| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Edmund Burke † | Maryborough, Ireland | Vicar Apostolic of Nova Scotia, Canada |
| 54.7 | Ordained Bishop | Diego Antonio de Parada † | Bishop of La Paz, Bolivia | Archbishop of Lima, Peru |
| 17.8 | Professed | Joseph-Antoine (Maxime) Guisolan, O.F.M. Cap. † | Member of Order of Friars Minor Capuchin | Bishop of Lausanne, Switzerland |
| Ordained Bishop | Michael Petros III Kasparian † | Bishop | Patriarch of Cilicia (Armenian), Lebanon |
| Born | de Longueville † | | Prefect Emeritus of Iles Saint-Pierre et Miquelon |
| 26.8 | Professed | François Pottier, M.E.P. † | Member of La Société des Missions Etrangères | Vicar Apostolic of Se-Ciuen (Setchoan), China |
| Born | Gregory Joseph Viegas, T.O.R. † | Lisboa | Bishop-Elect of Olinda, Brazil |
| 2 Jan | 76.1 | Died | Francesco Maria Miceli † | Bishop of Lipari, Italy |
| 5 Jan | 63.6 | Died | Andreas Jakob von Dietrichstein † | Archbishop of Salzburg, Austria |
| 9 Jan | | Born | Bernard-Claude Panet † | Québec | Archbishop of Québec, Canada |
| 19 Jan | | Born | Giovanni Francesco Guerrieri † | Fermo | Bishop Emeritus of Rimini, Italy |
| 20 Jan | 68.2 | Died | Severino Antonio Missini † | Bishop of Borgo San Donnino, Italy |
| 27 Jan | 72.0 | Died | Gaetano Costa, O.F.M. † | Bishop of Crotone (Cotrone), Italy |
| 29 Jan | 32.4 | Appointed | Bartolomeu Manoel Mendes dos Reis † | Bishop of Macau, China | Bishop Emeritus of Mariana, Brazil |
| 49.3 | Appointed | Antonio Nogueira † | Bishop of São Tomé e Príncipe |
| 52.1 | Died | Lawrence Richardson, O.P. † | Bishop of Kilmore, Ireland |
| 55.7 | Appointed | Józef Eustachy Szembek † | Bishop of Płock, Poland |
| 45.6 | Appointed | Pedro Jacinto Valente, O. do Cristo † | Bishop of Santiago de Cabo Verde |
| Feb | | Born | Alessandro Tommasini † | Diminniti | Archbishop of Reggio Calabria, Italy |
| 3 Feb | 63.1 | Died | Protacio Cabezas † | Bishop of Cebu, Philippines |
| 6 Feb | 68.0 | Installed | Amand Buseck, O.S.B. † | Bishop of Fulda, Germany |
| 8 Feb | | Selected | Nicholas Madgett † | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland |
| Selected | William O’Meara † | Bishop of Killaloe, Ireland |
| 11 Feb | | Ordained Bishop | Nicholas Madgett † | Bishop of Killaloe, Ireland | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland |
| 16 Feb | 89.4 | Died | Tommaso Ruffo † | Cardinal, Archbishop Emeritus of Ferrara, Italy |
| 17 Feb | 46.5 | Died | Carlo Rosati † | Bishop of Alife, Italy |
| 22 Feb | 65.7 | Died | Antonio Maria Ruffo † | Cardinal, Cardinal-Priest of San Silvestro in Capite |
| 23 Feb | | Confirmed | Nicholas Madgett † | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland |
| Confirmed | William O’Meara † | Bishop of Killaloe, Ireland |
| 24 Feb | 66.8 | Installed | José Francisco de San Buenaventura Martínez de Tejada y Díez de Velasco, O.F.M. † | Bishop of Guadalajara, Jalisco, México |
| 31.0 | Ordained Bishop | Johann Hildebrand Roten † | Bishop of Sion {Sitten}, Switzerland |
| 4 Mar | 55.3 | Ordained Bishop | Carlos Antonio Riomol Quiroga † | Bishop of Mondoñedo, Spain |
| 12 Mar | 44.8 | Appointed | Girolamo Colonna di Sciarra † | Cardinal-Deacon of San Lorenzo in Damaso | Cardinal, Cardinal-Deacon of Sant’Agata de’ Goti |
| 35.2 | Appointed | François-d’Etienne de Saint-Jean de Prunières † | Bishop of Grasse, France |
| 39.8 | Appointed | Tommaso Giannelli † | Bishop of Termoli, Italy |
| 49.1 | Appointed | Bartolomeo Gradenigo † | Coadjutor Archbishop of Udine, Italy | Archbishop |
| Born | Benito Lué y Riega † | Lastres, Spain | Bishop of Buenos Aires, Argentina |
| 63.1 | Appointed | Marcello Papiniano-Cusani † | Archbishop of Otranto, Italy | Archbishop Emeritus of Palermo, Italy |
| 56.3 | Appointed | Paulus de Révay † | Auxiliary Bishop of Esztergom, Hungary |
| 56.3 | Appointed | Paulus de Révay † | Titular Bishop of Dibon (Dibona) | Auxiliary Bishop of Esztergom, Hungary |
| 52.6 | Appointed | Diego Rojas Contreras † | Bishop of Cartagena (en España) |
| 56.9 | Appointed | Innocenzo Sanseverino † | Bishop of Alife, Italy | Bishop Emeritus |
| 13 Mar | 72.1 | Died | Antonio Saverio Gentili † | Cardinal, Prefect of the Congregation of the Council |
| 17 Mar | 22.8 | Ordained Priest | Pál László Esterházy † | Priest | Bishop of Pécs, Hungary |
| 18 Mar | | Born | Domenico Antonio Cimaglia † | San Georgii la Molara | Bishop of Molfetta, Italy |
| 39.8 | Ordained Bishop | Tommaso Giannelli † | Bishop of Termoli, Italy |
| 63.1 | Ordained Bishop | Marcello Papiniano-Cusani † | Archbishop of Otranto, Italy | Archbishop Emeritus of Palermo, Italy |
| 30 Mar | 58.3 | Appointed | Pedro Agustín Morell de Santa Cruz y Lora † | Bishop of Santiago de Cuba |
| 3 Apr | | Appointed | Andrew Campbell † | Bishop of Kilmore, Ireland |
| 50.3 | Selected | Juan de La Fuente Yepes † | Bishop of Nueva Segovia, Philippines |
| 5 Apr | 55.1 | Selected | Siegmund Christoph von Schrattenbach † | Archbishop of Salzburg, Austria |
| 7 Apr | 23.0 | Ordained Priest | Antonius Belglava † | Priest | Bishop of Trogir (Traù), Croatia |
| 9 Apr | 41.2 | Appointed | Girolamo Bajardi † | Bishop of Borgo San Donnino, Italy |
| 75.8 | Appointed | Pier Luigi Carafa (Jr.) † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 50.3 | Appointed | Isidro Alfonso Cavanillas † | Auxiliary Bishop of Sevilla {Seville}, Spain | Bishop of Zamora, Spain |
| 50.3 | Appointed | Isidro Alfonso Cavanillas † | Titular Bishop of Anazarbus | Bishop of Zamora, Spain |
| 83.1 | Appointed | Raniero d’Elci † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 20.6 | Professed | Franciscus Salesius (Eustache) Federl, O.C.D. † | Member of Order of Discalced Carmelites | Vicar Apostolic of Malabar, India |
| 47.1 | Appointed | Alfonso Fernández Pantoja † | Bishop of León, Spain |
| 72.0 | Appointed | Joaquín Fernández de Portocarrero Mendoza † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Cardinal-Bishop of Sabina |
| 61.8 | Appointed | Vincenzo Maria de Francisco e Galletti, O.P. † | Bishop of Lipari, Italy |
| 58.0 | Appointed | Federico Marcello Lante Montefeltro Della Rovere † | Cardinal-Priest of San Silvestro in Capite | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 40.0 | Appointed | Antoni Kazimierz Ostrowski † | Bishop of Inflanty (Livonia)-Pilten, Poland | Archbishop of Gniezno, Poland |
| 59.2 | Appointed | Giuseppe Spinelli † | Cardinal-Bishop of Palestrina | Cardinal, Cardinal-Bishop of Ostia |
| 70.2 | Appointed | Fortunato Tamburini, O.S.B. † | Cardinal, Cardinal-Priest of San Callisto |
| 63.1 | Appointed | Silvio Valenti Gonzaga † | Cardinal-Bishop of Sabina | Cardinal, Secretary of the Secretariat of State |
| 48.2 | Appointed | Walenty Franciszek Wężyk † | Bishop of Chełm, Poland | Bishop of Przemyśl, Poland |
| 60.7 | Appointed | Jakob Johann Joseph Wosky von Bärenstamm † | Titular Bishop of Pergamum | Prefect of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany |
| 10 Apr | | Born | Giovanni Marchetti † | Empoli, Italy | Titular Archbishop of Ancyra |
| 19 Apr | 73.6 | Died | Pedro Copóns Copóns † | Archbishop of Tarragona, Spain |
| 21 Apr | 22.5 | Ordained Deacon | Kryspin Cieszkowski † | Deacon | Auxiliary Bishop of Lviv, Ukraine |
| 25.4 | Ordained Priest | Giuseppe Maria Corte † | Priest | Bishop of Mondovi, Italy |
| 42.0 | Ordained Priest | Alessandro Galletti † | Priest | Bishop of Volterra, Italy |
| 43.6 | Ordained Priest | Eugenio Benedetto Scaramuccia † | Priest | Bishop of San Severo, Italy |
| 23 Apr | 41.2 | Ordained Bishop | Girolamo Bajardi † | Bishop of Borgo San Donnino, Italy |
| 61.9 | Ordained Bishop | Vincenzo Maria de Francisco e Galletti, O.P. † | Bishop of Lipari, Italy |
| 28 Apr | | Born | Felipe Montoya Díez † | Grijota | Bishop of Teruel, Spain |
| 8 May | | Born | Michele Belli † | Roma, Italy | Titular Archbishop of Nazianzus |
| Born | László Kámánházy † | Nitra | Bishop of Vác, Hungary |
| 11 May | 75.7 | Died | Jean-Joseph Languet de Gergy † | Archbishop of Sens, France |
| 12 May | | Born | Ignacy Stanislaw Czyżewski † | Kalisz | Bishop of Sejny o Sejna o Augustów, Poland |
| 20 May | | Born | William Coppinger † | Cork | Bishop of Cloyne, Ireland |
| 35.4 | Ordained Bishop | François-d’Etienne de Saint-Jean de Prunières † | Bishop of Grasse, France |
| 21 May | 57.6 | Appointed | José Moreno Guriel, O.SS.T. † | Archbishop of Santo Domingo, Dominican Republic |
| 25 May | 61.8 | Died | Gaetano de Arco † | Bishop of Nusco, Italy |
| 27 May | 22.8 | Ordained Priest | Maria Romedius von Sarnthein † | Priest of Brixen {Bressanone}, Italy | Auxiliary Bishop |
| 28 May | 68.3 | Appointed | Girolamo de Bardi † | Cardinal, Cardinal-Deacon of Santa Maria degli Angeli |
| 72.4 | Appointed | Giacomo Bonanno, C.R. † | Archbishop of Monreale, Italy |
| 50.4 | Confirmed | Juan de La Fuente Yepes † | Bishop of Nueva Segovia, Philippines |
| 58.5 | Installed | Pedro Agustín Morell de Santa Cruz y Lora † | Bishop of Santiago de Cuba |
| 57.4 | Appointed | José Vidal de Moctezuma y Tobar, O. de M. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 57.4 | Appointed | Ignacio Padilla Estrada (Guardiola), O.S.A. † | Archbishop (Personal Title) of Yucatán (Mérida), México | Bishop |
| 29 May | | Born | Jean-Claude Leblanc de Beaulieu † | Paris | Bishop Emeritus of Soissons, France |
| 2 Jun | 40.2 | Ordained Bishop | Antoni Kazimierz Ostrowski † | Bishop of Inflanty (Livonia)-Pilten, Poland | Archbishop of Gniezno, Poland |
| 3 Jun | 39.7 | Ordained Priest | Tomás de Azpuru Ximénez † | Priest | Archbishop of Valencia, Spain |
| 58.2 | Died | Johann Philipp Anton von Franckenstein † | Bishop of Bamberg, Germany |
| 6 Jun | 64.1 | Died | Innocentius (Joannes Antonius) Stratman, O.C.D. † | Titular Bishop of Aureliopolis in Asia |
| 9 Jun | 64.4 | Died | Hagop Petros II Hovsepian † | Patriarch of Cilicia (Armenian), Lebanon |
| 15 Jun | | Born | Joaquim Maria Mascarenhas Castello Branco † | Rio de Janeiro | Bishop Emeritus of Angola e Congo, Angola |
| 16 Jun | 23.5 | Ordained Priest | Onofrio Maria Gennari † | Priest | Bishop of Montemarano, Italy |
| 22.9 | Ordained Priest | Giuseppe Pasquale Rogano † | Priest | Bishop of Trevico, Italy |
| 24.5 | Ordained Priest | Giacinto Amedeo Vagnone † | Priest | Bishop Emeritus of Alba (Pompea), Italy |
| 17 Jun | 48.4 | Ordained Bishop | Walenty Franciszek Wężyk † | Bishop of Chełm, Poland | Bishop of Przemyśl, Poland |
| 19 Jun | | Born | François-Melchior-Charles-Bienvenu de Miollis † | Aix-en-Provence | Bishop Emeritus of Digne, France |
| 20 Jun | | Born | Antonio Gómez Polanco, O.F.M. † | San Sebastián de la Plata | Bishop of Santa Marta, Colombia |
| 23 Jun | | Born | Juan Antonio Zulaibar, O.P. † | Ceánuri, Spain | Archbishop of Manila, Philippines |
| 24 Jun | 60.9 | Ordained Bishop | Jakob Johann Joseph Wosky von Bärenstamm † | Titular Bishop of Pergamum | Prefect of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany |
| 26 Jun | 72.8 | Died | Jan-Baptist de Castillion † | Bishop of Brugge {Bruges}, Belgium |
| 27 Jun | | Born | Pietro Bianco † | Sassari | Bishop of Alghero, Italy |
| 29 Jun | 23.0 | Ordained Priest | Franciscus von Berchtold † | Priest | Bishop of Banská Bystrica, Slovakia |
| 30 Jun | | Born | Gabriello Maria Gravina, O.S.B. † | Montevago | Prelate of Santa Lucia del Mela, Italy |