| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Domenico Angeletti † | Bishop of Nicastro, Italy |
| Died | Giuseppe Barone † | Bishop of Bova, Italy |
| Died | Michele Bologna † | Archbishop of Amalfi, Italy |
| 23.0 | Ordained Priest | Henri-Marie du Breuil de Pontbriand † | Priest | Bishop of Québec, Québec, Canada |
| Died | Franciszek Józef Kraszkowski † | Auxiliary Bishop of Gniezno, Poland |
| Appointed | Francesco Maria Loyero † | Bishop of Nicastro, Italy |
| Appointed | Tommaso Mellina † | Bishop of Bova, Italy |
| Born | Antoni Maciej Sierakowski † | | Bishop of Inflanty (Livonia), Poland |
| 36.9 | Appointed | Giuseppe Spinelli † | Secretary of the Congregation of Bishops and Regulars | Cardinal, Cardinal-Bishop of Ostia |
| 5 Jan | 42.8 | Installed | Thomaz Franciszek Czapski, O. Cist. † | Bishop of Chelmno (Culma), Poland |
| 8 Jan | 45.6 | Installed | Neri Maria Corsini † | Cardinal-Deacon of S. Adriano al Foro | Cardinal, Prefect of the Apostolic Signatura |
| 50.0 | Resigned | Niccolò Paolo Andrea Coscia † | Archbishop of Benevento, Italy | Cardinal, Archbishop Emeritus |
| 68.0 | Installed | Bartolomeo Massei † | Cardinal-Priest of S. Agostino | Cardinal, Bishop of Ancona e Numana, Italy |
| 28 Jan | 76.8 | Died | Marcelino Siuri Navarro † | Bishop of Córdoba, Spain |
| 51.1 | Ordained Bishop | Jean de Vaugirault † | Bishop of Angers, France |
| 1 Feb | | Born | Jean-Baptiste Boulier † | Dijon | Bishop of Evreux, France |
| 4 Feb | | Born | Giovanni Andrea Serrao † | Castel Monardo | Bishop of Potenza, Italy |
| 44.9 | Ordained Bishop | Dominikus Anton Reichsgraf von Thun † | Bishop of Trento, Italy |
| 6 Feb | 53.4 | Died | François-Paul de Neufville de Villeroy † | Archbishop of Lyon, France |
| 8 Feb | | Born | Innocenzo Conti † | Rome | Cardinal, Titular Archbishop of Tyrus |
| 10 Feb | | Born | Juan Moya, O.F.M. † | Aracena | Bishop Emeritus of Osma, Spain |
| 12 Feb | 49.1 | Confirmed | José Antonio Gutiérrez y Ceballos † | Bishop of Córdoba (Tucumán), Argentina | Archbishop of Lima, Peru |
| 32.0 | Appointed | Hugh MacDonald † | Vicar Apostolic of Highland District, Scotland, Great Britain |
| 32.0 | Appointed | Hugh MacDonald † | Titular Bishop of Diana | Vicar Apostolic of Highland District, Scotland, Great Britain |
| 44.2 | Appointed | Tomás del Valle, O.P. † | Bishop of Cádiz, Spain |
| 13 Feb | | Born | Silvestro Scarani † | Velletri | Auxiliary Bishop of Ostia (-Velletri), Italy |
| 18 Feb | 51.1 | Ordained Bishop | José María Ibáñez † | Bishop of Almería, Spain |
| 20 Feb | | Born | Michelangelo Calandrelli, O.S.A. † | Cercemaggiore | Bishop of Acerno, Italy |
| Born | Johann Nepomuk August Reichfreiherr Ungelter von Deisenhausen † | Höchstädt | Auxiliary Bishop of Augsburg, Germany |
| 24 Feb | 52.1 | Ordained Bishop | Gaspar de Molina y Oviedo, O.S.A. † | Bishop of Santiago de Cuba | Cardinal, Bishop of Málaga, Spain |
| 5 Mar | 57.8 | Appointed | Johann Anton Wallreuther † | Auxiliary Bishop of Worms, Germany |
| 57.8 | Appointed | Johann Anton Wallreuther † | Titular Bishop of Sarepta | Auxiliary Bishop of Worms, Germany |
| 26 Mar | 58.1 | Died | Wenzel Franz Karl Reichsfreiherr Koschinsky von Koschín † | Bishop of Hradec Králové, Czech Republic |
| Apr | 47.9 | Ordained Bishop | Juan de Galabis, O. Praem. † | Archbishop of Santo Domingo, Dominican Republic | Archbishop of Santafé en Nueva Granada, Colombia |
| 9 Apr | 53.6 | Confirmed | Jean-Joseph Languet de Gergy † | Archbishop of Sens, France |
| 45.4 | Appointed | Andrés Mayoral Alonso de Mella † | Bishop of Ceuta, Spain | Archbishop of Valencia, Spain |
| 54.7 | Appointed | Pietro Agostino Scorza (Scortia) † | Bishop of Amalfi, Italy | Bishop Emeritus |
| 50.8 | Died | Adriano Sermattei † | Bishop of Viterbo e Tuscania, Italy |
| 65.6 | Appointed | Antonfelice Zondadari † | Cardinal-Priest of S. Prassede | Cardinal, Titular Archbishop of Damascus |
| 12 Apr | 22.9 | Ordained Priest | Aldrago Antonio de Piccardi † | Priest of Trieste, Italy | Bishop of Senj (-Modruš), Croatia |
| 20 Apr | | Born | Ernest Johann Nepomuk Reichsgraf von Herberstein (Herbstein) † | Wien | Bishop of Linz, Austria |
| 22 Apr | 57.9 | Ordained Bishop | Johann Anton Wallreuther † | Titular Bishop of Sarepta | Auxiliary Bishop of Worms, Germany |
| 29 Apr | 23.7 | Ordained Priest | Anton Peter Graf Przichowsky von Przichowitz † | Priest of Praha {Prague}, Czech Republic | Archbishop |
| 30 Apr | 56.1 | Appointed | Prospero Lorenzo Lambertini † | Archbishop of Bologna, Italy | Pope (Roma {Rome}, Italy) |
| 6 May | 22.9 | Ordained Priest | Johann Philipp Karl Anton Reichsfreiherr von Fechenbach zu Laudenbach † | Priest of Würzburg, Germany | Titular Bishop of the unknown of Titular See |
| 13 May | 48.7 | Ordained Bishop | Juan Antonio de Vizarrón y Eguiarreta † | Archbishop of México, Federal District |
| 21 May | 68.4 | Appointed | Bartolomeo Massei † | Archbishop (Personal Title) of Ancona e Numana, Italy | Cardinal, Bishop |
| 25 May | | Born | Franz Philipp Graf von Inzaghi † | Graz | Bishop of Gorizia e Gradisca, Italy |
| 29 May | | Born | Fernando Cardiñanos, O.F.M. † | Vitoria, Spain | Bishop of Comayagua, Honduras |
| Born | Giuseppe Guzzetta † | Piana dei Greci, Italy | Titular Bishop of Lampsacus |
| 3 Jun | 65.6 | Ordained Priest | Philipp Karl Reichsgraf von Eltz zu Kempenich † | Priest of Mainz, Germany | Archbishop |
| 18 Jun | 51.5 | Appointed | Salvador Bermúdez y Becerra † | Bishop of Concepción, Chile | Archbishop of La Plata o Charcas, Bolivia |
| Appointed | Juan Francisco Antonio de Escandón, C.R. † | Archbishop of Lima, Peru |
| 25 Jun | | Born | Francisco Antonio Pablo Sieni Flannings, O.F.M. Cap. † | Barcelona, Spain | Auxiliary Bishop Emeritus of San Cristobal de la Habana, Cuba |
| 28 Jun | 52.4 | Appointed | Gaspar de Molina y Oviedo, O.S.A. † | Bishop of Barcelona, Spain | Cardinal, Bishop of Málaga, Spain |
| 22 Jul | 22.7 | Ordained Priest | Johann Anton Freiherr von Federspiel † | Priest of Chur, Switzerland | Bishop |
| 26 Jul | 44.6 | Appointed | Charles-François Le Févre de Laubriéres † | Bishop of Soissons, France |
| 35.8 | Appointed | Claude de Rouvroy de Saint-Simon † | Bishop of Noyon, France | Bishop of Metz, France |
| 2 Aug | 88.6 | Died | Olivier Jégou de Kervilio † | Bishop of Tréguier, France |
| 5 Aug | 23.1 | Ordained Priest | Franz Karl Joseph Reichsgraf von Fugger-Glött † | Priest of Konstanz {Constance}, Germany | Auxiliary Bishop Emeritus |
| 6 Aug | 53.4 | Appointed | Pedro Manuel Dávila Cárdenas † | Bishop of Islas Canarias {Canary Islands}, Spain | Bishop of Plasencia, Spain |
| 7 Aug | 80.5 | Died | Franz Ferdinand Reichsgraf von Kuenburg † | Archbishop of Praha {Prague}, Czech Republic |
| 20 Aug | | Died | Pedro Felipe Analso Miranda y Ponce de León † | Bishop of Teruel, Spain |
| 23 Aug | | Born | José Joaquim Justiniano Mascarenhas Castello Branco † | Rio de Janeiro | Bishop of São Sebastião do Rio de Janeiro, Brazil |
| 31 Aug | | Born | Ignazio Busca † | Milan | Cardinal, Chamberlain (Camerlengo) of the College of Cardinals |
| 3 Sep | 64.3 | Installed | Alessandro Aldobrandini † | Cardinal-Priest of Ss. Quattro Coronati | Cardinal, Titular Archbishop of Rhodus |
| 44.7 | Confirmed | Charles-François Le Févre de Laubriéres † | Bishop of Soissons, France |
| Born | Stanislaw Jan Siestrzencewicz Bohusz † | Zanki k. Wylkowyszek | Archbishop of Mohilev, Belarus |
| 7 Sep | | Born | Antonio Paramo Somoza † | Goyán | Bishop-Elect of Lugo, Spain |
| 11 Sep | | Born | Giovanni Andrea Archetti † | Brescia | Cardinal, Bishop of Ascoli Piceno, Italy |
| 16 Sep | 45.8 | Ordained Bishop | Andrés Mayoral Alonso de Mella † | Bishop of Ceuta, Spain | Archbishop of Valencia, Spain |
| 22 Sep | 24.2 | Ordained Priest | Pedro Jacinto Valente, O. do Cristo † | Priest | Bishop of Santiago de Cabo Verde |
| 24 Sep | 50.6 | Elevated to Cardinal | Antonio Saverio Gentili † | Cardinal, Prefect of the Congregation of the Council |
| 57.0 | Elevated to Cardinal | Giovanni Antonio Guadagni, O.C.D. † | Cardinal, Bishop of Porto e Santa Rufina, Italy |
| 29 Sep | 76.7 | Died | Manuel Antonio Gómez de Silva † | Bishop of Popayán, Colombia |
| 30 Sep | 53.5 | Ordained Bishop | Pedro Manuel Dávila Cárdenas † | Bishop of Islas Canarias {Canary Islands}, Spain | Bishop of Plasencia, Spain |
| 8 Oct | 28.9 | Appointed | Moritz Adolf Karl Herzog von Sachsen-Zeitz (Saský) † | Bishop of Hradec Králové, Czech Republic | Bishop of Litomĕrice, Czech Republic |
| 15 Oct | 79.0 | Died | Sancho Antonio Belunza Corcuera † | Bishop of Coria, Spain |
| 17 Oct | | Born | Jean-Baptiste-Charles-Marie de Beauvais † | Cherbourg | Bishop Emeritus of Senez, France |
| 18 Oct | 32.7 | Ordained Bishop | Hugh MacDonald † | Titular Bishop of Diana | Vicar Apostolic of Highland District, Scotland, Great Britain |
| 23 Oct | | Born | Carlo Luigi Buronzo del Signore † | Vercelli | Archbishop of Torino {Turin}, Italy |
| 1 Nov | 70.8 | Died | Manuel a Santa Catharina, O. Carm. † | Bishop of Angola e Congo, Angola |
| 4 Nov | 75.8 | Appointed | Daniel Joseph Mayer † | Archbishop of Praha {Prague}, Czech Republic |
| 9 Nov | 43.9 | Appointed | Tomás Ratto Ottonelli † | Bishop of Córdoba, Spain |
| 15 Nov | 89.2 | Died | François Bouthillier de Chavigny † | Bishop Emeritus of Troyes, France |
| 19 Nov | 63.7 | Appointed | Francisco Cepeda Guerrero † | Bishop of Segorbe, Spain |
| 56.2 | Appointed | José Laso de la Vega y Cansino, O.F.M. † | Bishop of Santiago de Cuba | Bishop of Santiago de Cuba |
| 3 Dec | | Born | Stefano Borgia † | Velletri | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 9 Dec | 43.9 | Ordained Bishop | Tomás Ratto Ottonelli † | Bishop of Córdoba, Spain |
| 17 Dec | 48.0 | Appointed | Pedro Morcillo Rubio de Suñón † | Bishop of Panamá | Bishop of Cuzco, Peru |
| 45.0 | Appointed | Juan Angel Rodríguez, O.SS.T. † | Archbishop of Manila, Philippines |
| 57.2 | Appointed | Agustín Rodríguez Delgado † | Bishop of La Paz, Bolivia | Archbishop of Lima, Peru |
| 21 Dec | | Born | José Antonio Martínez de Aldunate † | Santiago | Archbishop-Elect of Santiago de Chile |
| 22 Dec | 38.3 | Ordained Priest | Simon Nikolaus Euseb Reichsgraf von Montjoye-Hirsingen † | Priest of Strasbourg, France | Bishop of Basel, Switzerland |
| 23 Dec | 38.8 | Ordained Priest | Carlo della Torre Rezzonico † | Priest | Pope (Roma {Rome}, Italy) |
| 24 Dec | | Born | Emmanuel-François de Bausset-Roquefort † | Marseille | Bishop Emeritus of Fréjus, France |
| 52.2 | Appointed | Gherardo Zandemaria † | Bishop of Piacenza, Italy |
| 25 Dec | 44.8 | Appointed | François-Hyacinthe de La Fruglaye de Kervers † | Bishop of Tréguier, France |