| Date | Age | Event | Bishop | Title | Current Title |
| Jul | 24.9 | Ordained Priest | Henri-Benoit-Jules de Béthizy † | Priest | Bishop of Uzés, France |
| 12 Jul | 74.1 | Died | Juan Manuel Rodríguez Castañón † | Bishop of Tuy, Spain |
| 15 Jul | 53.7 | Selected | Lucas Ramírez Galán, O.F.M. Obs. † | Archbishop of Santafé en Nueva Granada, Colombia | Bishop of Tuy, Spain |
| 16 Jul | 62.0 | Ordained Bishop | Juan Bautista Cervera, O.F.M. Disc. † | Bishop of Islas Canarias {Canary Islands}, Spain | Bishop of Cádiz, Spain |
| 17 Jul | 44.1 | Selected | Johann Heinrich von Kerens, S.J. † | Bishop of Roermond, Netherlands | Bishop of Sankt Pölten, Austria |
| 19 Jul | 32.3 | Selected | Vittorio Maria Baldassare Gaetano Costa d’Arignano † | Bishop of Vercelli, Italy | Cardinal, Archbishop of Torino {Turin}, Italy |
| 78.0 | Died | Vincenzo Maria de Francisco e Galletti, O.P. † | Bishop of Lipari, Italy |
| 34.2 | Selected | Giuseppe Ottavio Hercule Pochettini di Serravalle † | Bishop of Ivrea, Italy |
| 40.5 | Selected | Giacinto Amedeo Vagnone † | Bishop of Alba (Pompea), Italy | Bishop Emeritus |
| 20 Jul | | Born | József de Belánsky † | | Bishop of Banská Bystrica, Slovakia |
| 21 Jul | 74.1 | Died | Krzysztof Michal Dobiński † | Auxiliary Bishop of Gniezno, Poland |
| 23 Jul | 24.1 | Ordained Deacon | Antoni de Gołaszewski † | Deacon | Bishop of Przemyśl, Poland |
| 24 Jul | 37.5 | Resigned | Louis-François-Marc-Hilaire de Conzié † | Bishop of Saint-Omer, France | Bishop of Arras, France |
| 25 Jul | 65.5 | Died | William Maire † | Coadjutor Vicar Apostolic of Northern District, England, Great Britain |
| 26 Jul | 24.1 | Ordained Priest | Antoni de Gołaszewski † | Priest | Bishop of Przemyśl, Poland |
| 6 Aug | | Born | Johann Theodor van der Noot † | | Vicar Apostolic Emeritus of Luxembourg |
| 7 Aug | | Born | Karl Kajetan von Gaisruck (Gaysruck) † | | Cardinal, Archbishop of Milano {Milan}, Italy |
| 63.5 | Appointed | Mathew McKenna † | Bishop of Cloyne and Ross, Ireland |
| 8 Aug | | Born | Antonio Larrazábal † | | Auxiliary Bishop-Elect of Guatemala |
| 10 Aug | 70.5 | Died | Benito Marín, O.S.B. † | Bishop of Jaén, Spain |
| 12 Aug | | Born | Agostino Tommasi † | | Bishop of Aversa, Italy |
| 13 Aug | | Born | Joaquim José Pacheco Sousa † | | Bishop of Guarda, Portugal |
| 18 Aug | | Born | Cajetan Pires Pireira, C.M. † | | Bishop of Nanking [Nanjing], China |
| 19 Aug | 47.7 | Appointed | Marcantonio Marcolini † | Apostolic Nuncio to Florence (Tuscany), Italy | Cardinal, Cardinal-Priest of Sant’Onofrio |
| 21 Aug | 37.6 | Confirmed | Louis-François-Marc-Hilaire de Conzié † | Bishop of Arras, France |
| 31.4 | Confirmed | Joachim-François-Mamert de Conzié † | Bishop of Saint-Omer, France | Archbishop of Tours, France |
| 35.8 | Appointed | Michelangelo della Peruta † | Bishop of Isernia, Italy |
| 53.8 | Confirmed | Lucas Ramírez Galán, O.F.M. Obs. † | Archbishop of Santafé en Nueva Granada, Colombia | Bishop of Tuy, Spain |
| 27 Aug | 24.0 | Ordained Priest | Gregorio (Felix Antonius Paschalis) Boari, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop of Comacchio, Italy |
| 22.8 | Ordained Deacon | Joannes Baptist Jesich † | Deacon | Bishop of Senj (-Modruš), Croatia |
| 35.8 | Ordained Bishop | Michelangelo della Peruta † | Bishop of Isernia, Italy |
| 3 Sep | 80.6 | Died | Paul-Alexandre de Guénet † | Bishop of Saint-Pons-de-Thomières, France |
| 6 Sep | 57.8 | Died | Ignazio Savastano † | Bishop of Gallipoli, Italy |
| 9 Sep | 42.3 | Ordained Bishop | Ludwig Joseph von Welden auf Laubheim und Hohenaltingen † | Bishop of Freising, Germany |
| 10 Sep | 43.5 | Ordained Bishop | François Pottier, M.E.P. † | Titular Bishop of Agathopolis | Vicar Apostolic of Se-Ciuen (Setchoan, Szechwan, Sichuan), China |
| 11 Sep | 66.9 | Appointed | Alonso Francos Arango † | Bishop of Orense, Spain |
| 52.6 | Appointed | Giovanni Battista Badoer † | Titular Bishop of Sidon |
| 55.3 | Appointed | Ludwig Philipp Behelm † | Auxiliary Bishop of Mainz, Germany |
| 55.3 | Appointed | Ludwig Philipp Behelm † | Titular Bishop of Domitiopolis | Auxiliary Bishop of Mainz, Germany |
| 48.9 | Appointed | Matej Frantisek von Chorinsky † | Auxiliary Bishop of Olomouc (Olmütz), Czechia | Bishop of Brno, Czechia |
| 48.9 | Appointed | Matej Frantisek von Chorinsky † | Titular Bishop of Samaria | Bishop of Brno, Czechia |
| 34.2 | Appointed | Andrea Corsini † | Cardinal-Priest of San Matteo in Merulana | Cardinal, Cardinal-Bishop of Sabina |
| 32.5 | Confirmed | Vittorio Maria Baldassare Gaetano Costa d’Arignano † | Bishop of Vercelli, Italy | Cardinal, Archbishop of Torino {Turin}, Italy |
| 42.6 | Confirmed | Michel-François de Couët du Vivier de Lorry † | Bishop of Tarbes, France | Bishop Emeritus of La Rochelle, France |
| 46.5 | Appointed | Johann Georg Joseph von Eckart † | Auxiliary Bishop of Mainz, Germany |
| 46.5 | Appointed | Johann Georg Joseph von Eckart † | Titular Bishop of Ioppe | Auxiliary Bishop of Mainz, Germany |
| 65.0 | Appointed | Bartolomeo Olivazzi † | Bishop of Pavia, Italy |
| 34.3 | Confirmed | Giuseppe Ottavio Hercule Pochettini di Serravalle † | Bishop of Ivrea, Italy |
| 43.3 | Appointed | Antonius Urbański † | Auxiliary Bishop of Przemyśl, Poland |
| 43.3 | Appointed | Antonius Urbański † | Titular Bishop of Evaria | Auxiliary Bishop of Przemyśl, Poland |
| 40.7 | Confirmed | Giacinto Amedeo Vagnone † | Bishop of Alba (Pompea), Italy | Bishop Emeritus |
| 17 Sep | 57.8 | Ordained Bishop | Anton Ignaz von Fugger-Glött † | Bishop of Regensburg, Germany |
| 31.4 | Ordained Bishop | Joachim-François-Mamert de Conzié † | Bishop of Saint-Omer, France | Archbishop of Tours, France |
| 20 Sep | 26.7 | Ordained Deacon | Matthew Lennan † | Deacon | Bishop of Dromore, Ireland |
| 21 Sep | 32.5 | Ordained Bishop | Vittorio Maria Baldassare Gaetano Costa d’Arignano † | Bishop of Vercelli, Italy | Cardinal, Archbishop of Torino {Turin}, Italy |
| 26.7 | Ordained Priest | Matthew Lennan † | Priest | Bishop of Dromore, Ireland |
| 34.3 | Ordained Bishop | Giuseppe Ottavio Hercule Pochettini di Serravalle † | Bishop of Ivrea, Italy |
| 40.7 | Ordained Bishop | Giacinto Amedeo Vagnone † | Bishop of Alba (Pompea), Italy | Bishop Emeritus |
| 23 Sep | 23.5 | Ordained Priest | Mauro Paolo Giuseppe Antonino Michele Maria Mari, O.S.B. † | Priest of Order of Saint Benedict | Bishop Emeritus of Dora |
| 24.1 | Ordained Priest | José Marques da Silva, O.C.D. † | Priest of Order of Discalced Carmelites | Bishop of Cochin, India |
| 26.2 | Ordained Priest | Jean Baptiste Robert van Velde de Melroy et Sart-Bomal † | Priest | Bishop Emeritus of Roermond, Netherlands |
| 23.5 | Ordained Deacon | John Young † | Deacon of Limerick, Ireland | Bishop |
| 24 Sep | 28.8 | Ordained Deacon | Andrzej Antoni Ignacy Gawroński † | Deacon of Society of Jesus | Bishop of Kraków, Poland |
| 27 Sep | 61.5 | Selected | José Vicente Díaz Bravo, O. Carm. † | Bishop of Durango, México |
| 77.6 | Died | Giovanni Domenico Mansi, O.M.D. † | Archbishop of Lucca, Italy |
| 1 Oct | 52.6 | Ordained Bishop | Giovanni Battista Badoer † | Titular Bishop of Sidon |
| 2 Oct | 74.7 | Died | Patrick Fitzsimons † | Archbishop of Dublin, Ireland |
| 4 Oct | 65.7 | Died | Giusto de Marco, C.R. † | Titular Archbishop of Nazareth |
| 6 Oct | 83.8 | Died | Andrés Mayoral Alonso de Mella † | Archbishop of Valencia, Spain |
| 10 Oct | 61.2 | Died | Franz Karl Joseph von Fugger-Glött † | Auxiliary Bishop Emeritus of Konstanz {Constance}, Germany |
| 15 Oct | 46.7 | Selected | Juan Manuel Moscoso y Peralta † | Auxiliary Bishop of Arequipa, Peru | Archbishop of Granada, Spain |
| 16 Oct | 49.0 | Ordained Bishop | Matej Frantisek von Chorinsky † | Titular Bishop of Samaria | Bishop of Brno, Czechia |
| 17 Oct | 15.3 | Professed | Péter Klobusiczky † | Member of Society of Jesus | Archbishop of Kalocsa, Hungary |
| 58.7 | Died | José Cayetano Loazes y Somoza † | Bishop of Palencia, Spain |
| 23 Oct | 41.1 | Selected | Antonio Lanza, C.R. † | Bishop of Agrigento (Girgenti), Italy |
| 27 Oct | 53.1 | Selected | Domenico Gervasoni † | Archbishop of Lanciano, Italy |
| 28 Oct | 28.9 | Ordained Priest | Andrzej Antoni Ignacy Gawroński † | Priest of Society of Jesus | Bishop of Kraków, Poland |
| 2 Nov | | Born | Carlo Maria Pedicini † | | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 4 Nov | | Born | János Horváth † | | Bishop of Székesfehérvár (Albareale), Hungary |
| 9 Nov | 73.4 | Died | Ferdinando Mandarini † | Bishop of Oppido Mamertina, Italy |
| 10 Nov | | Born | Vicente Ramos y García † | | Former Bishop-Elect of Segorbe, Spain |
| 11 Nov | 44.2 | Selected | Santiago José Hechavarría y Elguesúa † | Bishop of Santiago de Cuba | Bishop of Tlaxcala (Puebla de los Angeles), México |
| 15 Nov | 66.5 | Died | Louis-Jacques d’Audibert de Lussan † | Archbishop of Bordeaux, France |
| 17 Nov | 38.5 | Selected | Giovanni Capece † | Bishop of Oria, Italy |
| 19 Nov | 23.0 | Ordained Priest | Joannes Baptist Jesich † | Priest | Bishop of Senj (-Modruš), Croatia |
| 20 Nov | 46.6 | Appointed | Nicola Bizarri † | Bishop of Forli, Italy | Bishop Emeritus |
| Born | Stanisław Henryk Lubicz Choromański † | | Archbishop of Warszawa {Warsaw}, Poland |
| 61.6 | Confirmed | José Vicente Díaz Bravo, O. Carm. † | Bishop of Durango, México |
| 63.8 | Appointed | Juan Manuel Garcia de Vargas y Ribera, O. de M. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 53.2 | Confirmed | Domenico Gervasoni † | Archbishop of Lanciano, Italy |
| 50.3 | Appointed | Karl Johann von Herberstein † | Coadjutor Bishop of Ljubljana (Laybach; Laibach), Slovenia | Bishop |
| 50.3 | Appointed | Karl Johann von Herberstein † | Titular Bishop of Myndus | Bishop of Ljubljana (Laybach; Laibach), Slovenia |
| 41.2 | Confirmed | Antonio Lanza, C.R. † | Bishop of Agrigento (Girgenti), Italy |
| 42.5 | Appointed | Juan Llano y Ponte † | Auxiliary Bishop of Oviedo, Spain | Bishop |
| 42.5 | Appointed | Juan Llano y Ponte † | Titular Bishop of Lares | Bishop of Oviedo, Spain |
| 42.7 | Appointed | Pasquale Maria Mastrilli, C.R. † | Titular Archbishop of Nazareth |
| 64.0 | Appointed | Bonaventura Prestandrea, O.F.M. Conv. † | Bishop of Lipari, Italy |
| 53.6 | Appointed | Nicolò Antonio Spínola, O.M. † | Titular Archbishop of Naupactus |
| 48.0 | Appointed | Juan Varela Fondevilla y Verea † | Auxiliary Bishop of Santiago de Compostela, Spain |
| 48.0 | Appointed | Juan Varela Fondevilla y Verea † | Titular Bishop of Tanis | Auxiliary Bishop of Santiago de Compostela, Spain |
| 46.3 | Appointed | Rudolf Joseph von Edling † | Auxiliary Bishop of Gorizia (Görz), Italy | Archbishop Emeritus |
| 46.3 | Appointed | Rudolf Joseph von Edling † | Titular Bishop of Capharnaum | Archbishop Emeritus of Gorizia (Görz), Italy |
| 23 Nov | | Born | Thomas Gillow † | | Priest of Northern District, England, Great Britain |
| 26 Nov | | Born | Francesco Colangelo, C.O. † | | Bishop of Castellammare di Stabia, Italy |
| 38.7 | Appointed | Innocenzo Conti † | Apostolic Nuncio to Portugal | Cardinal, Cardinal-Priest of Santa Maria in Ara Coeli |
| 42.3 | Ordained Bishop | Miguel García San Esteban, O.P. † | Bishop of Nueva Segovia, Philippines |
| 27 Nov | 24.9 | Ordained Deacon | Kajetan Ignacy Kicki † | Deacon | Archbishop of Lviv, Ukraine |
| 30 Nov | 46.6 | Ordained Bishop | Nicola Bizarri † | Bishop of Forli, Italy | Bishop Emeritus |
| 53.2 | Ordained Bishop | Domenico Gervasoni † | Archbishop of Lanciano, Italy |
| 41.2 | Ordained Bishop | Antonio Lanza, C.R. † | Bishop of Agrigento (Girgenti), Italy |
| 42.8 | Ordained Bishop | Pasquale Maria Mastrilli, C.R. † | Titular Archbishop of Nazareth |
| 64.0 | Ordained Bishop | Bonaventura Prestandrea, O.F.M. Conv. † | Bishop of Lipari, Italy |
| Dec | 82.7 | Died | Matteu D’Angelis † | Bishop of Aleria, France |
| 2 Dec | 59.9 | Died | Diego Salguero de Cabrera † | Bishop of Arequipa, Peru |
| 79.1 | Died | Giuseppe Schirò, O.S.B.I. † | Archbishop of Durrës (Durazzo) (Albanian), Albania |
| 9 Dec | 48.4 | Died | Aymard-Chrétien-François-Michel de Nicolay † | Bishop of Verdun, France |
| 10 Dec | 24.9 | Ordained Priest | Kajetan Ignacy Kicki † | Priest | Archbishop of Lviv, Ukraine |
| 11 Dec | | Born | Carlo Domenico Ferrari † | | Bishop of Brescia, Italy |
| 13 Dec | | Born | Luis Antonio Folgueras y Sión † | | Archbishop of Granada, Spain |
| 14 Dec | | Born | Henricus den Dubbelden † | | Vicar Apostolic of ’s-Hertogenbosch (Bois-le-Duc), Netherlands |
| 17 Dec | 55.6 | Ordained Bishop | Ludwig Philipp Behelm † | Titular Bishop of Domitiopolis | Auxiliary Bishop of Mainz, Germany |
| 46.7 | Ordained Bishop | Johann Georg Joseph von Eckart † | Titular Bishop of Ioppe | Auxiliary Bishop of Mainz, Germany |
| Born | Kajetan von Kowalski † | | Auxiliary Bishop of Gniezno e Poznań, Poland |
| 23.2 | Ordained Priest | Franciszek Remigiusz Zambrzycki † | Priest | Auxiliary Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| 18 Dec | 49.9 | Appointed | Gaetano Maria Capece, C.R. † | Archbishop of Trani, Italy | Bishop of Pozzuoli, Italy |
| 67.9 | Elevated to Cardinal | Paulo de Carvalho de Mendoça † | In Pectore | Cardinal, |
| 38.8 | Appointed | Innocenzo Conti † | Titular Archbishop of Tyrus | Cardinal, Cardinal-Priest of Santa Maria in Ara Coeli |
| 62.4 | Appointed | Joaquín de Eleta, O.F.M. † | Titular Archbishop of Thebae | Bishop of Osma, Spain |
| 71.9 | Appointed | Antoni Gorczyński † | Auxiliary Bishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine |
| 71.9 | Appointed | Antoni Gorczyński † | Titular Bishop of Coronea | Auxiliary Bishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine |
| 44.5 | Confirmed | Johann Heinrich von Kerens, S.J. † | Bishop of Roermond, Netherlands | Bishop of Sankt Pölten, Austria |
| 64.1 | Appointed | Bonaventura Prestandrea, O.F.M. Conv. † | Titular Archbishop of Tamiathis | Bishop of Lipari, Italy |
| 21 Dec | 65.3 | Ordained Deacon | Bartolomeo Olivazzi † | Deacon | Bishop of Pavia, Italy |
| Born | Maximilian Joseph Gottfried Sommerau Beeckh † | | Cardinal, Archbishop of Olomouc, Czechia |
| 23 Dec | 58.0 | Died | Andrew Campbell † | Bishop of Kilmore, Ireland |
| 65.3 | Ordained Priest | Bartolomeo Olivazzi † | Priest | Bishop of Pavia, Italy |
| 24.4 | Ordained Priest | Jean Pradelle † | Priest | Bishop-Elect of Bayeux, France |
| 24 Dec | 49.9 | Ordained Bishop | Gaetano Maria Capece, C.R. † | Archbishop of Trani, Italy | Bishop of Pozzuoli, Italy |
| 25 Dec | | Born | Salvador de Apodaca y Loreto † | | Bishop of Linares o Nueva León, Nuevo León, México |
| 26 Dec | 39.9 | Selected | François Bareau de Girac † | Bishop of Rennes, France | Bishop Emeritus |
| 38.9 | Selected | Louis-Henri de Bruyère de Chalabre † | Bishop of Saint-Pons-de-Thomières, France |
| 38.8 | Ordained Bishop | Innocenzo Conti † | Titular Archbishop of Tyrus | Cardinal, Cardinal-Priest of Santa Maria in Ara Coeli |
| 52.9 | Selected | Henri-Louis-René des Nos † | Bishop of Verdun, France |
| 33.5 | Selected | Jules-Basile Ferron de La Ferronnays † | Bishop of Saint-Brieuc, France | Bishop of Lisieux, France |
| 31.1 | Selected | Ferdinand-Maximilien-Mériadec de Rohan-Guéménée † | Archbishop of Bordeaux, France | Archbishop Emeritus of Cambrai, France |
| 29 Dec | | Born | Giacomo Giustiniani † | | Cardinal, Prefect of the Roman Curia - Other |
| 31 Dec | 65.3 | Ordained Bishop | Bartolomeo Olivazzi † | Bishop of Pavia, Italy |