| Date | Age | Event | Bishop | Title | Current Title |
| 3 Jul | 49.7 | Appointed | Johannes Christoph Ludwig von Kuenburg † | Auxiliary Bishop of Passau, Germany |
| 49.7 | Appointed | Johannes Christoph Ludwig von Kuenburg † | Titular Bishop of Abdera | Auxiliary Bishop of Passau, Germany |
| 22.3 | Appointed | Henry Benedict Mary Clement Stuart of York † | Cardinal-Deacon of Santa Maria in Portico (Campitelli) | Cardinal, Bishop of Frascati, Italy |
| 22.3 | Elevated to Cardinal | Henry Benedict Mary Clement Stuart of York † | Cardinal, Bishop of Frascati, Italy |
| 4 Jul | | Born | Giovanni Battista Bolognese † | Chieti | Bishop of Andria, Italy |
| 6 Jul | 61.7 | Died | Domenico Rossi (Rosso e Colonna), O.S.B. † | Archbishop of Palermo, Italy |
| 16 Jul | 22.9 | Ordained Priest | Francesco Agoselli † | Priest | Bishop of Cesena, Italy |
| 19 Jul | 49.5 | Selected | Ross Roe MacMahon (McMahon) † | Archbishop of Armagh, Ireland |
| 21 Jul | 64.5 | Appointed | Francisco Antonio Bustamante Jiménez † | Bishop of Plasencia, Spain |
| Born | Camillo Campanelli † | Matelica | Bishop of Perugia, Italy |
| 24 Jul | 76.4 | Died | Kaspas Ignaz von Künigl zu Ehrenburg † | Bishop of Brixen {Bressanone}, Italy |
| 26 Jul | | Born | Claude-François-Marie Primat, C.O. † | Lyon | Archbishop of Toulouse, France |
| 28 Jul | | Born | Alexander Cameron † | Braemar, Aberdeenshire | Vicar Apostolic Emeritus of Lowland District, Scotland, Great Britain |
| 30 Jul | 49.8 | Ordained Bishop | Johannes Christoph Ludwig von Kuenburg † | Titular Bishop of Abdera | Auxiliary Bishop of Passau, Germany |
| 31 Jul | 55.5 | Appointed | Francisco Castillo Vintimilla † | Bishop of Jaén, Spain |
| 34.9 | Installed | Carlo Vittorio Amedeo delle Lanze † | Cardinal-Deacon of Santi Cosma e Damiano | Cardinal, Prefect of the Congregation of the Council |
| 54.9 | Appointed | Dominico Maria Saporito † | Bishop of Accia and Mariana, France |
| 3 Aug | 49.6 | Confirmed | Ross Roe MacMahon (McMahon) † | Archbishop of Armagh, Ireland |
| 11 Aug | 34.9 | Appointed | Carlo Vittorio Amedeo delle Lanze † | Titular Archbishop of Nicosia | Cardinal, Prefect of the Congregation of the Council |
| 13 Aug | 59.4 | Died | João de Moreira, O.F.M. † | Bishop of Santiago de Cabo Verde |
| 15 Aug | 75.5 | Died | Sostegno Maria Cavalli, O.S.M. † | Bishop of Gubbio, Italy |
| 55.0 | Ordained Bishop | Dominico Maria Saporito † | Bishop of Accia and Mariana, France |
| 20 Aug | 83.6 | Died | Teige McCarthy Rabagh † | Bishop of Cork, Ireland |
| 60.7 | Died | Giovanni Andrea Tria (II) † | Bishop of Larino, Italy |
| 27 Aug | 63.8 | Ordained Bishop | Anselm Franz von Ingelheim † | Bishop of Würzburg, Germany |
| 57.2 | Installed | Pedro José Manuel (Pedro de la Trinidad) Martínez de Arizala, O.F.M. † | Archbishop of Manila, Philippines |
| Sep | 74.1 | Died | Hyacinthus Verdesca † | Bishop of Carinola (Calina), Italy |
| 1 Sep | | Appointed | Antonius O’Garvey † | Bishop of Dromore, Ireland |
| 4 Sep | | Appointed | Miklós József Csáky † | Archbishop of Kalocsa, Hungary | Archbishop of Esztergom, Hungary |
| Appointed | Matías Ibáñez † | Bishop of La Paz, Bolivia |
| 65.1 | Appointed | Pio Magnoni † | Bishop of Montepulciano, Italy |
| 55.7 | Appointed | Gregorio de Molleda y Clerque † | Archbishop of La Plata o Charcas, Bolivia |
| 57.2 | Appointed | José Cayetano Paravicino, O.F.M. † | Bishop of Trujillo, Peru |
| 40.7 | Appointed | Bernardo José Pérez de Oblitas † | Bishop of Paraguay | Bishop of Santa Cruz de la Sierra, Bolivia |
| 7 Sep | 77.8 | Died | Johann Bernhard Mayer † | Auxiliary Bishop of Würzburg, Germany |
| 10 Sep | 58.3 | Selected | Andreas Jakob von Dietrichstein † | Archbishop of Salzburg, Austria |
| 71.9 | Died | Giovanni Soffietti, C.R.M. † | Bishop of Adria, Italy |
| 11 Sep | 47.7 | Appointed | Daniel O’Reilly † | Bishop of Clogher, Ireland |
| 15 Sep | 58.8 | Died | Pedro Cáceres Casado † | Bishop of Astorga, Spain |
| 16 Sep | 55.7 | Appointed | Pedro Clemente de Aróstegui (Aristegui) † | Archbishop (Personal Title) of Osma, Spain | Bishop |
| 17 Sep | 26.2 | Ordained Priest | Franz Xaver von Adelmann von Adelmannsfelden † | Priest of Augsburg, Germany | Auxiliary Bishop |
| 37.7 | Ordained Bishop | Henri-Jacques de Montesquiou-Poylobon † | Bishop of Sarlat, France |
| 19 Sep | 57.9 | Resigned | Gaetano Calvani † | Bishop of Bertinoro, Italy | Bishop Emeritus |
| 23 Sep | 24.2 | Ordained Priest | Miguel António Barreto de Meneses † | Priest | Bishop Emeritus of Miranda (do Douro), Portugal |
| 33.8 | Ordained Priest | Giuseppe Capocchiani † | Priest | Bishop of Crotone (Cotrone), Italy |
| 24 Sep | 35.1 | Ordained Bishop | Carlo Vittorio Amedeo delle Lanze † | Titular Archbishop of Nicosia | Cardinal, Prefect of the Congregation of the Council |
| 23.1 | Ordained Priest | Adeodato Turchi, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop of Parma, Italy |
| 25 Sep | | Born | Marco (Matteo) Crescesi † | Shkodrë | Bishop of Shkodrë (Scutari), Albania |
| 72.7 | Died | Luca Antonio della Gatta † | Bishop of Melfi e Rapolla, Italy |
| Born | Antonio Vila y Campos † | Ciudadela | Bishop of Albarracin, Spain |
| 28 Sep | 48.2 | Died | Philipp Ludwig von Sinzendorf † | Cardinal, Bishop of Wrocław (Breslau), Poland |
| Born | Michal Mateusz Stadnicki, O.S.B.M. † | Wielka Wiesk | Bishop of Foreign Diocese |
| Oct | 65.4 | Died | Agostino Bruti † | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia |
| 1 Oct | 54.3 | Ordained Bishop | Antonio Amat † | Bishop of Bosa, Italy |
| 2 Oct | 51.8 | Appointed | Pál Štefan Forgách † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania | Bishop of Vác, Hungary |
| 35.1 | Appointed | Carlo Vittorio Amedeo delle Lanze † | Cardinal-Priest of San Sisto | Cardinal, Prefect of the Congregation of the Council |
| 4 Oct | 62.1 | Died | João de Motta e Silva † | Cardinal, Cardinal-Priest |
| 7 Oct | 45.4 | Ordained Bishop | Wojciech Stanisław Leski, O. Cist. † | Bishop of Chelmno (Culma, Kulm), Poland |
| 8 Oct | 26.5 | Ordained Priest | Segherio Felice Seghieri † | Priest | Bishop of Sovana (Soana), Italy |
| 9 Oct | | Born | Francsco Antonio Javier de Gardoqui Arriquíbar † | Bilbao, Spain | Cardinal, Priest of Palencia, Spain |
| 14 Oct | 68.5 | Resigned | Matteo Trigona † | Bishop of Siracusa, Italy | Bishop Emeritus |
| 15 Oct | | Born | Tadeusz Kundzicz † | Krznsew | Auxiliary Bishop of Vilnius, Lithuania |
| 18 Oct | 51.4 | Selected | Leopold Maria Joseph von Spaur † | Bishop of Brixen {Bressanone}, Italy |
| 20 Oct | | Born | Rafael de Múzquiz y Aldunate † | Viana | Archbishop of Santiago de Compostela, Spain |
| 21 Oct | 41.8 | Ordained Bishop | Louis-Sextius de Jarente de La Bruyère † | Bishop of Digne, France | Bishop of Orléans, France |
| 24 Oct | 47.6 | Died | Francisco Juan Leiza (de Leyva) † | Auxiliary Bishop of Tlaxcala, México |
| 58.8 | Died | Leone Luca Vita † | Bishop of Oppido Mamertina, Italy |
| 25 Oct | | Born | Giuseppe Stanislao Paradiso † | Cagliari | Bishop of Ales e Terralba, Italy |
| 26 Oct | 62.6 | Died | Bernardino Ignazio Rovèro, O.F.M. Cap. † | Bishop of Novara, Italy |
| 27 Oct | 61.8 | Died | Alexandre de Jouanne de Saumery † | Bishop of Rieux, France |
| 28 Oct | | Died | Dominique-Laurent de Balbe de Berton de Crillon † | Bishop of Glandèves, France |
| 29 Oct | 51.8 | Selected | Jean-Marie de Catelan † | Bishop of Rieux, France |
| 6 Nov | | Born | Josef František Hurdalek † | Náchode | Bishop Emeritus of Litoměřice, Czech Republic |
| 12 Nov | | Born | Pietro Luigi Rusconi † | Bologna | Auxiliary Bishop of Cesena, Italy |
| 13 Nov | 47.9 | Ordained Bishop | Daniel O’Reilly † | Bishop of Clogher, Ireland |
| 18 Nov | 60.3 | Died | Josephus Fabbretti † | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 20 Nov | 38.0 | Appointed | Giacomo Cingari † | Bishop of Gubbio, Italy |
| 30.4 | Appointed | Francesco Maria Colombani † | Bishop of Bertinoro, Italy |
| 61.8 | Installed | Daniele Delfino † | Cardinal-Priest of Santa Maria sopra Minerva | Cardinal, Archbishop of Udine, Italy |
| 58.1 | Appointed | Gaetano Calvani † | Titular Archbishop of Ancyra | Bishop Emeritus of Bertinoro, Italy |
| 55.4 | Appointed | Filippo Gentile † | Bishop of Telese o Cerreto Sannita, Italy |
| 53.4 | Appointed | Scipione de’ Lorenzi † | Bishop of Larino, Italy |
| 57.0 | Appointed | Pietro Maria Suárez † | Bishop of Adria, Italy |
| 26 Nov | 38.0 | Ordained Bishop | Giacomo Cingari † | Bishop of Gubbio, Italy |
| 30.4 | Ordained Bishop | Francesco Maria Colombani † | Bishop of Bertinoro, Italy |
| 55.5 | Ordained Bishop | Filippo Gentile † | Bishop of Telese o Cerreto Sannita, Italy |
| 53.4 | Ordained Bishop | Scipione de’ Lorenzi † | Bishop of Larino, Italy |
| Dec | 27.7 | Ordained Priest | Vitaliano Borromeo † | Priest | Cardinal, Titular Archbishop of Thebae |
| 3 Dec | 41.9 | Ordained Bishop | Pedro Ponce y Carrasco † | Titular Bishop of Adramyttium | Bishop of Quito, Ecuador |
| 8 Dec | 41.9 | Appointed | Miguel de Bulhões e Souza, O.P. † | Coadjutor Bishop of Belém do Pará, Brazil | Bishop of Leiria, Portugal |
| 11 Dec | 73.3 | Died | Christoph Ignaz von Gudenus † | Auxiliary Bishop of Mainz, Germany |
| 12 Dec | 71.7 | Died | Clemente Comenge Avio † | Bishop of Ciudad Rodrigo, Spain |
| 13 Dec | 46.9 | Selected | John O’Brien † | Bishop of Cloyne, Ireland | Bishop of Ross, Ireland |
| 46.9 | Selected | John O’Brien † | Bishop of Ross, Ireland |
| Selected | Richard Walsh † | Bishop of Cork, Ireland |
| 17 Dec | | Born | Gerardo José Andrés Vázquez Parga, O. Cist. † | Pacios | Bishop of Salamanca, Spain |
| 18 Dec | 47.1 | Appointed | Deodatus Baiardi † | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 52.4 | Appointed | Giovanni Battista Bortoli † | Bishop of Feltre, Italy | Bishop Emeritus |
| 49.2 | Appointed | Giovanni Bufalini † | Bishop of Carinola (Calina), Italy |
| 73.4 | Appointed | Laurentius Odorisi † | Auxiliary Bishop of Sabina, Italy |
| 73.4 | Appointed | Laurentius Odorisi † | Titular Bishop of Tempe | Auxiliary Bishop of Sabina, Italy |
| 43.4 | Appointed | Giovanni Battista Sandi † | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia | Bishop of Belluno, Italy |
| 21 Dec | 52.4 | Ordained Bishop | Giovanni Battista Bortoli † | Bishop of Feltre, Italy | Bishop Emeritus |
| 49.2 | Ordained Bishop | Giovanni Bufalini † | Bishop of Carinola (Calina), Italy |
| 73.4 | Ordained Bishop | Laurentius Odorisi † | Titular Bishop of Tempe | Auxiliary Bishop of Sabina, Italy |
| 43.4 | Ordained Bishop | Giovanni Battista Sandi † | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia | Bishop of Belluno, Italy |
| 23 Dec | 24.7 | Ordained Priest | Nicola Bizzarri † | Priest | Bishop Emeritus of Forli, Italy |
| 45.0 | Appointed | André-Jean-Baptiste-Dominique de Castellane † | Bishop of Glandèves, France |
| 25.1 | Ordained Priest | Josephus Cosserich Teodosio † | Priest | Bishop of Korčula (Curzola, Cursola), Croatia |
| 24.1 | Ordained Priest | Berndard-Emmanuel (François-Pierre) de Lenzbourg, O. Cist. † | Priest of Order of Cistercians | Bishop of Lausanne, Switzerland |
| 23.9 | Ordained Priest | Giuseppe Bernardino Pecci, O.S.B. † | Priest of Order of Saint Benedict | Bishop of Montalcino, Italy |
| 23.8 | Ordained Priest | Silvestro Pepe † | Priest | Archbishop of Sorrento, Italy |
| 26.3 | Ordained Priest | Giovanni Battista Quasina † | Priest | Bishop of Bosa, Italy |
| 24 Dec | 55.2 | Died | Joseph Anselme François Werbrouck † | Bishop of Antwerpen {Antwerp, Anvers}, Belgium |
| 26 Dec | | Born | Etienne-Marie de Boulogne † | Avignon | Bishop of Troyes, France |
| 27 Dec | | Born | Richard Luke Concanen, O.P. † | Kilbegnet, Ireland | Bishop of New York, New York, USA |
| 29 Dec | 68.0 | Died | Salvador Bermúdez y Becerra † | Archbishop of La Plata o Charcas, Bolivia |