed | Giovanni Benedetti Gentilotti † | Bishop of Trento, Italy | Bishop-Elect |
| 55.8 | Ordained Bishop | Bernardo Jiménez Cascante † | Bishop of Barcelona, Spain |
| 12 Sep | 73.6 | Died | Johann Christoph Haus † | Auxiliary Bishop of Basel, Switzerland |
| 18 Sep | 26.6 | Ordained Priest | Hugh MacDonald † | Priest | Vicar Apostolic of Highland District, Scotland, Great Britain |
| 20 Sep | 53.2 | Died | Giovanni Benedetti Gentilotti † | Bishop-Elect of Trento, Italy |
| Appointed | Dominic O’Daly, O.P. † | Bishop of Achonry, Ireland |
| 23 Sep | | Born | Pedro Rubio-Benedicto Herrero † | Santa María del Campo Rus, Spain | Bishop of Jaén, Spain |
| 25 Sep | | Born | Guido Calcagnini † | Ferrara | Cardinal, Bishop of Osimo e Cingoli, Italy |
| 56.7 | Installed | Alonso del Pozo y Silva † | Bishop of Santiago de Chile | Archbishop Emeritus of La Plata o Charcas, Bolivia |
| 26 Sep | 61.2 | Appointed | Fabio Mancinforte † | Titular Archbishop of Nauplia | Bishop Emeritus of Gubbio, Italy |
| 61.2 | Resigned | Fabio Mancinforte † | Bishop of Gubbio, Italy | Bishop Emeritus |
| 33.7 | Ordained Bishop | Gregorio de Molleda y Clerque † | Bishop | Archbishop of La Plata o Charcas, Bolivia |
| 54.1 | Confirmed | Franz Ludwig Reichsfreiherr von Schenk von Castell † | Bishop of Eichstätt, Germany |
| 29 Sep | | Born | Michal Mateusz Kosmowski † | Slowikowo | Auxiliary Bishop of Gniezno, Poland |
| Oct | | Died | Jean-Jacques de Verthamon † | Bishop of (Saint-Lizier de) Couserans, France |
| 2 Oct | | Born | José Francisco Miguel António de Mendonça Valdereis † | Lisbon | Cardinal, Patriarch of Lisboa, Portugal |
| 10 Oct | 77.8 | Died | Francesco del Giudice † | Cardinal, Archbishop Emeritus of Monreale, Italy |
| 14 Oct | 23.1 | Ordained Priest | Johann Georg Freiherr von Stinglheim † | Priest of Regensburg, Germany | Auxiliary Bishop |
| 15 Oct | | Born | Luigi Valenti Gonzaga † | Roveredo | Cardinal, Librarian of the Vatican Library |
| 20 Oct | | Died | Paul de Chaulnes † | Bishop of Grenoble, France |
| 23 Oct | 32.5 | Ordained Bishop | Jean-Baptiste-Antoine de Brancas † | Bishop of La Rochelle, France | Archbishop of Aix, France |
| 25 Oct | | Born | Gabino Valladares Mejía, O. Carm. † | Aracena | Bishop of Barcelona, Spain |
| 29 Oct | 43.8 | Appointed | François de Baglion de la Salle † | Bishop of Arras, France |
| Born | Giuseppe Garampi † | Rimini | Cardinal, Bishop of Montefiascone, Italy |
| 17 Nov | | Born | Karol Salbeck † | Galati, Romania | Bishop of Spiš, Slovakia |
| 18 Nov | 61.5 | Ordained Bishop | Giulio Alberoni † | Bishop of Málaga, Spain | Cardinal, Bishop Emeritus |
| 19 Nov | 61.5 | Resigned | Giulio Alberoni † | Bishop of Málaga, Spain | Cardinal, Bishop Emeritus |
| 65.1 | Appointed | Gianantonio Davia † | Cardinal-Priest of S. Pietro in Vincoli | Cardinal, Bishop Emeritus of Rimini, Italy |
| Appointed | Juan Francisco Gómez Calleja † | Bishop of Popayán, Colombia |
| 59.9 | Appointed | Juan Gómez de Neva y Frías † | Bishop of Quito, Ecuador |
| 50.9 | Appointed | Diego González Toro y Villalobos † | Bishop of Málaga, Spain | Bishop of Cuenca, Spain |
| 46.9 | Appointed | Antonio López Portillo de Guadalupe, O.F.M. † | Bishop of Comayagua, Honduras |
| 74.6 | Appointed | Fabrizio Paolucci † | Cardinal-Bishop of Ostia (-Velletri) | Cardinal, Prefect of the Roman Curia - Other |
| 73.8 | Appointed | Francesco Pignatelli, C.R. † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 60.9 | Appointed | Luis Francisco Romero † | Archbishop of La Plata o Charcas, Bolivia |
| 25 Nov | | Died | Jacques des Maretz † | Archbishop of Auch, France |
| 56.7 | Ordained Bishop | Johann Baptist Reichfreiherr von Reinach-Hirzbach † | Titular Bishop of Abdera | Coadjutor Bishop of Basel, Switzerland |
| 66.9 | Died | Fernando de Valdivia y Mendoza, O.A.R. † | Bishop of Puerto Rico (Porto Rico) |
| 30 Nov | | Ordained Bishop | Dominic O’Daly, O.P. † | Bishop of Achonry, Ireland |
| Dec | 64.1 | Appointed | Melchior de Polignac † | Cardinal, Archbishop of Auch, France |
| 11 Dec | 65.9 | Appointed | Thomas Dominic Williams, O.P. † | Vicar Apostolic of Northern District, England, Great Britain |
| 15 Dec | 77.0 | Died | Giuseppe Vallemani † | Cardinal, Cardinal-Priest of S. Maria degli Angeli |
| 16 Dec | | Born | Jose Martinez Palomino y Lopez de Lorena † | Valdemoro, Spain | Bishop of Foreign Diocese |
| 54.4 | Ordained Bishop | Franz Ludwig Reichsfreiherr von Schenk von Castell † | Bishop of Eichstätt, Germany |
| 19 Dec | 65.8 | Appointed | Domingo Valentín Guerra Arteaga y Leiba † | Titular Archbishop of Amida | Bishop of Segovia, Spain |
| 64.2 | Appointed | Melchior de Polignac † | Cardinal-Priest of S. Maria degli Angeli | Cardinal, Archbishop of Auch, France |
| 51.2 | Appointed | Agustín Rodríguez Delgado † | Bishop of Panamá | Archbishop of Lima, Peru |
| 22 Dec | | Appointed | Alexandre de Alexandris, C.R.S.P. † | Coadjutor Vicar Apostolic of Cochin {Cocincina}, Viêt Nam | Vicar Apostolic |
| Appointed | Alexandre de Alexandris, C.R.S.P. † | Titular Bishop of Nabala | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 66.0 | Appointed | Thomas Dominic Williams, O.P. † | Titular Bishop of Tiberiopolis | Vicar Apostolic of Northern District, England, Great Britain |
| 66.0 | Confirmed | Thomas Dominic Williams, O.P. † | Vicar Apostolic of Northern District, England, Great Britain |
| 25 Dec | 61.0 | Appointed | Jean-Jacques Bouhier de Lantenay † | Bishop of Dijon, France | Bishop Emeritus |
| 27 Dec | 34.0 | Ordained Bishop | Pierre de Pardaillan de Gondrin d'Autin † | Bishop of Langres, France |
| 30 Dec | | Born | Antonius Reichsgraf von Herberstein, C.R. † | Wien | Bishop of Trieste, Italy |
| 66.0 | Ordained Bishop | Thomas Dominic Williams, O.P. † | Titular Bishop of Tiberiopolis | Vicar Apostolic of Northern District, England, Great Britain |