| Date | Age | Event | Bishop | Title | Current Title |
| 6 Jul | | Born | François Antoine Marie Constantin de Méan et de Beaurieux † | Saive | Archbishop of Mechelen, Belgium |
| 16 Jul | 54.8 | Appointed | Francesco Felice Alberti d’Enno † | Titular Bishop of Miletopolis | Bishop of Trento, Italy |
| 54.8 | Confirmed | Francesco Felice Alberti d’Enno † | Coadjutor Bishop of Trento, Italy | Bishop |
| 19 Jul | 39.2 | Appointed | Giuseppe Maria Carafa † | Bishop of Mileto, Italy |
| 42.8 | Appointed | Vicente da Gamal Leao † | Coadjutor Bishop of São Sebastião do Rio de Janeiro, Brazil | Coadjutor Bishop Emeritus |
| 42.8 | Appointed | Vicente da Gamal Leao † | Titular Bishop of Etalonia | Coadjutor Bishop Emeritus of São Sebastião do Rio de Janeiro, Brazil |
| 52.4 | Appointed | Antônio de São José Moura Marinho, O.S.A. † | Bishop of São Luís do Maranhão, Brazil | Archbishop of São Salvador da Bahia, Brazil |
| 49.6 | Appointed | Manuel Antonio Palmero Rallo † | Bishop of Gerona, Spain |
| Appointed | Giuseppe Pitocco † | Bishop of Trivento, Italy |
| 22 Jul | 50.4 | Elevated to Cardinal | Franz Konrad Kasimir Ignaz von Rodt † | Cardinal, Bishop of Konstanz {Constance}, Germany |
| 25 Jul | 79.5 | Died | Mario Millini (Mellini) † | Cardinal, Cardinal-Priest of S. Marcello |
| 4 Aug | | Appointed | James O'Fallon † | Bishop of Elphin, Ireland |
| 6 Aug | | Born | Antoine-Xavier Maynaud de Pancemont † | Digoin | Bishop of Vannes, France |
| 7 Aug | | Appointed | Augustine Cheevers, O.S.A. † | Bishop of Meath, Ireland |
| 8 Aug | 15.7 | Professed | Andrzej Antoni Ignacy Gawronski † | Member of Society of Jesus | Bishop of Kraków, Poland |
| Born | Lorenz Barlomiej Ignacy Antoni Raczynski, O. Cist. † | Czeradzen | Auxiliary Bishop of Gniezno, Poland |
| 11 Aug | | Appointed | Anthony Blake † | Bishop of Ardagh (and Clonmacnois), Ireland | Archbishop of Armagh, Ireland |
| 15 Aug | | Born | Agnello Giuseppe d'Auria † | Napoli | Bishop of Nocera de’ Pagani, Italy |
| 21 Aug | | Born | Johann Friedrich Graf von Waldenstein-Wartenberg † | Wien | Bishop of Seckau, Austria |
| 24 Aug | | Born | Pietro Paolo Mazzichi † | Assisi | Bishop of Montalto, Italy |
| 28 Aug | 41.9 | Appointed | Christoph Bartholomäus Anton Migazzi Von Waal Und Sonnenthurn † | Archbishop (Personal Title) of Vác, Hungary | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 66.5 | Died | Silvio Valenti Gonzaga † | Cardinal, Secretary of the Secretariat of State |
| 5 Sep | | Born | Giovanni Bonyonski † | Kiss-Jeszeniez | Auxiliary Bishop of Esztergom, Hungary |
| 10 Sep | | Born | José Maria de Melo † | Lumiar | Bishop Emeritus of Faro {Algarve}, Portugal |
| 52.2 | Died | Ignazio Rovèro † | Bishop of Novara, Italy |
| 11 Sep | | Born | Etienne-Hubert de Cambacérès † | Montpellier | Cardinal, Archbishop of Rouen, France |
| 62.6 | Appointed | Giuseppe Spinelli † | Prefect of the Congregation for Propagation of the Faith | Cardinal, Cardinal-Bishop of Ostia |
| 12 Sep | | Born | François-François Besson † | Seyssel | Bishop of Metz, France |
| 43.5 | Ordained Bishop | José Patricio de la Cuesta Velarde † | Bishop of Ceuta, Spain | Bishop of Sigüenza, Spain |
| Born | Manuel Ros Medrano † | Orense | Bishop of Tortosa, Spain |
| 20 Sep | 57.9 | Appointed | Alberico Archinto † | Cardinal, Cardinal-Priest of S. Lorenzo in Damaso |
| 48.4 | Appointed | Girolamo Colonna di Sciarra † | Cardinal-Deacon of Ss. Cosma e Damiano | Cardinal, Cardinal-Deacon of S. Agata de’ Goti |
| 75.5 | Appointed | Joaquín Fernández de Portocarrero Mendoza † | Cardinal, Cardinal-Bishop of Sabina |
| 41.9 | Confirmed | Christoph Bartholomäus Anton Migazzi Von Waal Und Sonnenthurn † | Archbishop (Personal Title) of Vác, Hungary | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 63.8 | Appointed | Camillo Paolucci † | Cardinal-Priest of S. Maria in Trastevere | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 46.4 | Appointed | Carlo Augusto Peruzzini, B. † | Bishop of Macerata-Tolentino, Italy |
| 59.0 | Appointed | Franz Ignaz Albert Reichsfreiherr von Werdenstein † | Auxiliary Bishop of Freising, Germany |
| 59.0 | Appointed | Franz Ignaz Albert Reichsfreiherr von Werdenstein † | Titular Bishop of Taenarum | Auxiliary Bishop of Freising, Germany |
| 21 Sep | 52.6 | Ordained Bishop | Antônio de São José Moura Marinho, O.S.A. † | Bishop of São Luís do Maranhão, Brazil | Archbishop of São Salvador da Bahia, Brazil |
| 23 Sep | 82.5 | Died | Joseph de Guyon de Crochans † | Archbishop of Avignon, France |
| 59.5 | Appointed | Louis-César-Constantin de Rohan-Guémené-Montbazon † | Cardinal, Bishop of Strasbourg, France |
| 30 Sep | | Born | Jerónimo Castellón Salas † | Ponzano | Bishop of Tarazona, Spain |
| 2 Oct | 73.7 | Died | Sebastián José Victoria Emparán y Loyola, O.S.H. † | Bishop of Urgell, Spain |
| 3 Oct | 42.4 | Ordained Bishop | Diego Antonio Díez Madroñero † | Bishop of Caracas, Santiago de Venezuela |
| 46.5 | Ordained Bishop | Carlo Augusto Peruzzini, B. † | Bishop of Macerata-Tolentino, Italy |
| 4 Oct | | Born | Juan Francisco Castañiza Larrea y Gonzalez de Agüero † | Mexico | Bishop of Durango, México |
| 5 Oct | | Born | Patrício da Silva, O.S.A. † | Pinheiros | Cardinal, Patriarch of Lisboa, Portugal |
| 10 Oct | | Born | Simon Melchior de Petris † | Ansberg | Vicar Apostolic Emeritus of Seckau, Austria |
| 20 Oct | 61.8 | Died | João da Cruz Salgado de Castilho, O.C.D. † | Bishop of Miranda, Portugal |
| 24 Oct | 23.0 | Ordained Priest | Giuseppe Maria Beneventi, O.F.M. Conv. † | Priest of Order of Friars Minor Conventual | Bishop of Muro Lucano, Italy |
| 43.1 | Ordained Bishop | Vicente da Gamal Leao † | Titular Bishop of Etalonia | Coadjutor Bishop Emeritus of São Sebastião do Rio de Janeiro, Brazil |
| 30 Oct | | Born | Giovanni Nepomuceno Ferdiani † | Cagliari | Bishop of Iglesias, Italy |
| 31 Oct | | Born | Paolo Garzilli † | Solofra | Bishop of Sessa Aurunca, Italy |
| 1 Nov | | Born | Domenico Orlando, O.F.M. Conv. † | Prizzi | Bishop of Catania, Italy |
| 14 Nov | 55.1 | Ordained Bishop | Francesco Felice Alberti d’Enno † | Titular Bishop of Miletopolis | Bishop of Trento, Italy |
| 19 Nov | 77.9 | Died | Martín de Elizacoechea † | Bishop of Michoacán, Michoacán, México |
| 21 Nov | 59.1 | Ordained Bishop | Franz Ignaz Albert Reichsfreiherr von Werdenstein † | Titular Bishop of Taenarum | Auxiliary Bishop of Freising, Germany |
| 25 Nov | | Born | Jean-Baptiste-François-Nicolas Millaux † | Châteaubourg | Bishop of Nevers, France |
| 28 Nov | | Born | Vitale Loschi † | Salso Maggiore | Bishop of Parma, Italy |
| Dec | 62.1 | Appointed | François-Marie de Mansi † | Archbishop of Avignon, France |
| 70.8 | Died | Franz Bernardin Verbeck, O.F.M. Conv. † | Auxiliary Bishop of Münster, Germany |
| 4 Dec | 71.8 | Died | Amand Buseck, O.S.B. † | Bishop of Fulda, Germany |
| 5 Dec | | Born | Mathias Le Groing de La Romagère † | Saint-Sauvier | Bishop of Saint-Brieuc, France |
| 8 Dec | | Born | Max Franz (Maximilian Franciscus) von Habsburg-Lothringen (Österreich) † | Wien | Archbishop of Köln {Cologne}, Germany |
| 11 Dec | 72.8 | Died | Gregorio Galindo † | Bishop of Lérida, Spain |
| 16 Dec | | Born | Tommaso Arezzo † | Orbetello | Cardinal, Official of the Roman Curia - Other |
| 61.5 | Appointed | Giovanni Giacomo Millo † | Cardinal, Prefect of the Congregation of the Council |
| 20 Dec | 55.4 | Appointed | Jean-Antoine Buocher, O.F.M. † | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China | Vicar Apostolic Emeritus |
| 57.8 | Died | Eugenio Piloti, O.F.M. † | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China |
| 21 Dec | 34.9 | Ordained Bishop | Charles Walmesley, O.S.B. † | Titular Bishop of Ramata | Vicar Apostolic of Western District, England, Great Britain |
| 23 Dec | | Born | Bartolomeo Pacca † | Benevento | Cardinal, Secretary of the Roman Curia - Other |
| 27 Dec | | Born | Arnaud-Ferdinand de La Porte † | Versailles | Bishop of Carcassonne, France |
| 29 Dec | | Resigned | Innocenzo Sanseverino † | Bishop of Alife, Italy | Bishop Emeritus |