| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 73.7 | Resigned | Juan Tomás de Boxadors y Sureda de San Martín, O.P. † | Master General of Order of Friars Preachers | Cardinal, Cardinal-Priest of San Sisto |
| 24.8 | Ordained Priest | Bernardo García y Hernández (Fernandez Perdigon), O.F.M. † | Priest of Order of Friars Minor | Bishop of Nueva Caceres, Philippines |
| 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 von Hohenzollern-Hechingen † | Priest of Wrocław (Breslau), Poland | Bishop of Warmia (Ermland), Poland |
| Born | Ignatius Petrus Jarweh (Jaroue) † | Alep | Patriarch of Antiochia {Antioch} (Syrian), Lebanon |
| 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 |
| 54.0 | Resigned | François Magni, O.F.M. † | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China | Vicar Apostolic Emeritus |
| Born | Oliver O’Kelly † | Curramore | Archbishop of Tuam, Ireland |
| 40.3 | Incardinated | Franz von Raigesfeld, S.J. † | Priest of Trieste, Italy | Auxiliary Bishop of Ljubljana, Slovenia |
| Born | Nicolaus Rodrigues Pereira de Borja, C.M. † | Corticada | Bishop-Elect of Macau, China |
| 46.7 | Incardinated | Sigismund Anton von Hohenwart, S.J. † | Priest of Wien {Vienna}, Austria | Archbishop |
| Jan | 74.9 | Died | Franz Anton von Engel in Wagrain † | Bishop of Csanád, Hungary |
| 1 Jan | | Born | Gaspar Cos y Soberón † | San Felices de Castillería | Bishop of Calahorra y La Calzada, Spain |
| 2 Jan | 61.9 | Died | Urbano Paracciani Rutili † | Cardinal, Archbishop of Fermo, Italy |
| 6 Jan | 79.2 | Died | Luigi Maria Torreggiani † | Cardinal, Cardinal-Deacon of Sant’Agata de’ Goti |
| 11 Jan | | Appointed | Nathaniel Bürger, O.F.M. † | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China | Vicar Apostolic of Nanking [Nanjing], China |
| Appointed | Nathaniel Bürger, O.F.M. † | Titular Bishop of Dercos (Dercus) | Vicar Apostolic of Nanking [Nanjing], China |
| 66.7 | Died | Carlo Augusto Peruzzini, B. † | Bishop of Macerata e Tolentino, Italy |
| Born | Adeodato Venturini, O.S.B. † | Pontremoli | Bishop of Pontremoli, Italy |
| 14 Jan | 61.1 | Ordained Bishop | Franz Xaver Twrdy † | Titular Bishop of Hippo Diarrhytus | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 18 Jan | | Born | Dominico Angelini † | Villafranca | Auxiliary Bishop of Sabina (-Farfa), Italy |
| 19 Jan | 67.0 | Died | Henri-Jacques de Montesquiou-Poylobon † | Bishop of Sarlat, France |
| 39.7 | Ordained Bishop | Thomas Johann Kaspar von Thun und Hohenstein † | Titular Bishop of Thyatira | Bishop of Passau, Germany |
| 25 Jan | 79.4 | Died | Francesco Rivera † | Archbishop of Manfredonia, Italy |
| 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 |
| 48.1 | Resigned | Giacinto Amedeo Vagnone † | Bishop of Alba (Pompea), Italy | Bishop Emeritus |
| 31 Jan | 64.2 | Died | Ján Gustíni-Zubrohlavský † | Bishop of Nitra, Slovakia |
| 6 Feb | 54.1 | Died | Santiago Hernández, O.P. † | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 14 Feb | 55.6 | Resigned | Bernardino Giraud † | Archbishop of Ferrara, Italy | Cardinal, Archbishop Emeritus |
| 17 Feb | 61.7 | Appointed | Antonio Casali † | Cardinal, Cardinal-Deacon of Santa Maria ad Martyres |
| 60.1 | Appointed | Joseph-Dominique de Cheylus † | Bishop of Bayeux, France |
| 58.7 | Appointed | Hyacinthe-Sigismond Gerdil, B. † | Titular Bishop of Dibon (Dibona) | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 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, Cardinal-Bishop of Ostia (e Velletri) |
| 48.1 | Appointed | Louis-Marie de Nicolay † | Bishop of Cahors, France |
| 57.7 | Appointed | Domenico Orsini d’Aragona † | Cardinal-Deacon of Sant’Agata de’ Goti | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
| 67.1 | Appointed | Giovanni Pergolini † | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 37.1 | Appointed | Luigi Maria Pirelli, C.R. † | Bishop of Teramo, Italy | Archbishop of Trani e Bisceglie, Italy |
| 67.4 | Appointed | Josephus Proszynski † | Titular Bishop of Mennith |
| 52.5 | Appointed | Francisco Antonio de San Miguel Iglesia Cajiga, O.S.H. † | Bishop of Comayagua, Honduras | Bishop of Michoacán, México |
| 40.7 | Appointed | Giuseppe Maria Terzi † | Bishop of Montefeltro, Italy |
| 58.4 | Appointed | Baltasar Yusta Navarro † | Bishop of Córdoba, Spain |
| 19 Feb | 72.7 | Died | Marco De Simone † | Bishop of Troia, Italy |
| 23 Feb | | Born | Mariano Brasca Bartocci † | Terra di Sant'Anatolia | Bishop Emeritus of Amelia, Italy |
| 33.0 | Ordained Bishop | Alessandro Mattei † | Archbishop of Ferrara, Italy | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 37.1 | Ordained Bishop | Luigi Maria Pirelli, C.R. † | Bishop of Teramo, Italy | Archbishop of Trani e Bisceglie, Italy |
| 24 Feb | 40.7 | Ordained Bishop | Giuseppe Maria Terzi † | Bishop of Montefeltro, Italy |
| 27 Feb | 68.3 | Died | Johann Anton von Federspiel † | Bishop of Chur, Switzerland |
| 2 Mar | 58.7 | Ordained Bishop | Hyacinthe-Sigismond Gerdil, B. † | Titular Bishop of Dibon (Dibona) | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 67.6 | Died | Marco Molin, O.S.B. † | Bishop of Bergamo, Italy |
| 3 Mar | | Born | Franciso López Borricón † | Hornillayuso | Bishop of Mondoñedo, Spain |
| Born | Luigi Ugolini † | Monte Colombo | Bishop of Fossombrone, Italy |
| 4 Mar | 86.0 | Died | Pierre-Herman Dosquet, P.S.S. † | Bishop Emeritus of Québec, Canada |
| 9 Mar | 44.5 | Resigned | Franciscus Salesius (Eustache) Federl, O.C.D. † | 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 |
| 48.2 | 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 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 Nicaragua | Bishop of Guadalajara, Jalisco, México |
| 29 Mar | 24.3 | Ordained Priest | François de Pierre de Bernis † | Priest | Archbishop of Rouen, France |
| Born | Antonio Perchiacca † | Capua | Bishop of Trivento, Italy |
| 1 Apr | 80.0 | Died | Giuseppe Agostino Delbecchi, Sch. P. † | Archbishop of Cagliari, Italy |
| 3 Apr | 58.0 | Died | Gabriel Jan Podoski † | Archbishop of Gniezno, Poland |
| 6 Apr | 44.3 | Ordained Bishop | Paul Dovanlia † | Bishop of Nicopoli, Bulgaria |
| 7 Apr | 75.1 | Died | Salvator dos Reis, S.J. † | Archbishop of Cranganore (Angamala), India |
| 8 Apr | 28.5 | Ordained Priest | Karl Friedrich von Wendt † | Priest of Hildesheim, Germany | Auxiliary Bishop |
| 15 Apr | 40.5 | Appointed | Joseph-Anne-Luc Falcombelle de Ponte d’Albaret † | Bishop of Sarlat, France |
| Born | Bl. Johann Nepomuk von Tschiderer zu Gleitheim † | Bolzano | Bishop of Trento, Italy |
| 16 Apr | 61.3 | Selected | Dionys von Rost † | Bishop of Chur, Switzerland |
| 20 Apr | 66.6 | Died | Giovanni Battista Bavestrelli † | Bishop Emeritus of Chios (Scio), Greece |
| 76.4 | Died | Francesco Franco † | Bishop of Nicotera, Italy |
| 21 Apr | 74.3 | Died | Charles-Marie de Quélen † | Titular Bishop of Bethleem |
| 27 Apr | 38.3 | Appointed | Hugh O’Reilly † | Coadjutor Bishop of Clogher, Ireland | Bishop |
| 30 Apr | | Born | Fortunato de São Boaventura, O. Cist. † | Alcobaça | Archbishop of Évora, Portugal |
| 1 May | 53.9 | Resigned | Franz de Paula Xaver Ludwig Jakob von Breuner † | Bishop of Lavant, Slovenia | Bishop of Chiemsee, Germany |
| 2 May | 67.1 | Died | György Klimó † | Bishop of Pécs, Hungary |
| 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, Spain |
| 10 May | 70.1 | Died | Francesco Castellini † | Bishop of Rimini, Italy |
| 11 May | | Born | Vinzenz Eduard Milde † | Brno, Czech Republic | Archbishop of Wien {Vienna}, Austria |
| 12 May | 57.4 | Appointed | Josephus Bajzath † | Bishop of Veszprém, Hungary |
| 46.6 | Appointed | Felix Willem Antonius Brenart † | Bishop of Brugge {Bruges}, Belgium |
| 69.8 | Appointed | Juan Bautista Cervera, O.F.M. † | Bishop of Cádiz, Spain |
| 62.2 | Appointed | Juan Ignacio de la Rocha † | Bishop of Michoacán, México |
| 56.3 | Appointed | Giovanni Giacomo Onorati † | Bishop of Troia, Italy |
| 69.4 | Appointed | Andrés Pérez Bermúdez, O.F.M. † | Bishop of Jaca, Spain |
| 38.2 | Appointed | Domenico Spinucci † | Bishop of Macerata e Tolentino, Italy | Cardinal, Archbishop of Benevento, Italy |
| 13 May | 70.2 | Died | Juan Sáenz de Bururaga † | Archbishop of Zaragoza, Spain |
| 16 May | | Appointed | Anthony Coyle † | Coadjutor Bishop of Raphoe, Ireland | Bishop |
| Appointed | Anthony Coyle † | Titular Bishop of Loryma | Bishop of Raphoe, Ireland |
| 38.4 | Appointed | Hugh O’Reilly † | Titular Bishop of Curium | Bishop of Clogher, Ireland |
| 17 May | 38.2 | Ordained Priest | Philipp Franz Wilderich Nepomuk von Walderdorf † | Priest of Trier, Germany | Bishop of Speyer, Germany |
| 18 May | 56.6 | Selected | Matthias Franz von Chorinsky † | Bishop of Brno, Czech Republic |
| 22 May | | Born | Luis María Borbón Vallabriga † | Cadalso de la Vidrios | Cardinal, Archbishop Emeritus of Toledo, Spain |
| 23 May | 70.6 | Appointed | Francesco Antonio Attaffi † | Bishop of Nicotera, Italy |
| 24 May | 23.0 | Ordained Priest | Giovanni Antonio de Fulgure, C.M. † | Priest of Congregation of the Mission | Archbishop of Taranto, Italy |
| 43.5 | Ordained Priest | Giovanni Vincenzo Monforte † | Priest | Archbishop of Napoli {Naples}, Italy |
| 29 May | 86.4 | Died | Mario Antonio Maffei † | Bishop of Foligno, Italy |
| 31 May | 33.0 | Appointed | Vinzenz Joseph Franz Sales von Schrattenbach † | Bishop of Lavant, Slovenia | Bishop of Brno, Czech Republic |
| 1 Jun | 29.1 | Ordained Deacon | Custodio de Santa Ana d’Almeida, O.A.D. † | Deacon of Agostiniani Scalzi | Bishop of São Tomé e Príncipe |
| 4 Jun | 43.0 | Appointed | Cyprian Stecki † | Bishop |
| 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 von Schrattenbach † | Bishop of Lavant, Slovenia | Bishop of Brno, Czech Republic |
| 7 Jun | | Born | Giovanni Battista Rossi † | Signe | Bishop of Pistoia e Prato, Italy |
| 8 Jun | 38.1 | Ordained Bishop | John Thomas Troy, O.P. † | Bishop of Ossory, Ireland | Archbishop of Dublin, Ireland |
| 9 Jun | | Born | Ângelo de Nossa Senhora da Boa-Morte, O.F.M. † | Covilhá | Bishop of Elvas, Portugal |
| 11 Jun | 48.3 | Installed | Joseph-Vincent de Beni † | Bishop of Carpentras, France | Bishop Emeritus |
| 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 | 52.6 | Elevated to Cardinal | Vincenzo Maria Altieri † | In Pectore | |
| 45.2 | Appointed | Filippo de Aprile † | Bishop of Teano, Italy | Bishop of Melfi e Rapolla, Italy |
| 58.4 | Appointed | Basilius Bosicskovich, O.S.B.M. † | Bishop of Križevci (Kreutz) (Križevci), Croatia |
| 45.5 | Appointed | Benedetto Cervone † | Bishop of L’Aquila, Italy |
| 51.0 | Appointed | Juan Díaz de La Guerra † | Bishop of Sigüenza, Spain |
| 50.9 | Appointed | Moyses Drágosi † | Bishop of Oradea Mare {Gran Varadino} (Romanian), Romania |
| 47.9 | Appointed | Manuel Ferrer y Figueredo † | Archbishop (Personal Title) of Zamora, Spain | Bishop of Málaga, Spain |
| 44.5 | Appointed | Tommaso Maria Francone, C.R. † | Archbishop of Manfredonia, Italy |
| 59.0 | Elevated to Cardinal | Hyacinthe-Sigismond Gerdil, B. † | In Pectore | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 55.5 | Elevated to Cardinal | Andrea Gioannetti, O.S.B. † | In Pectore | Cardinal, Archbishop of Bologna, Italy |
| 52.9 | Elevated to Cardinal | Bernardino Honorati † | Cardinal, Bishop of Senigallia, Italy |
| 47.3 | Elevated to Cardinal | Giovanni Ottavio Manciforte Sperelli † | In Pectore | Cardinal, Titular Archbishop |
| 55.6 | Elevated to Cardinal | Marcantonio Marcolini † | Cardinal, Cardinal-Priest of Sant’Onofrio |
| 44.1 | Appointed | Ignatius Nagy de Sellye † | Bishop of Székesfehérvár (Albareale), Hungary |
| 64.2 | Appointed | Antoni Kazimierz Ostrowski † | Archbishop of Gniezno, Poland |
| 49.6 | Elevated to Cardinal | Guglielmo Pallotta † | Cardinal, Prefect of the Congregation of the Council |
| 32.1 | Appointed | Józef Ignacy Tadeusz Rybiński † | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 49.5 | Elevated to Cardinal | Gregorio Antonio Maria Salviati † | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
| 42.5 | Appointed | János Szily † | Bishop of Szombathely, Hungary |
| 24 Jun | 45.2 | Ordained Bishop | Filippo de Aprile † | Bishop of Teano, Italy | Bishop of Melfi e Rapolla, Italy |
| 70.7 | Ordained Bishop | Francesco Antonio Attaffi † | Bishop of Nicotera, Italy |
| 45.5 | Ordained Bishop | Benedetto Cervone † | Bishop of L’Aquila, Italy |
| 29 Jun | 46.8 | Ordained Bishop | Felix Willem Antonius Brenart † | Bishop of Brugge {Bruges}, Belgium |
| 20.8 | Professed | José Maria de Melo, C.O. † | Member of Confederation of Oratorians of St. Philip Neri | Bishop Emeritus of Faro {Algarve}, Portugal |
| 30 Jun | 68.8 | Died | Nicola Gagliardi † | Bishop of Alatri, Italy |