| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | 49.9 | Appointed | Joseph Adam Graf Arco † | Archbishop (Personal Title) of Seckau, Austria | Bishop |
| 72.2 | Died | Jean-Sébastien de Barral † | Bishop of Castres, France |
| Died | Rocco Maria Barsanti † | Bishop of Pesaro, Italy |
| 51.2 | Resigned | Jean-Baptiste-Charles-Marie de Beauvais † | Bishop of Senez, France | Bishop Emeritus |
| 24.0 | Ordained Priest | Aeneas Chisholm † | Priest | Vicar Apostolic of Highland District, Scotland, Great Britain |
| Appointed | Daniel Delany † | Coadjutor Bishop of Kildare and Leighlin, Ireland | Bishop |
| Died | Donato Antonio Giannelli † | Bishop of Bisceglie, Italy |
| Born | Denys Michel Hardaya † | Alep | Bishop of Alep (Syrian), Syria |
| 41.8 | Appointed | Johann Valentin Heimes † | Auxiliary Bishop of Mainz, Germany | Auxiliary Bishop of Worms, Germany |
| 76.2 | Died | Joaquín Herrera Bárcena, O.S.B. † | Bishop of Islas Canarias {Canary Islands}, Spain |
| Born | James Keating † | Coolnahorna | Bishop of Ferns, Ireland |
| 77.0 | Died | Józef Tadeusz Kierski † | Bishop of Przemyśl, Poland |
| Died | Peter Kilkelly, O.P. † | Bishop of Kilmacduagh, Ireland |
| Appointed | José da Avé-Maria Leite da Costa e Silva † | Bishop of Angra, Portugal |
| 49.0 | Appointed | Iraklij Listovskyj † | Bishop of Foreign Diocese |
| 57.0 | Appointed | Laurence Nihill, S.J. † | Bishop of Kilmacduagh, Ireland |
| Born | Michael Slattery † | Tipperary | Archbishop of Cashel (-Emly), Ireland |
| Appointed | André Teixeira Palha † | Bishop of Faro {Algarve}, Portugal |
| Born | Antonio Michele Vaglio † | Nardò | Bishop of Venosa, Italy |
| 32.9 | Incardinated | Johann Nepomuk Ritter von Dankesreither † | Priest of Wien {Vienna}, Austria | Bishop of Sankt Pölten, Austria |
| 6 Jan | | Born | Giuseppe Ugolini † | Macerata | Cardinal, Priest of the Roman Curia - Other |
| 16 Jan | | Born | Jean-Baptiste Bouvier † | Saint-Charles-la-Fôret | Bishop of Le Mans, France |
| 31 Jan | 67.3 | Died | João Cosme da Cunha (de Nossa Senhora da Porta), O.C.S.A. † | Cardinal, Archbishop of Évora, Portugal |
| 2 Feb | 42.4 | Ordained Bishop | Cayetano Da Annunciação Brandão, T.O.R. † | Bishop of Belém do Pará, Brazil | Archbishop of Braga, Portugal |
| 17 Feb | 49.2 | Appointed | Ildefonso Molina Santaella † | Bishop of Ciudad Rodrigo, Spain |
| 48.8 | Appointed | Antonio Sentmanat y Castellá † | Bishop of Avila, Spain | Cardinal, Patriarch of West Indies, Antilles |
| 66.4 | Appointed | Alfonso Solís Grajera, O.S. † | Bishop of Badajoz, Spain |
| 21 Feb | | Born | Francesco Serra Casano † | Naples | Cardinal, Archbishop of Capua, Italy |
| 24 Feb | 45.8 | Ordained Bishop | Alexandre da Sagrada Familia Ferreira da Silva, O.F.M. † | Bishop of Malacca, Singapore | Bishop of Angra, Portugal |
| 55.9 | Ordained Bishop | Vicente Ferreira da Rocha, O.P. † | Bishop of Castelo Branco, Portugal |
| 48.8 | Ordained Bishop | Antonio Sentmanat y Castellá † | Bishop of Avila, Spain | Cardinal, Patriarch of West Indies, Antilles |
| 25 Feb | | Born | Franz Großmann (Grossmann) † | Robawen | Auxiliary Bishop of Warmia, Poland |
| 28 Feb | | Born | Alexis Billiet † | Les Chapelles | Cardinal, Archbishop of Chambéry, France |
| 7 Mar | 55.9 | Installed | Vicente Ferreira da Rocha, O.P. † | Bishop of Castelo Branco, Portugal |
| 9 Mar | 45.2 | Ordained Bishop | Camillo de Simeoni † | Cardinal, Bishop of Sutri, Italy |
| 11 Mar | 15.5 | Professed | Antônio de São José Bastos, O.S.B. † | Member of Order of Saint Benedict | Bishop of Olinda, Brazil |
| 13 Mar | 74.5 | Died | Leopold Ernst Graf von Firmian † | Cardinal, Bishop of Passau, Germany |
| 15 Mar | 35.5 | Professed | Michal Mateusz Stadnicki, O.S.B.M. † | Priest of Order of St. Basil the Great | Bishop of Foreign Diocese |
| 23 Mar | 74.3 | Ordained Bishop | Manuel Buenaventura Figueroa Barrero † | Titular Archbishop of Laodicea in Phrygia | Patriarch of West Indies, Antilles |
| Born | Pedro José Zarandia Endara † | Lesaca | Bishop of Huesca, Spain |
| 3 Apr | 74.3 | Died | Manuel Buenaventura Figueroa Barrero † | Patriarch of West Indies, Antilles |
| Born | Joseph Ambrosius Geritz † | Seeburg | Bishop of Warmia, Poland |
| 4 Apr | 67.0 | Died | Joaquín Antonio Sánchez Ferragudo † | Bishop of Lérida, Spain |
| 5 Apr | 23.7 | Ordained Priest | Charles-Alexandre de Richery † | Priest | Archbishop of Aix (-Arles-Embrun), France |
| 7 Apr | | Born | Moritz-Fabian Roten † | Raron | Bishop of Sion {Sitten}, Switzerland |
| 19 Apr | 24.1 | Ordained Priest | Antoine de La Grange de Pons † | Priest | Bishop of Moulins, France |
| 26 Apr | | Born | Martino Orsino (Ursino) † | Catania | Bishop of Patti, Italy |
| 14 May | 74.7 | Died | Francisco Laso Santos de San Pedro † | Bishop of Santander, Spain |
| Died | Isidoro Sanchez de Luna, O.S.B. † | Archbishop of Salerno, Italy |
| 19 May | 49.3 | Appointed | Joseph Franz Anton Reichsgraf von Auersperg † | Cardinal, Bishop of Passau, Germany |
| 23 May | 66.8 | Died | Juan García Montenegro † | Bishop of Urgell, Spain |
| Born | Johann Peter von Richarz † | Würzburg | Bishop of Augsburg, Germany |
| 27 May | | Born | Luigi Frezza † | Civita Lavinia | Cardinal, Official Emeritus of the Secretariat of State |
| 2 Jun | | Born | Giuseppe Maria Maniscalco, O.F.M. † | Alessandria della Rocca | Bishop of Caltagirone, Italy |
| 4 Jun | 22.8 | Ordained Priest | Annibale Francesco Clemente Melchiore Girolamo Nicola della Genga † | Priest | Pope (Roma {Rome}, Italy) |
| 5 Jun | 61.3 | Died | Juan Molina Lario y Navarro † | Bishop of Málaga, Spain |
| 13 Jun | | Born | Basilio Antonio Carrasco Hernando, O. de M. † | Durón | Bishop of Ibiza, Spain |
| 14 Jun | 23.0 | Ordained Priest | Karl Rudolf von Buol-Schauenstein † | Priest of Chur, Switzerland | Bishop of Chur-Sankt Gallen, Switzerland |
| 24.0 | Ordained Priest | Lorenzo D'Antoni † | Priest | Titular Bishop of Germanicopolis |
| 23.2 | Ordained Priest | Josef von Hommer † | Priest of Trier, Germany | Bishop |
| 28.7 | Ordained Priest | Franciszek Skarbek von Malczewski † | Priest | Archbishop of Warszawa {Warsaw}, Poland |
| 15 Jun | 39.3 | Appointed | François de Fontanges † | Bishop of Nancy, France | Bishop of Autun, France |
| 39.4 | Appointed | Louis-Apolinaire de La Tour du Pin-Montauban † | Archbishop of Auch, France | Bishop of Troyes, France |
| 20 Jun | | Born | Manuel López Santisteban † | Guadix | Bishop Emeritus of Avila, Spain |
| 22 Jun | 61.0 | Ordained Bishop | Juam Manuel Antonio Ramos Lora, O.F.M. † | Bishop of Mérida, Venezuela |
| 60.7 | Ordained Bishop | Rafael José Verger y Suau, O.F.M. † | Bishop of Linares o Nueva León, Nuevo León, México |
| 23 Jun | 57.5 | Resigned | Francisco da Assumpção e Brito, O.S.A. † | Archbishop of Goa, India | Archbishop Emeritus |
| 5 Jul | 50.5 | Died | Joaquín Santiyán Valdivieso † | Archbishop of Tarragona, Spain |
| 7 Jul | | Born | Juan Cayetano José María Gómez de Portugal y Solis † | San Pedro Piedra Gorda | Bishop of Michoacán, Michoacán, México |
| 10 Jul | 44.7 | Appointed | Johann Joseph Schüller von Ehrenthal † | Titular Bishop of Danaba | Prefect of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany |
| 16 Jul | | Born | Jacopo De' Foretti † | Padova | Bishop of Chioggia, Italy |
| 18 Jul | 53.6 | Appointed | Manuel Abad Lasierra † | Bishop of Ibiza, Spain | Bishop Emeritus of Astorga, Spain |
| 43.5 | Appointed | José Nicolau de Azevedo Coutinho Gentil † | Titular Bishop of Zoara | Prelate of Goiás, Brazil |
| 64.8 | Appointed | José Escalzo Miguel, O.S.B. † | Bishop of Cádiz, Spain |
| 39.4 | Confirmed | François de Fontanges † | Bishop of Nancy, France | Bishop of Autun, France |
| 70.9 | Appointed | Carlo Vittorio Amedeo delle Lanze † | Cardinal-Priest of S. Lorenzo in Lucina | Cardinal, Prefect of the Congregation of the Council |
| 39.5 | Confirmed | Louis-Apolinaire de La Tour du Pin-Montauban † | Archbishop of Auch, France | Bishop of Troyes, France |
| 48.5 | Appointed | José do Menino Jesus (Deus), O.C.D. † | Bishop of Viseu, Portugal |
| 50.7 | Appointed | Antônio de Pádua e Belas, O.F.M. † | Bishop of São Luís do Maranhão, Brazil | Bishop Emeritus |
| 53.0 | Appointed | Carlo Maurizio Peiretti † | Bishop of Tortona, Italy |
| 56.6 | Confirmed | Franz Joseph Sigismund von Roggenbach † | Bishop of Basel, Switzerland |
| 57.4 | Appointed | Manuel de Santa Catarina, O.C.D. † | Archbishop of Goa, India |
| 52.5 | Appointed | Giovanni Andrea Serrao † | Bishop of Potenza, Italy |
| 36.5 | Appointed | Maria José a Santo Tomas, O.P. † | Prelate of Mozambico, Mozambique |
| 36.5 | Appointed | Maria José a Santo Tomas, O.P. † | Titular Bishop of Pentacomia | Prelate of Mozambico, Mozambique |
| 60.8 | Appointed | Stephan Alexander Würdtwein † | Auxiliary Bishop of Worms, Germany |
| 60.8 | Appointed | Stephan Alexander Würdtwein † | Titular Bishop of Helenopolis in Bithynia | Auxiliary Bishop of Worms, Germany |
| 20 Jul | 45.4 | Appointed | Giuseppe Gioacchino Lovera † | Bishop of Saluzzo, Italy |
| 10 Aug | 57.6 | Died | Francisco de São Simão, O.F.M. † | Bishop of Santiago de Cabo Verde |
| 17 Aug | 53.6 | Ordained Bishop | Manuel Abad Lasierra † | Bishop of Ibiza, Spain | Bishop Emeritus of Astorga, Spain |
| 64.9 | Ordained Bishop | José Escalzo Miguel, O.S.B. † | Bishop of Cádiz, Spain |
| 39.4 | Ordained Bishop | François de Fontanges † | Bishop of Nancy, France | Bishop of Autun, France |
| 49.7 | Ordained Bishop | Ildefonso Molina Santaella † | Bishop of Ciudad Rodrigo, Spain |
| 24 Aug | 59.7 | Ordained Bishop | Berndard-Emmanuel (François-Pierre) de Lenzbourg, O. Cist. † | Bishop of Lausanne, Switzerland |
| 30 Aug | 17.7 | Professed | St. Domingo Henares, O.P. † | Member of Order of Friars Preachers | Coadjutor Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viêt Nam |
| 31 Aug | 60.9 | Ordained Bishop | Stephan Alexander Würdtwein † | Titular Bishop of Helenopolis in Bithynia | Auxiliary Bishop of Worms, Germany |
| Sep | 35.3 | Ordained Priest | Alessandro Malvasia † | Priest | Cardinal, Cardinal-Priest of S. Croce in Gerusalemme |
| 20 Sep | 23.0 | Ordained Priest | Antonio Maria Trigona † | Priest | Archbishop Emeritus of Messina, Italy |
| 21 Sep | 79.9 | Died | Jacques-Marie de Caritat de Condorcet † | Bishop of Lisieux, France |
| 44.9 | Ordained Bishop | Johann Joseph Schüller von Ehrenthal † | Titular Bishop of Danaba | Prefect of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany |
| 29 Sep | 56.8 | Ordained Bishop | Franz Joseph Sigismund von Roggenbach † | Bishop of Basel, Switzerland |
| 3 Oct | | Born | Francisco Javier García Casarrubios y Melgar, O. Cist. † | Lillo | Bishop of Tui, Spain |
| 12 Oct | 23.0 | Ordained Priest | Alexander (Sandor) Rudnay Divékújfalusi † | Priest | Cardinal, Archbishop of Esztergom, Hungary |
| 3 Nov | | Born | Carlos Laborda Clau † | Burbuñales | Bishop of Palencia, Spain |
| 9 Nov | 45.7 | Installed | Giuseppe Gioacchino Lovera † | Bishop of Saluzzo, Italy |
| 20 Nov | 61.8 | Appointed | Alexander Franz Joseph Graf Engl von und zu Wagrain † | Bishop of Leoben, Austria |
| 34.8 | Appointed | Franz Xaver Altgraf von Salm-Reifferscheidt-Krautheim † | Cardinal, Bishop of Gurk, Austria |
| 30 Nov | 79.1 | Died | Felipe Beltrán Serrano † | Bishop of Salamanca, Spain |
| 5 Dec | | Died | Lourenço de Santa Maria † | Bishop of Faro {Algarve}, Portugal |
| 11 Dec | 52.3 | Appointed | Stanislaw Jan Siestrzencewicz Bohusz † | Archbishop of Mohilev, Belarus |
| 14 Dec | 44.0 | Ordained Bishop | José Nicolau de Azevedo Coutinho Gentil † | Titular Bishop of Zoara | Prelate of Goiás, Brazil |
| 51.2 | Ordained Bishop | Antônio de Pádua e Belas, O.F.M. † | Bishop of São Luís do Maranhão, Brazil | Bishop Emeritus |
| 46.4 | Ordained Bishop | Domingo a Rosario, O.P. † | Bishop of São Tomé e Príncipe |
| 15 Dec | 44.7 | Appointed | Francisco Casto Royo † | Titular Archbishop of Amida |
| 52.9 | Appointed | Innocenzo Conti † | Cardinal-Priest of S. Maria in Ara Coeli | Cardinal, Titular Archbishop of Tyrus |
| 60.3 | Appointed | Esteban Lorenzo de Tristán y Esmenota † | Bishop of Durango, Durango, México | Bishop of Guadalajara, Jalisco, México |
| 26.1 | Appointed | Lorenzo Gómez Haedo † | Bishop of Segorbe, Spain |
| 59.3 | Appointed | Agustín Lezo Palomeque † | Archbishop of Zaragoza, Spain |
| 51.6 | Appointed | Alfonso Marcos Llanes † | Archbishop of Sevilla {Seville}, Spain |
| 62.5 | Appointed | Antonio Andrés López Arroyo, O.F.M. † | Bishop of Astorga, Spain |
| 63.1 | Appointed | Sebastián Malvar y Pinto, O.F.M. † | Archbishop of Santiago de Compostela, Spain |
| 76.8 | Resigned | Nicola Molinari, O.F.M. Cap. † | Bishop of Ravello, Italy | Bishop Emeritus |
| 59.3 | Appointed | Francisco Antonio de San Miguel Iglesia Cajiga, O.S.H. † | Bishop of Michoacán, Michoacán, México |
| 53.2 | Appointed | Jerónimo María Torres † | Bishop of Lérida, Spain |
| 49.6 | Appointed | Francisco Veyán Mola † | Bishop of Vic, Spain |
| 20 Dec | 24.0 | Ordained Priest | Andrea Bratti † | Priest | Bishop of Forli, Italy |
| 23.5 | Ordained Priest | Joseph Ludwig Colmar † | Priest of Strasbourg, France | Bishop of Mainz, Germany |
| 22.4 | Ordained Priest | Karl Joseph Freiherr von Riccabona † | Priest of Regensburg, Germany | Bishop of Passau, Germany |
| 22.6 | Ordained Priest | Maria-Thaddeus von Trauttmansdorf Wiensberg † | Priest of Olomouc, Czech Republic | Cardinal, Archbishop |
| 61.2 | Installed | Rafael José Verger y Suau, O.F.M. † | Bishop of Linares o Nueva León, Nuevo León, México |
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