| Date | Age | Event | Bishop | Title | Current Title |
| 5 Jul | 84.8 | Died | Arthur-Richard Dillon † | Archbishop of Narbonne, France |
| 6 Jul | 42.5 | Appointed | Louis-Charles-Auguste Hébert, M.E.P. † | Coadjutor Vicar Apostolic of Verapoly, India | Vicar Apostolic of Madurai, India |
| 42.5 | Appointed | Louis-Charles-Auguste Hébert, M.E.P. † | Titular Bishop of Halicarnassus | Vicar Apostolic of Madurai, India |
| 12 Jul | 82.5 | Died | Joseph-François d'Andigné de la Chasse † | Bishop Emeritus of Chalons-sur-Saône, France |
| 53.5 | Appointed | Bernard-Claude Panet † | Coadjutor Bishop of Québec, Québec, Canada | Archbishop of Québec, Québec, Canada |
| 53.5 | Appointed | Bernard-Claude Panet † | Titular Bishop of Saldae | Archbishop of Québec, Québec, Canada |
| 15 Jul | 55.6 | Appointed | Nicolas-Marie Fournier de la Contamine † | Bishop of Montpellier, France |
| 69.4 | Appointed | Fabien-Sébastien Imberties † | Bishop of Autun, France |
| 46.6 | Appointed | Gaspard-Jean-André Jauffret † | Bishop of Metz, France |
| 23 Jul | 65.4 | Died | Johann Valentin Heimes † | Auxiliary Bishop of Worms, Germany |
| 24 Jul | 72.6 | Appointed | Iraklij Listovskyj † | Archbishop of Kyiv-Vyshhorod (Ukrainian), Ukraine | Bishop of Foreign Diocese |
| 26 Jul | | Born | Juan José Castanyer Rivas † | San Pedro de Torelló | Bishop of Vic, Spain |
| Born | Antonio Palau Termes † | Valls | Bishop of Barcelona, Spain |
| 3 Aug | 27.1 | Ordained Priest | Nicolas-Augustin de la Croix d'Azolette † | Priest | Archbishop Emeritus of Auch, France |
| 6 Aug | 78.2 | Died | Gaetano Maria Bonanno † | Bishop of Siracusa, Italy |
| 65.2 | Ordained Bishop | Stanisław Żarnowiecki † | Titular Bishop of Leuce | Auxiliary Bishop of Poznań, Poland |
| 10 Aug | 63.8 | Ordained Bishop | José Jiménez † | Bishop of Cartagena (en España) |
| 55.8 | Ordained Bishop | Manuel Vicente Martínez Jiménez † | Bishop of Astorga, Spain | Archbishop of Zaragoza, Spain |
| 37.0 | Ordained Bishop | Cayetano Pires Pireira, C.M. † | Bishop of Nanking [Nanjing], China |
| 13 Aug | | Born | Giuseppe Maria Fanelli † | Riccia di Molise | Bishop of Sant’Angelo dei Lombardi-Bisaccia, Italy |
| 17 Aug | | Born | Peter Richard Kenrick † | Dublin, Ireland | Archbishop Emeritus of Saint Louis, Missouri, USA |
| 24 Aug | 23.9 | Ordained Priest | Johann Michael Leonhard † | Priest of Wien {Vienna}, Austria | Bishop of Austria, Military |
| 26 Aug | | Appointed | Ramón José Arce † | Patriarch of West Indies, Antilles | Patriarch Emeritus |
| 66.8 | Appointed | Teodoro Botelho Homen Bernardes † | Bishop of Cranganore, India |
| 49.5 | Appointed | Domenico Buttaoni † | Bishop of Fabriano e Matelica, Italy |
| 44.2 | Appointed | Giovanni Francesco Capelletti † | Bishop of Ascoli Piceno, Italy |
| Born | Andrea Casasola † | Buja | Archbishop of Udine, Italy |
| 66.0 | Appointed | Custodio Angel Díaz Merino, O.P. † | Bishop of Cartagena, Colombia |
| 55.7 | Confirmed | Nicolas-Marie Fournier de la Contamine † | Bishop of Montpellier, France |
| 51.6 | Appointed | Gregorio Hermida y Gamba (Camba) † | Bishop of Oviedo, Spain |
| 69.5 | Confirmed | Fabien-Sébastien Imberties † | Bishop of Autun, France |
| 46.7 | Confirmed | Gaspard-Jean-André Jauffret † | Bishop of Metz, France |
| 66.0 | Appointed | Anton Mandic † | Bishop of Sirmio, Croatia |
| 55.3 | Appointed | Andrea Mastai-Ferretti † | Bishop of Pesaro, Italy |
| 47.5 | Appointed | Diego Antonio Navarro Martín de Villodras † | Bishop of Concepción, Chile | Archbishop of La Plata o Charcas, Bolivia |
| 57.8 | Appointed | Leopold Perlaki Somogy † | Bishop of Szombathely, Hungary |
| 65.1 | Appointed | Ignacy Jan Zygmunt von Raczynski † | Apostolic Administrator of Gniezno, Poland | Archbishop Emeritus |
| 38.5 | Appointed | José Caetano da Silva Coutinho † | Bishop of São Sebastião do Rio de Janeiro, Brazil |
| 68.1 | Appointed | Jozef Ignác de Vilt (Wilt) † | Bishop of Győr, Hungary |
| 27 Aug | | Born | Jovan Josip Vitezic † | Verbenico | Bishop of Krk (Veglia), Croatia |
| 28 Aug | 49.5 | Confirmed | Godfried Joseph Crüts van Creits † | Bishop of Sankt Pölten, Austria |
| 30 Aug | | Born | Jacques-Antoine-Claude-Marie Boudinet † | Saint-Rogatien | Bishop of Amiens, France |
| 31 Aug | 49.5 | Ordained Bishop | Domenico Buttaoni † | Bishop of Fabriano e Matelica, Italy |
| 55.3 | Ordained Bishop | Andrea Mastai-Ferretti † | Bishop of Pesaro, Italy |
| 4 Sep | | Born | Claude-Thierry Obré † | Croissy-Sur-Celle | Auxiliary Bishop Emeritus of Beauvais (-Noyon-Senlis), France |
| 9 Sep | 63.6 | Appointed | Tymoteusz Pawel von Gorzeński † | Bishop of Poznań, Poland | Archbishop of Gniezno-Poznań, Poland |
| 19 Sep | 80.0 | Died | Francisco de Ibarra y Herrera † | Archbishop of Caracas, Santiago de Venezuela |
| 21 Sep | | Born | Giulio Arrigoni † | Bergamo | Archbishop of Lucca, Italy |
| 63.8 | Died | Francisco Leitão de Carvalho † | Bishop of Beja, Portugal |
| 28 Sep | 52.0 | Ordained Bishop | Luis La Encina Díaz y Pereiro † | Bishop of Arequipa, Peru |
| 66.1 | Ordained Bishop | Anton Mandic † | Bishop of Sirmio, Croatia |
| 1 Oct | 43.9 | Died | Etienne-Alexandre-Jean-Baptiste-Marie Bernier † | Bishop of Orléans, France |
| 4 Oct | | Born | Giacinto Maria Barberi, O.P. † | Squillace | Bishop of Nicastro, Italy |
| 5 Oct | 49.6 | Ordained Bishop | Godfried Joseph Crüts van Creits † | Bishop of Sankt Pölten, Austria |
| Born | Joseph Freusberg † | Bilstein | Auxiliary Bishop of Paderborn, Germany |
| 6 Oct | 64.1 | Appointed | José Joaquim da Cunha Azeredo Coutinho † | Bishop of Elvas, Portugal |
| 37.5 | Appointed | José Maria de Araújo, O.S.H. † | Bishop of Olinda, Brazil |
| 37.9 | Appointed | Pietro Fazzi † | Bishop of San Miniato, Italy |
| 65.7 | Appointed | Filippo Ganucci † | Bishop of Livorno, Italy |
| 32.9 | Appointed | Giuseppe Gaetano Incontri † | Bishop of Volterra, Italy |
| 56.1 | Appointed | Cayetano Pallás, O.P. † | Bishop of Nueva Segovia, Philippines |
| 63.7 | Appointed | David Zsolnai † | Auxiliary Bishop of Veszprém, Hungary |
| 12 Oct | 37.9 | Ordained Bishop | Pietro Fazzi † | Bishop of San Miniato, Italy |
| 32.9 | Ordained Bishop | Giuseppe Gaetano Incontri † | Bishop of Volterra, Italy |
| 19 Oct | 51.7 | Ordained Bishop | Gregorio Hermida y Gamba (Camba) † | Bishop of Oviedo, Spain |
| 46.1 | Ordained Bishop | Antonio Maria Trigona † | Titular Bishop of Hierocaesarea | Archbishop Emeritus of Messina, Italy |
| 23 Oct | 75.0 | Died | Carlo Luigi Buronzo del Signore † | Archbishop of Torino {Turin}, Italy |
| 24 Oct | | Born | Maximilian Joseph von Tarnóczy † | Schwaz | Cardinal, Archbishop of Salzburg, Austria |
| 1 Nov | 58.0 | Ordained Bishop | Leopold Perlaki Somogy † | Bishop of Szombathely, Hungary |
| 7 Nov | 65.8 | Died | Vincenzo Nicola Pasquale Dentice, O.S.B. † | Archbishop of Cosenza, Italy |
| 10 Nov | | Born | Mariano Falcinelli Antoniacci, O.S.B. † | Assisi | Cardinal, Official of the Roman Curia - Other |
| 17 Nov | 70.3 | Appointed | Sandor Bodonyi † | Auxiliary Bishop of Vác, Hungary |
| 70.3 | Appointed | Sandor Bodonyi † | Titular Bishop of Belgrado e Semendria o Smederevo | Auxiliary Bishop of Vác, Hungary |
| 49.8 | Appointed | Nicolás García Jerez, O.P. † | Bishop of León en Nicaragua |
| 21.0 | Appointed | Karl Ambrose Ferdinand von Habsburg † | Bishop of Vác, Hungary | Archbishop of Esztergom, Hungary |
| 62.7 | Appointed | Joseph Hieronymus Karl Freiherr von Kolborn † | Auxiliary Bishop of Regensburg, Germany |
| 62.7 | Appointed | Joseph Hieronymus Karl Freiherr von Kolborn † | Titular Bishop of Capharnaum | Auxiliary Bishop of Regensburg, Germany |
| 18 Nov | 63.6 | Installed | Bartolomé María de las Heras Navarro † | Archbishop of Lima, Peru |
| 23 Nov | | Born | Karel Nöttig † | Boolten | Bishop of Brno, Czech Republic |
| 25 Nov | 77.9 | Died | Jean-François de La Marche † | Bishop of Saint-Pol-de-Léon, France |
| 27 Nov | | Born | Marie-Jean-François Allard, O.M.I. † | La Roche-de-Rame, France | Vicar Apostolic Emeritus of Natal, South Africa |
| 3 Dec | | Born | Jacques-Marie-Achille Ginoulhiac † | Montpellier | Archbishop of Lyon (-Vienne), France |
| 8 Dec | 55.9 | Ordained Bishop | Nicolas-Marie Fournier de la Contamine † | Bishop of Montpellier, France |
| 69.8 | Ordained Bishop | Fabien-Sébastien Imberties † | Bishop of Autun, France |
| 47.0 | Ordained Bishop | Gaspard-Jean-André Jauffret † | Bishop of Metz, France |
| 14 Dec | 68.1 | Died | Antonino Reggio † | Bishop of Lipari, Italy |
| 17 Dec | 45.3 | Died | Dionisio Ridolfini Conestabile † | Bishop of Viterbo e Tuscania, Italy |
| 22 Dec | | Born | Simone Spilotros, O. Carm. † | Putignano | Bishop of Tricarico, Italy |
| 30 Dec | 24.2 | Ordained Priest | Pedro Alcántara Jiménez, O. Praem. † | Priest of Order of the Canons Regular of Premontre; Norbertines | Vicar Apostolic of Montevideo, Uruguay |
| 31 Dec | 70.0 | Resigned | James Louis O'Donel, O.F.M. † | Vicar Apostolic of Newfoundland, Canada | Vicar Apostolic Emeritus |