| Date | Age | Event | Bishop | Title | Current Title |
| 8 Jul | | Born | Joaquín Fernández de Madrid y Canal † | | Titular Bishop of Tanagra |
| 10 Jul | 51.3 | Appointed | José Pegado de Azevedo † | Bishop of Angra, Portugal |
| 18 Jul | 54.5 | Died | Maria José a Santo Tomas, O.P. † | Prelate of Mozambico, Mozambique |
| 20 Jul | 47.5 | Appointed | Blas Joaquín Alvarez Palma † | Bishop of Albarracin, Spain | Archbishop of Granada, Spain |
| Appointed | Ramón José Arce † | Archbishop of Zaragoza, Spain | Patriarch Emeritus of West Indies, Antilles |
| 51.8 | Appointed | Agustín Pedro Blaquier, O.S.A. † | Bishop of Nueva Segovia, Philippines |
| 54.7 | Appointed | Giuseppe Carrano † | Titular Bishop of Traianopolis in Rhodope | Titular Archbishop |
| 51.2 | Appointed | António José Cordeiro † | Bishop of Aveiro, Portugal |
| 57.0 | Appointed | Giulio Maria della Somaglia † | Cardinal-Priest of S. Maria sopra Minerva | Cardinal, Archivist of the Vatican Secret Archives |
| 32.0 | Appointed | Karl Kajetan Graf von Gaisruck (Gaysruck) † | Auxiliary Bishop of Passau, Germany | Cardinal, Archbishop of Milano {Milan}, Italy |
| 32.0 | Appointed | Karl Kajetan Graf von Gaisruck (Gaysruck) † | Titular Bishop of Derbe | Cardinal, Archbishop of Milano {Milan}, Italy |
| 46.4 | Appointed | Santiago Hernández Milanés † | Bishop of Mérida, Venezuela |
| 46.1 | Appointed | Primo Feliciano Marín y Porras, O.F.M. † | Bishop of Linares o Nueva León, Nuevo León, México |
| 62.3 | Appointed | Ferenc Miklósy † | Auxiliary Bishop of Eger, Hungary | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 62.3 | Appointed | Ferenc Miklósy † | Titular Bishop of Titiopolis | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 53.8 | Appointed | Rafael Múzquiz Aldunate † | Archbishop of Santiago de Compostela, Spain |
| 52.3 | Appointed | Luis Ignatius Peñalver y Cárdenas † | Archbishop of Guatemala | Archbishop Emeritus |
| 61.8 | Appointed | Francisco Porró Reinado † | Bishop of Louisiana and the Two Floridas (Saint Louis of New Orleans), USA | Bishop of Tarazona, Spain |
| 56.4 | Appointed | Johannes Antonius Ricci † | Auxiliary Bishop of Ljubljana, Slovenia |
| 64.5 | Appointed | Filippo Scarola † | Titular Bishop of Helenopolis in Bithynia |
| 56.6 | Appointed | St. Vincenzo Maria Strambi, C.P. † | Bishop of Macerata-Tolentino, Italy |
| 39.7 | Appointed | Juan Acisclo Vera Delgado † | Auxiliary Bishop of Sevilla {Seville}, Spain | Bishop of Cádiz, Spain |
| 39.7 | Appointed | Juan Acisclo Vera Delgado † | Titular Archbishop of Laodicea in Phrygia | Bishop of Cádiz, Spain |
| 26 Jul | 36.7 | Appointed | Karl Klemens Reichsfreiherr von Gruben † | Auxiliary Bishop of Köln {Cologne}, Germany | Bishop of Hildesheim, Germany |
| 56.6 | Ordained Bishop | St. Vincenzo Maria Strambi, C.P. † | Bishop of Macerata-Tolentino, Italy |
| 29 Jul | 44.6 | Died | Max Franz (Maximilian Franciscus) von Habsburg-Lothringen (Österreich) † | Archbishop of Köln {Cologne}, Germany |
| 3 Aug | 82.0 | Died | Francisco Fabián y Fuero † | Archbishop Emeritus of Valencia, Spain |
| 7 Aug | | Appointed | Edmond Derry † | Bishop of Dromore, Ireland |
| 16 Aug | 60.3 | Ordained Bishop | José Antonio García Mohedano † | Bishop of Santo Tomás de Guayana, Venezuela |
| 23 Aug | 32.0 | Ordained Bishop | Karl Kajetan Graf von Gaisruck (Gaysruck) † | Titular Bishop of Derbe | Cardinal, Archbishop of Milano {Milan}, Italy |
| 26 Aug | 80.3 | Died | Pierre-Louis de Leyssin † | Archbishop of Embrun, France |
| 28 Aug | | Born | Mattei Augusto Mengacci † | S. Angelo in Vado | Bishop of Civita Castellana, Orte e Gallese, Italy |
| 30 Aug | 22.8 | Ordained Priest | Franz Xaver von Schwäbl † | Priest of Passau, Germany | Bishop of Regensburg, Germany |
| 3 Sep | 62.7 | Died | Hugh O'Reilly † | Bishop of Clogher, Ireland |
| 6 Sep | 80.0 | Retired | Gabriel-François Moreau † | Bishop of Mâcon, France | Bishop of Autun, France |
| 12 Sep | 47.5 | Died | José González de Cándamo y Cauniego † | Auxiliary Bishop of San Cristobal de la Habana, Cuba | Auxiliary Bishop of San Cristobal de la Habana, Cuba |
| 16 Sep | 61.6 | Resigned | Jean-Baptiste de Chabot † | Bishop of Saint-Claude, France | Bishop Emeritus of Mende, France |
| 18 Sep | 57.8 | Resigned | Jean-Baptiste-Marie de Maillé de la Tour-Landry † | Bishop of Saint-Papoul, France | Bishop of Rennes, France |
| 19 Sep | 55.8 | Resigned | Gabriel Cortois de Pressigny † | Bishop of Saint-Malo, France | Archbishop of Besançon, France |
| 74.7 | Resigned | Michel-François de Couët du Vivier de Lorry † | Bishop of Angers, France | Bishop Emeritus of La Rochelle, France |
| 25.0 | Ordained Priest | Thomas Walsh † | Priest | Vicar Apostolic of London District, England, Great Britain |
| 20 Sep | 50.8 | Appointed | Eugenio de la Santísima Trinidad Sesé, O.R.S.A. † | Bishop of Santa Marta, Colombia |
| 21 Sep | 91.9 | Resigned | Jean-Baptiste de Belloy-Morangle † | Bishop of Marseille, France | Cardinal, Archbishop of Paris, France |
| 80.6 | Resigned | Jean-Armand de Bessuéjouls Roquelaure † | Bishop of Senlis, France | Archbishop Emeritus of Mechelen, Belgium |
| 22 Sep | 52.8 | Resigned | Louis-François de Bausset-Roquefort † | Bishop of Alès (Alais), France | Cardinal, Bishop Emeritus |
| 26 Sep | 65.1 | Resigned | Charles-François d'Aviau Du Bois de Sanzay † | Archbishop of Vienne, France | Archbishop of Bordeaux, France |
| 47.6 | Resigned | Antoine-Eustache d'Osmond † | Bishop of Saint-Bernard de Comminges, France | Bishop of Nancy, France |
| 28 Sep | 58.7 | Appointed | Angiolo (Angelo) Cesarini † | Titular Bishop of Milevum |
| 66.0 | Appointed | Marco Antonio Gregorina † | Bishop of Foreign Diocese |
| 45.6 | Appointed | Lorenzo Litta † | Cardinal-Priest of S. Pudenziana | Cardinal, Official of the Roman Curia - Other |
| 45.6 | Elevated to Cardinal | Lorenzo Litta † | Cardinal, Official of the Roman Curia - Other |
| 57.4 | Appointed | Michelangelo Luchi, O.S.B. † | Cardinal-Priest of S. Maria della Vittoria | Cardinal, Priest of the Roman Curia - Other |
| 57.4 | Elevated to Cardinal | Michelangelo Luchi, O.S.B. † | Cardinal, Priest of the Roman Curia - Other |
| 43.2 | Appointed | Francesco Maria Paolucci Mancinelli † | Titular Bishop of Tiberias | Bishop of Fano, Italy |
| 44.6 | Appointed | Antonio Gabriele Severoli † | Archbishop (Personal Title) of Fano, Italy | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 44.7 | Appointed | Isidoro Spano † | Auxiliary Bishop of Mazara del Vallo, Italy |
| 44.7 | Appointed | Isidoro Spano † | Titular Bishop of the unknown of Titular See | Auxiliary Bishop of Mazara del Vallo, Italy |
| 61.7 | Appointed | Antonio Felice Zondadari † | Cardinal-Priest of S. Balbina | Cardinal, Archbishop of Siena, Italy |
| 61.7 | Elevated to Cardinal | Antonio Felice Zondadari † | Cardinal, Archbishop of Siena, Italy |
| 29 Sep | 58.7 | Ordained Bishop | Angiolo (Angelo) Cesarini † | Titular Bishop of Milevum |
| Oct | 44.6 | Appointed | Antonio Gabriele Severoli † | Titular Archbishop of Petra in Palaestina | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 44.6 | Appointed | Antonio Gabriele Severoli † | Apostolic Nuncio to Austria | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 4 Oct | 43.2 | Ordained Bishop | Francesco Maria Paolucci Mancinelli † | Titular Bishop of Tiberias | Bishop of Fano, Italy |
| 56.7 | Ordained Bishop | Johannes Antonius Ricci † | Auxiliary Bishop of Ljubljana, Slovenia |
| 5 Oct | 55.5 | Resigned | Louis-Mathias-Joseph de Barral † | Bishop of Troyes, France | Archbishop Emeritus of Tours, France |
| 7 Oct | 23.4 | Ordained Priest | Anton Ferdinand Holtgreven † | Priest of Paderborn, Germany | Auxiliary Bishop |
| 8 Oct | 66.1 | Resigned | Jérôme-Marie Champion de Cicé † | Archbishop of Bordeaux, France | Archbishop of Aix, France |
| 10 Oct | 61.2 | Died | Diego Santamaría Cevallos, O.F.M. † | Bishop of Santa Marta, Colombia |
| 11 Oct | 38.1 | Ordained Bishop | Andreas Stanislaus von Hattynski (Hatten) † | Titular Bishop of Diana | Bishop of Warmia, Poland |
| 12 Oct | | Born | Vincent Spaccapietra, C.M. † | Francavilla | Archbishop of Izmir (Smirne), Turkey |
| 13 Oct | 48.4 | Resigned | Jean-Claude Leblanc de Beaulieu † | Bishop of Foreign Diocese | Bishop Emeritus of Soissons, France |
| 15 Oct | 51.9 | Appointed | Václav (Wenzel) Léopold Ritter von Chlumčansky † | Bishop of Litomĕrice, Czech Republic | Archbishop of Praha {Prague}, Czech Republic |
| 18 Oct | 51.5 | Resigned | Etienne-André-François de Paule de Fallot de Béaupré de Beaumont † | Bishop of Foreign Diocese | Bishop Emeritus |
| 39.9 | Ordained Bishop | Juan Acisclo Vera Delgado † | Titular Archbishop of Laodicea in Phrygia | Bishop of Cádiz, Spain |
| 20 Oct | | Born | Giuseppe Singlau † | Pisa | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 24 Oct | 57.8 | Resigned | Louis-Apolinaire de La Tour du Pin-Montauban † | Archbishop of Auch, France | Bishop of Troyes, France |
| 65.7 | Resigned | Marie-Charles-Isidore de Mercy † | Bishop of Luçon, France | Archbishop of Bourges, France |
| 25 Oct | 54.0 | Ordained Bishop | Pietro Luigi Rusconi † | Titular Bishop of Amathus in Cypro | Auxiliary Bishop of Cesena, Italy |
| 31 Oct | 74.2 | Died | Jean-Marie Cuchot d'Herbain † | Auxiliary Bishop Emeritus of Trier, Germany |
| 1 Nov | 50.1 | Ordained Bishop | Georg Franz Lock † | Titular Bishop of Antigonea | Prefect of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany |
| 2 Nov | | Born | Giuiseppe Angelo di Fazio, O.F.M. Cap. † | Pianella | Coadjutor Vicar Apostolic of Tibet-Hindustan, India |
| 3 Nov | 57.8 | Succeeded | James Murphy † | Bishop of Clogher, Ireland |
| 5 Nov | 57.7 | Resigned | François de Fontanges † | Archbishop of Toulouse, France | Bishop of Autun, France |
| 7 Nov | 69.7 | Resigned | Jean-de-Dieu-Raymond de Boisgelin de Cucè † | Archbishop of Aix, France | Cardinal, Archbishop of Tours, France |
| Born | Christoph Florentius Kött † | St. Martin, France | Bishop of Fulda, Germany |
| 8 Nov | 51.5 | Ordained Bishop | António José Cordeiro † | Bishop of Aveiro, Portugal |
| 10 Nov | 48.3 | Resigned | Romoaldo Braschi-Onesti † | Chamberlain (Camerlengo) of the College of Cardinals | Cardinal, Archpriest of the Basilica di San Pietro in Vaticano {Saint Peter Basilica} |
| 15 Nov | 60.5 | Ordained Bishop | Lorenzo Caleppi † | Titular Archbishop of Nisibis | Cardinal, Apostolic Nuncio to Portugal |
| 50.9 | Succeeded | St. Taurin Gabriel Dufresse, M.E.P. † | Vicar Apostolic of Se-Ciuen, China |
| 66.5 | Ordained Priest | Luigi Gazzoli † | Priest | Cardinal, Priest of the Roman Curia - Other |
| 62.6 | Ordained Bishop | Ferenc Miklósy † | Titular Bishop of Titiopolis | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 51.7 | Ordained Bishop | José Pegado de Azevedo † | Bishop of Angra, Portugal |
| 62.1 | Ordained Bishop | Francisco Porró Reinado † | Bishop of Louisiana and the Two Floridas (Saint Louis of New Orleans), USA | Bishop of Tarazona, Spain |
| 58.8 | Died | Jean-Didier de Saint Martin, M.E.P. † | Vicar Apostolic of Se-Ciuen, China |
| 20 Nov | 75.2 | Resigned | Joannes-Henricus von Frankenberg † | Archbishop of Mechelen, Belgium | Cardinal, Archbishop Emeritus |
| 22 Nov | 44.9 | Ordained Bishop | Isidoro Spano † | Titular Bishop of the unknown of Titular See | Auxiliary Bishop of Mazara del Vallo, Italy |
| 23 Nov | 63.0 | Resigned | Ferdinand-Maximilien-Mériadec de Rohan-Guémené † | Archbishop of Cambrai, France | Archbishop Emeritus |
| 26 Nov | 45.4 | Resigned | François Antoine Marie Constantin de Méan et de Beaurieux † | Bishop of Liège, Belgium | Archbishop of Mechelen, Belgium |
| 29 Nov | 67.2 | Resigned | Louis-René-Edouard de Rohan-Guéménée † | Bishop of Strasbourg, France | Cardinal, Bishop Emeritus |
| 62.2 | Resigned | Klemens Wenzeslaus Herzog von Sachsen † | Archbishop of Trier, Germany | Bishop of Augsburg, Germany |
| 1 Dec | | Born | Lorenzo Barili † | Ancona | Cardinal, Prefect of the Congregation for Indulgences and Relics |
| 2 Dec | 59.4 | Resigned | René des Monstiers de Mérinville † | Bishop of Dijon, France | Bishop Emeritus of Chambéry, France |
| 3 Dec | | Born | Pietro Luigi Speranza † | Piario | Bishop of Bergamo, Italy |
| 4 Dec | | Born | Gabriel della Genga Sermattei † | Assisi | Cardinal, Prefect of the Roman Curia - Other |
| 8 Dec | 67.3 | Resigned | Charles Alexandre d'Arberg et de Valengin † | Bishop of Ypres (Ieper), Belgium | Bishop Emeritus |
| 11 Dec | | Born | Jean-Baptiste-François Pompallier, S. M. † | Lyons, France | Bishop Emeritus of Auckland, New Zealand |
| 13 Dec | 80.7 | Died | Muzio Gallo † | Bishop of Viterbo e Tuscania, Italy | Cardinal, |
| 15 Dec | 53.0 | Resigned | Anne-Antoine-Jules de Clermont-Tonnerre † | Bishop of Chalons-sur-Marne, France | Cardinal, Archbishop of Toulouse (-Narbonne), France |
| 19 Dec | 22.7 | Ordained Priest | Anzelm Wojciech Brodziszewski † | Priest of Gniezno, Poland | Auxiliary Bishop of Gniezno-Poznań, Poland |
| 84.3 | Died | Francesco Saverio de Zelada † | Cardinal, Archivist of the Vatican Secret Archives |
| 20 Dec | 41.0 | Appointed | Ignace Michel Zahir (Daher) † | Patriarch of Antiochia {Antioch} (Syrian), Lebanon | Patriarch Emeritus |
| 21 Dec | 44.5 | Ordained Deacon | Ercole Consalvi † | Deacon of the Secretariat of State | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 23 Dec | 51.4 | Appointed | Ernst Maria Ferdinand Graf von Bissingen † | Auxiliary Bishop of Konstanz {Constance}, Germany | Auxiliary Bishop Emeritus |
| 51.4 | Appointed | Ernst Maria Ferdinand Graf von Bissingen † | Titular Bishop of Iasus | Auxiliary Bishop Emeritus of Konstanz {Constance}, Germany |
| 60.7 | Appointed | Lorenzo Caleppi † | Cardinal, Apostolic Nuncio to Portugal |
| 53.0 | Appointed | Andrés Ambrosio de Llanos y Valdés, O.F.M. † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| 53.5 | Appointed | Antonio Dugnani † | Cardinal-Priest of S. Prassede | Cardinal, Prefect of the Apostolic Signatura |
| 68.4 | Appointed | Ludovico Flangini Giovanelli † | Cardinal, Patriarch of Venezia {Venice}, Italy |
| 56.3 | Appointed | Klaus Münst, O.F.M. Cap. † | Titular Bishop of Myndus |
| 61.2 | Appointed | Ferenc Szanyi † | Bishop of Foreign Diocese |
| 27 Dec | 66.2 | Ordained Bishop | Marco Antonio Gregorina † | Bishop of Foreign Diocese |
| 28 Dec | 58.5 | Died | Giovanni Rinuccini † | Cardinal, Priest of the Roman Curia - Other |