| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 61.9 | Ordained Bishop | Juan Ignacio de la Rocha † | Bishop of Michoacán, Michoacán, México |
| Appointed | José Fernández Díaz de la Madrid, O.F.M. † | Bishop of Cartagena, Colombia |
| 56.4 | Ordained Bishop | Juan Domingo González de la Reguera † | Bishop of Santa Cruz de la Sierra, Bolivia | Archbishop of Lima, Peru |
| 44.4 | Ordained Priest | Johann Karl Reichsgraf von Hohenzollern-Hechingen † | Priest of Wrocław, Poland | Bishop of Warmia, Poland |
| 33.1 | Incardinated | Anton Kautschitz † | Priest of Wien {Vienna}, Austria | Bishop of Ljubljana, Slovenia |
| 27.4 | Ordained Priest | Dominique Lacombe † | Priest | Bishop of Angoulême, France |
| Born | Benito Lascano y Castillo † | Córdoba | Bishop of Córdoba (Tucumán), Argentina |
| Born | Diego Martínez Carlón y Teruel † | Lorca | Bishop of Jaén, Spain |
| Born | Giuseppe Mancini † | | Archbishop of Siena, Italy |
| 53.0 | Appointed | Andrea Antonio Silverio Minucci † | Bishop of Rimini, Italy | Archbishop of Fermo, Italy |
| Born | Oliver O'Kelly † | Curramore | Archbishop of Tuam, Ireland |
| Born | Antonio Perchiacca † | Capua | Bishop of Trivento, Italy |
| 40.3 | Incardinated | Franz Freiherr von Raigesfeld, S.J. † | Priest of Trieste, Italy | Auxiliary Bishop of Ljubljana, Slovenia |
| Born | Nicolaus Rodrigues Pereira de Borja, C.M. † | | Bishop of Macau, China |
| Born | Fortunato de São Boaventura, O. Cist. † | Alcobaça | Archbishop of Évora, Portugal |
| Born | José Francisco da Soledade Bravo † | Serpa | Bishop of Portalegre, Portugal |
| 37.6 | Ordained Bishop | John Thomas Troy, O.P. † | Bishop of Ossory, Ireland | Archbishop of Dublin, Ireland |
| Resigned | Giacinto Amedeo Vagnone † | Bishop of Alba (Pompea), Italy | Bishop Emeritus |
| 46.7 | Incardinated | Sigismund Anton Graf von Hohenwart, S.J. † | Priest of Wien {Vienna}, Austria | Archbishop |
| 2 Jan | 61.9 | Died | Urbano Paracciani Rutili † | Cardinal, Archbishop of Fermo, Italy |
| 7 Jan | | Born | Gaspar Cos Soberón † | San Felices de Castillería | Bishop of Calahorra y La Calzada, Spain |
| 14 Jan | 61.1 | Ordained Bishop | Franz Xaver Twrdy † | Titular Bishop of Hippos | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 19 Jan | 39.7 | Ordained Bishop | Thomas Johann Kaspar Reichsgraf von Thun und Hohenstein † | Titular Bishop of Thyatira | Bishop of Passau, Germany |
| 26 Jan | | Born | Robert Gradwell † | Clifton-in-the-Fylde | Coadjutor Vicar Apostolic of London District, England, Great Britain |
| 30 Jan | | Born | José Vicente de Unda † | Guanare | Bishop of Mérida, Venezuela |
| 31 Jan | 64.2 | Died | Ján Gustíni-Zubrohlavský † | Bishop of Nitra, Slovakia |
| Feb | | Born | Mariano Brasca Bartocci † | Terra di S. Anatolia | Bishop of Amelia, Italy |
| 6 Feb | 54.1 | Died | Santiago Hernández, O.P. † | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viêt Nam |
| 14 Feb | 55.6 | Resigned | Bernardino Giraud † | Archbishop of Ferrara, Italy | Cardinal, Archbishop Emeritus |
| 17 Feb | 58.7 | Appointed | Hyacinthe-Sigismond Gerdil, B. † | Titular Bishop of Dibon | Cardinal, Cardinal-Priest of S. Cecilia |
| 63.6 | Appointed | Antonio Manuel Hartalejo López, O. de M. † | Bishop of Vic, Spain |
| 60.5 | Appointed | Lorenzo Lay Anzano, O.P. † | Bishop of Albarracin, Spain | Bishop of Segorbe, Spain |
| 33.0 | Appointed | Alessandro Mattei † | Archbishop of Ferrara, Italy | Cardinal, Bishop of Ostia (-Velletri), Italy |
| 52.5 | Appointed | Francisco Antonio de San Miguel Iglesia Cajiga, O.S.H. † | Bishop of Comayagua, Honduras | Bishop of Michoacán, Michoacán, México |
| 58.4 | Appointed | Baltasar Yusta Navarro † | Bishop of Córdoba, Spain |
| 23 Feb | 33.0 | Ordained Bishop | Alessandro Mattei † | Archbishop of Ferrara, Italy | Cardinal, Bishop of Ostia (-Velletri), Italy |
| 27 Feb | 68.3 | Died | Johann Anton Freiherr von Federspiel † | Bishop of Chur, Switzerland |
| 2 Mar | 58.7 | Ordained Bishop | Hyacinthe-Sigismond Gerdil, B. † | Titular Bishop of Dibon | Cardinal, Cardinal-Priest of S. Cecilia |
| 3 Mar | | Born | Franciso López Borricón † | Hornillayuso | Bishop of Mondoñedo, Spain |
| 4 Mar | 86.0 | Died | Pierre-Herman Dosquet, P.S.S. † | Bishop Emeritus of Québec, Québec, Canada |
| 9 Mar | 44.5 | Resigned | Eustache Federl † | Vicar Apostolic of Malabar, India |
| 22.9 | Ordained Priest | Jean Lambert de Hannotte † | Priest | Titular Bishop of Teos |
| 63.7 | Ordained Bishop | Antonio Manuel Hartalejo López, O. de M. † | Bishop of Vic, Spain |
| 48.1 | Ordained Bishop | Louis-Marie de Nicolay † | Bishop of Cahors, France |
| 11 Mar | 81.3 | Died | Francisco Javier de Luna Victoria y Castro † | Bishop of Trujillo, Peru |
| 13 Mar | | Born | Pedro José de Fonte y Hernández Miravete † | Linares de Mora, Spain | Archbishop Emeritus of México, Federal District |
| 15 Mar | | Born | Manuel Pires de Azevedo Loureiro † | Moreira de Santar | Bishop of Beja, Portugal |
| 28.1 | Ordained Priest | Franz Xaver Freiherr von Neveu † | Priest of Basel, Switzerland | Bishop |
| 20 Mar | 69.1 | Died | Jean-François-Joseph de Rochechouard de Faudoas † | Cardinal, Bishop of Laon, France |
| 21 Mar | | Born | José Miguel Gordoa y Barrios † | Sierra de Pines | Bishop of Guadalajara, Jalisco, México |
| 23 Mar | 53.6 | Installed | Esteban Lorenzo de Tristán y Esmenota † | Bishop of León en Nicaragua | Bishop of Guadalajara, Jalisco, México |
| 3 Apr | 58.0 | Died | Gabriel Jan Podoski † | Archbishop of Gniezno, Poland |
| 8 Apr | 28.5 | Ordained Priest | Karl Friedrich Freiherr von Wendt † | Priest of Hildesheim, Germany | Auxiliary Bishop |
| 15 Apr | | Born | Bl. Johann Nepomuk von Tschiderer zu Gleitheim † | Bolzano | Bishop of Trento, Italy |
| 16 Apr | 61.3 | Appointed | Dionys Graf von Rost † | Bishop of Chur, Switzerland |
| 21 Apr | 74.3 | Died | Charles-Marie de Quélen † | Bishop of Clamecy, France |
| 27 Apr | 38.3 | Appointed | Hugh O'Reilly † | Coadjutor Bishop of Clogher, Ireland | Bishop |
| 1 May | 53.9 | Resigned | Franz de Paula Xaver Ludwig Jakob Fürst von Breuner † | Bishop of Lavant, Slovenia | Bishop of Chiemsee, Germany |
| 4 May | 60.7 | Ordained Bishop | Lorenzo Lay Anzano, O.P. † | Bishop of Albarracin, Spain | Bishop of Segorbe, Spain |
| Born | José Agustín de la Sierra Mercado † | Copiapó | Bishop of La Serena, Chile |
| 6 May | 53.1 | Died | Buenaventura Córdoba Espinosa de la Cerda † | Cardinal, Patriarch of West Indies, Antilles |
| 11 May | | Born | Vinzenz Eduard Milde † | Brno, Czech Republic | Archbishop of Wien {Vienna}, Austria |
| 12 May | 69.8 | Appointed | Juan Bautista Cervera, O.F.M. † | Bishop of Cádiz, Spain |
| 62.2 | Appointed | Juan Ignacio de la Rocha † | Bishop of Michoacán, Michoacán, México |
| 69.4 | Appointed | Andrés Pérez Bermúdez, O.F.M. † | Bishop of Jaca, Spain |
| 38.2 | Appointed | Domenico Spinucci † | Bishop of Macerata-Tolentino, Italy | Cardinal, Archbishop of Benevento, Italy |
| 13 May | 70.2 | Died | Juan Sáenz de Bururaga † | Archbishop of Zaragoza, Spain |
| 17 May | 38.2 | Ordained Priest | Philipp Franz Wilderich Nepomuk Graf von Walderdorf † | Priest of Trier, Germany | Bishop of Speyer, Germany |
| 18 May | 56.6 | Appointed | Matthias Franz Reichsgraf von Chorinsky † | Bishop of Brno, Czech Republic |
| 22 May | | Born | Luis María Borbón Vallabriga † | Cadalso de la Vidrios | Cardinal, Archbishop Emeritus of Toledo, Spain |
| 31 May | 33.0 | Appointed | Vinzenz Joseph Franz Sales Graf von Schrattenbach † | Bishop of Lavant, Slovenia | Bishop of Brno, Czech Republic |
| 6 Jun | 29.1 | Ordained Priest | Custodio de Santa Ana d'Almeida, O.A.D. † | Priest of Agostiniani Scalzi | Bishop of São Tomé e Príncipe |
| 33.0 | Ordained Bishop | Vinzenz Joseph Franz Sales Graf von Schrattenbach † | Bishop of Lavant, Slovenia | Bishop of Brno, Czech Republic |
| 20 Jun | | Born | Jean-Jacques Lartigue, P.S.S. † | Montréal | Bishop of Montréal, Québec, Canada |
| 22 Jun | | Born | Andrzej Alojzy Ankwicz † | Kraków | Archbishop of Praha {Prague}, Czech Republic |
| 63.1 | Died | Ludwig Philipp Behelm † | Auxiliary Bishop of Mainz, Germany |
| 22.4 | Ordained Priest | Raffaele Longobardi † | Priest | Bishop of Telese o Cerreto Sannita, Italy |
| 23 Jun | 51.0 | Appointed | Juan Díaz de La Guerra † | Bishop of Sigüenza, Spain |
| 47.9 | Appointed | Manuel Ferrer y Figueredo † | Archbishop (Personal Title) of Zamora, Spain | Bishop of Málaga, Spain |
| 59.0 | Elevated to Cardinal | Hyacinthe-Sigismond Gerdil, B. † | In Pectore | Cardinal, Cardinal-Priest of S. Cecilia |
| 55.5 | Elevated to Cardinal | Andrea Gioannetti, O.S.B. † | Cardinal, Archbishop of Bologna, Italy |
| 52.9 | Elevated to Cardinal | Bernardino Honorati † | Cardinal, Bishop of Senigallia, Italy |
| 64.2 | Appointed | Antoni Kazimierz Ostrowski † | Archbishop of Gniezno, Poland |
| 13 Jul | 69.6 | Ordained Bishop | Andrés Pérez Bermúdez, O.F.M. † | Bishop of Jaca, Spain |
| 25 Jul | 72.7 | Died | Sebastián Flórez Pavón † | Bishop of Cuenca, Spain |
| 26 Jul | | Born | Ignaz Franz Sales Zimmermann † | Windisch Feistritz | Bishop of Lavant, Slovenia |
| 28 Jul | 53.0 | Appointed | Bernardino Honorati † | Archbishop (Personal Title) of Senigallia, Italy | Cardinal, Bishop |
| 53.0 | Installed | Bernardino Honorati † | Cardinal-Priest of Ss. Marcellino e Pietro | Cardinal, Bishop of Senigallia, Italy |
| 61.5 | Confirmed | Dionys Graf von Rost † | Bishop of Chur, Switzerland |
| 29 Jul | 38.6 | Ordained Bishop | Hugh O'Reilly † | Coadjutor Bishop of Clogher, Ireland | Bishop |
| 10 Aug | 33.6 | Appointed | Louis-Apolinaire de La Tour du Pin-Montauban † | Bishop of Nancy, France | Bishop of Troyes, France |
| 15 Aug | 29.4 | Ordained Priest | Michel Bradács † | Priest | Auxiliary Bishop of Mukacheve (Ruthenian), Ukraine |
| 1 Sep | | Born | Ramón Montero † | Fuencarral | Archbishop of Burgos, Spain |
| 6 Sep | 64.9 | Died | Juan Lario Lancis † | Archbishop of Tarragona, Spain |
| 14 Sep | 61.7 | Ordained Bishop | Dionys Graf von Rost † | Bishop of Chur, Switzerland |
| 20 Sep | 24.3 | Ordained Priest | François-Melchior-Charles-Bienvenu de Miollis † | Priest | Bishop Emeritus of Digne, France |
| 29.1 | Ordained Priest | Luiz de Brito Homem † | Priest | Bishop of São Luís do Maranhão, Brazil |
| 27.2 | Ordained Priest | Joaquim Ferreira de Carvalho † | Priest | Bishop of São Luís do Maranhão, Brazil |
| 23.2 | Ordained Priest | Giulio Rossi † | Priest | Bishop of Pescia, Italy |
| 22 Sep | | Born | Mariano Talavera y Garcés † | Coro | Vicar Apostolic Emeritus of Santo Tomás de Guayana, Venezuela |
| 6 Oct | 48.3 | Appointed | Antonín Theodor Colloredo von Wallsee und Mels † | Bishop of Olomouc, Czech Republic | Cardinal, Archbishop of Olomouc, Czech Republic |
| 15 Oct | | Born | Rafael Manuel José Benito de Vélez Téllez, O.F.M. Cap. † | Vélez de Benaudalla | Archbishop of Santiago de Compostela, Spain |
| 16 Oct | 40.8 | Appointed | Louis-André de Grimaldi † | Bishop of Noyon, France | Bishop Emeritus |
| 19 Oct | 56.9 | Appointed | Sebastián Malvar y Pinto, O.F.M. † | Bishop of Buenos Aires, Argentina | Archbishop of Santiago de Compostela, Spain |
| 20 Oct | | Born | Adalbert Freiherr von Pechmann † | Regen | Auxiliary Bishop of Passau, Germany |
| 27 Oct | 80.7 | Died | Charles-Antoine de la Roche-Aymon † | Cardinal, Archbishop of Reims, France |
| 41.0 | Succeeded | Alexandre-Angélique Talleyrand de Périgord † | Archbishop of Reims, France | Cardinal, Archbishop of Paris, France |
| 22 Nov | | Died | Pedro de Melo e Brito da Silveira Alvim † | Bishop of Portalegre, Portugal |
| 5 Dec | 48.4 | Appointed | Antonín Theodor Colloredo von Wallsee und Mels † | Cardinal, Archbishop of Olomouc, Czech Republic |
| 7 Dec | 34.0 | Appointed | Jean-Baptiste-Marie de Maillé de la Tour-Landry † | Bishop of Gap, France | Bishop of Rennes, France |
| 15 Dec | 57.2 | Confirmed | Matthias Franz Reichsgraf von Chorinsky † | Bishop of Brno, Czech Republic |
| 53.3 | Appointed | Cayetano Antonio Cuadrillero Mota † | Bishop of León, Spain |
| 59.5 | Appointed | Hyacinthe-Sigismond Gerdil, B. † | Cardinal-Priest of S. Giovanni a Porta Latina | Cardinal, Cardinal-Priest of S. Cecilia |
| 59.5 | Elevated to Cardinal | Hyacinthe-Sigismond Gerdil, B. † | Cardinal, Cardinal-Priest of S. Cecilia |
| 55.9 | Appointed | Andrea Gioannetti, O.S.B. † | Cardinal, Archbishop of Bologna, Italy |
| 33.9 | Confirmed | Louis-Apolinaire de La Tour du Pin-Montauban † | Bishop of Nancy, France | Bishop of Troyes, France |
| 57.1 | Confirmed | Sebastián Malvar y Pinto, O.F.M. † | Bishop of Buenos Aires, Argentina | Archbishop of Santiago de Compostela, Spain |
| 63.0 | Appointed | José Antonio Umeres de Miranda (Humeres) † | Bishop of Panamá |
| 20 Dec | 24.7 | Ordained Priest | Giovanni Marchetti † | Priest | Titular Archbishop of Ancyra |
| 31 Dec | 23.0 | Ordained Priest | João de Magalhães Avelar † | Priest | Bishop of Porto, Portugal |