| Date | Age | Event | Bishop | Title | Current Title |
| 1 Jul | 79.6 | Died | Carlo Livizzani Forni † | Cardinal, Cardinal-Priest of San Silvestro in Capite |
| 2 Jul | | Born | Pierre-Antoine-Marie Lamouroux de Pompignac † | | Bishop of Saint-Flour, France |
| 4 Jul | 83.5 | Resigned | Friedrich Karl Joseph von Erthal † | Archbishop of Mainz, Germany | Archbishop Emeritus |
| 83.5 | Resigned | Friedrich Karl Joseph von Erthal † | Bishop of Worms, Germany | Archbishop Emeritus of Mainz, Germany |
| 5 Jul | 64.9 | Selected | Jean Dominique Altei † | Bishop of Scardona (Skradin), Croatia |
| 70.3 | Selected | François Bécherel † | Bishop of Valence, France |
| 45.5 | Selected | Arnaud-Ferdinand de La Porte † | Bishop of Carcassonne, France |
| 58.3 | Selected | Joseph-Jacques Loison † | Bishop of Bayonne, France |
| 6 Jul | 26.0 | Ordained Priest | Jakob Brand † | Priest of Mainz, Germany | Bishop of Limburg, Germany |
| 8 Jul | 75.0 | Died | Nicolas Notariis † | Bishop of Squillace, Italy |
| 10 Jul | 51.3 | Appointed | François Joseph Hirn † | Bishop of Tournai {Doornik}, Belgium |
| 46.3 | Confirmed | Jean-Eléonor Montanier de Belmont † | Bishop of Saint-Flour, France |
| 58.1 | Confirmed | Irénée-Yves Desolle (Dessole) † | Bishop of Digne, France | Archbishop Emeritus of Chambéry, France |
| 11 Jul | 43.8 | Ordained Bishop | Jean-Baptiste Colonna d’Istria † | Bishop of Nice, France | Bishop Emeritus |
| 47.3 | Ordained Bishop | Santiago Hernández Milanés † | Bishop of Mérida, Venezuela |
| 58.1 | Ordained Bishop | Irénée-Yves Desolle (Dessole) † | Bishop of Digne, France | Archbishop Emeritus of Chambéry, France |
| 63.4 | Installed | Jean-Chrysostome André de Villaret † | Bishop of Amiens, France | Bishop Emeritus of Casale Monferrato, Italy |
| 12 Jul | | Born | Francesco Bruni, C.M. † | | Bishop of Ugento, Italy |
| 80.7 | Died | Antônio Corrêa, O.E.S.A. † | Archbishop of São Salvador da Bahia, Brazil |
| 57.2 | Selected | Guillaume-Balthasar Cousin de Grainville † | Bishop of Cahors, France |
| 41.2 | Selected | Jean Jacoupy † | Bishop of Agen, France | Bishop Emeritus |
| 56.7 | Selected | Charles Mannay † | Bishop of Trier, Germany | Bishop of Rennes, France |
| 46.3 | Selected | Jean-Eléonor Montanier de Belmont † | Bishop of Saint-Flour, France |
| 13 Jul | 57.7 | Selected | Jean-Baptiste Duvoisin † | Bishop of Nantes, France |
| 14 Jul | 66.8 | Installed | Jérôme-Marie Champion de Cicé † | Archbishop of Aix, France |
| 15 Jul | 70.3 | Confirmed | François Bécherel † | Bishop of Valence, France |
| 68.7 | Died | François-Camille de Duranti de Lironcourt † | Titular Bishop of Bethleem |
| 41.2 | Confirmed | Jean Jacoupy † | Bishop of Agen, France | Bishop Emeritus |
| 17 Jul | 56.7 | Confirmed | Charles Mannay † | Bishop of Trier, Germany | Bishop of Rennes, France |
| 18 Jul | 51.4 | Ordained Bishop | François Joseph Hirn † | Bishop of Tournai {Doornik}, Belgium |
| 41.2 | Ordained Bishop | Jean Jacoupy † | Bishop of Agen, France | Bishop Emeritus |
| 23.2 | Ordained Priest | Patrick Kelly † | Priest of Ossory, Ireland | Bishop of Waterford and Lismore, Ireland |
| 56.7 | Ordained Bishop | Charles Mannay † | Bishop of Trier, Germany | Bishop of Rennes, France |
| 46.3 | Ordained Bishop | Jean-Eléonor Montanier de Belmont † | Bishop of Saint-Flour, France |
| 21 Jul | 57.3 | Confirmed | Guillaume-Balthasar Cousin de Grainville † | Bishop of Cahors, France |
| 45.9 | Selected | Johann Friedrich von Waldenstein-Wartenberg † | Bishop of Seckau, Austria |
| 23 Jul | 70.3 | Installed | François Bécherel † | Bishop of Valence, France |
| 24 Jul | 81.6 | Died | Matthieu François Antoine Philippe Guasco, O.F.M. Obs. † | Bishop Emeritus of Sagone (Sagona), France |
| 25 Jul | 57.7 | Confirmed | Jean-Baptiste Duvoisin † | Bishop of Nantes, France |
| 83.5 | Died | Friedrich Karl Joseph von Erthal † | Archbishop Emeritus of Mainz, Germany |
| Born | John Pius Leahy, O.P. † | | Bishop of Dromore, Ireland |
| 36.3 | Ordained Bishop | Pierre Trenchant, M.E.P. † | Titular Bishop of Corada | Coadjutor Vicar Apostolic of Se-Ciuen (Setchoan, Szechwan, Sichuan), China |
| 27 Jul | 25.8 | Ordained Deacon | Matevž (Matteo) Ravnikar (Raunicher) † | Deacon | Bishop of Trieste e Capodistria (Trst i Koper), Italy |
| 53.9 | Died | Michał Roman Sierakowski † | Auxiliary Bishop of Przemyśl, Poland |
| 30 Jul | 57.7 | Selected | Claude Simon † | Bishop of Grenoble, France |
| 31 Jul | 39.5 | Selected | Joseph Fesch † | Archbishop of Lyon, France | Cardinal, Archbishop of Lyon (-Vienne), France |
| 25.8 | Ordained Priest | Matevž (Matteo) Ravnikar (Raunicher) † | Priest | Bishop of Trieste e Capodistria (Trst i Koper), Italy |
| 1 Aug | 42.1 | Selected | Joseph Ludwig Colmar † | Bishop of Mainz, Germany |
| 57.3 | Ordained Bishop | Guillaume-Balthasar Cousin de Grainville † | Bishop of Cahors, France |
| 57.7 | Ordained Bishop | Jean-Baptiste Duvoisin † | Bishop of Nantes, France |
| 2 Aug | 75.4 | Died | Salvador Biempica y Sotomayor † | Bishop of Tlaxcala (Puebla de los Angeles), México |
| 25.8 | Ordained Priest | Bernard Georg Kellermann † | Priest of Münster, Germany | Bishop-Elect |
| 57.7 | Confirmed | Claude Simon † | Bishop of Grenoble, France |
| Born | Nicholas Patrick Stephen (Nicolás Patricio Esteban) Wiseman † | | Cardinal, Archbishop of Westminster, England, Great Britain |
| 4 Aug | 39.5 | Confirmed | Joseph Fesch † | Archbishop of Lyon, France | Cardinal, Archbishop of Lyon (-Vienne), France |
| 7 Aug | 42.1 | Confirmed | Joseph Ludwig Colmar † | Bishop of Mainz, Germany |
| 54.1 | Died | Paolo Maggiolo † | Bishop of Albenga, Italy |
| 8 Aug | 57.7 | Ordained Bishop | Claude Simon † | Bishop of Grenoble, France |
| 22.9 | Ordained Priest | Jan Frans (Jean-François) Van de Velde † | Priest | Bishop of Gent {Ghent, Gand}, Belgium |
| 9 Aug | 51.5 | Appointed | Alfonso Aguado y Jaraba † | Auxiliary Bishop of Toledo, Spain |
| 51.5 | Appointed | Alfonso Aguado y Jaraba † | Titular Bishop of Augustopolis in Phrygia | Auxiliary Bishop of Toledo, Spain |
| 72.1 | Died | [Antoine Butaud-Dupoux] † | Bishop Emeritus of [Allier (Constitutional), France] |
| 61.8 | Elevated to Cardinal | Carlo Francesco Maria Caselli, O.S.M. † | Cardinal, Bishop of Parma, Italy |
| 48.4 | Appointed | Mateo Delgado y Moreno † | Archbishop (Personal Title) of Badajoz, Spain | Bishop |
| 55.5 | Elevated to Cardinal | Michele Di Pietro † | Cardinal, Major Penitentiary of the Apostolic Penitentiary |
| 56.7 | Appointed | Franz Karl Joseph von Hohenlohe-Waldenburg-Schillingsfürst † | Auxiliary Bishop of Augsburg, Germany | Bishop |
| 56.7 | Appointed | Franz Karl Joseph von Hohenlohe-Waldenburg-Schillingsfürst † | Titular Bishop of Tempe | Bishop of Augsburg, Germany |
| 62.7 | Appointed | Alphonse-Hubert de Latier de Bayane † | Cardinal-Deacon of Sant’Angelo in Pescheria | Cardinal, Priest of the Roman Curia - Other |
| 62.7 | Elevated to Cardinal | Alphonse-Hubert de Latier de Bayane † | Cardinal, Priest of the Roman Curia - Other |
| 59.6 | Confirmed | Francisco Leitão de Carvalho, O. Cist. † | Bishop of Beja, Portugal |
| 49.4 | Appointed | Benito Lué y Riega † | Bishop of Buenos Aires, Argentina |
| 71.7 | Elevated to Cardinal | Domenico Pignatelli di Belmonte, C.R. † | Cardinal, Archbishop of Palermo, Italy |
| 40.9 | Appointed | Dionisio Ridolfini Conestabile † | Titular Archbishop of Corinthus | Bishop of Viterbo e Tuscania, Italy |
| 51.9 | Appointed | Luigi Ruffo Scilla † | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 51.9 | Appointed | Luigi Ruffo Scilla † | Cardinal-Priest of Santi Silvestro e Martino ai Monti | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 61.8 | Appointed | Bernardo Maria Serio † | Auxiliary Bishop of Palermo, Italy |
| 61.8 | Appointed | Bernardo Maria Serio † | Titular Bishop of Hermopolis Maior | Auxiliary Bishop of Palermo, Italy |
| 73.1 | Appointed | Domenico Spoto † | Bishop of Lipari, Italy | Bishop of Cefalù, Italy |
| 78.4 | Confirmed | Manuel do Cenáculo Villas Boas, T.O.R. † | Archbishop of Évora, Portugal |
| 60.6 | Appointed | Nicolás Videla del Pino † | Bishop of Paraguay (o Ssma Assunzione) | Bishop of Salta, Argentina |
| 10 Aug | 62.4 | Died | Damían Martínez de Galinzoga, O.F.M. Obs. † | Bishop of Tarazona, Spain |
| 11 Aug | 49.1 | Selected | Joaquim Maria Mascarenhas Castello Branco † | Bishop of Angola e Congo | Bishop Emeritus |
| Born | Bartholomäus Widmer † | | Bishop Emeritus of Ljubljana, Slovenia |
| 12 Aug | 84.1 | Died | Hyacinthe-Sigismond (Jean-François) Gerdil, B. † | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 13 Aug | 45.9 | Confirmed | Johann Friedrich von Waldenstein-Wartenberg † | Bishop of Seckau, Austria |
| 14 Aug | | Born | Fabio Maria Asquini † | | Cardinal, Secretary of the Roman Curia - Other |
| 15 Aug | 39.6 | Ordained Bishop | Joseph Fesch † | Archbishop of Lyon, France | Cardinal, Archbishop of Lyon (-Vienne), France |
| Born | Bernard-Vincent Laribe, C.M. † | | Vicar Apostolic of Kiam-Si {Kiangsi}, China |
| 40.9 | Ordained Bishop | Dionisio Ridolfini Conestabile † | Titular Archbishop of Corinthus | Bishop of Viterbo e Tuscania, Italy |
| 45.9 | Ordained Bishop | Johann Friedrich von Waldenstein-Wartenberg † | Bishop of Seckau, Austria |
| 16 Aug | 70.7 | Appointed | Stefano Borgia † | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 18 Aug | 58.3 | Appointed | Michelangelo Luchi, O.S.B. † | Prefect of the Roman Curia - Other | Cardinal, Priest |
| 24 Aug | 42.1 | Ordained Bishop | Joseph Ludwig Colmar † | Bishop of Mainz, Germany |
| 66.9 | Died | [Nicolas Francin] † | Bishop of [Moselle (Constitutional), France] |
| 42.6 | Ordained Bishop | Peter McLaughlin † | Bishop of Raphoe, Ireland | Bishop of Derry, Ireland |
| 28 Aug | | Born | Angelo Quaglia † | | Cardinal, Priest of the Roman Curia - Other |
| Sep | 54.5 | Ordained Bishop | Francisco Javier Mier y Campillo † | Bishop of Almería, Spain | Bishop Emeritus |
| 3 Sep | 45.6 | Confirmed | Arnaud-Ferdinand de La Porte † | Bishop of Carcassonne, France |
| 5 Sep | 56.7 | Ordained Bishop | Franz Karl Joseph von Hohenlohe-Waldenburg-Schillingsfürst † | Titular Bishop of Tempe | Bishop of Augsburg, Germany |
| 45.6 | Ordained Bishop | Arnaud-Ferdinand de La Porte † | Bishop of Carcassonne, France |
| 56.9 | Ordained Bishop | Klaus Münst von Uttenweiler, O.F.M. Cap. † | Titular Bishop of Myndus |
| 7 Sep | 47.1 | Died | Buenaventura Moyano Rodríguez † | Bishop of Palencia, Spain |
| 8 Sep | 80.9 | Died | Gabriel-François Moreau † | Bishop of Autun, France |
| 11 Sep | | Born | Sébastin-Théophille Neyret, M.S.F.S. † | | Vicar Apostolic of Vizagapatnam, India |
| Born | Giovanni Battista Siciliani, O.F.M. Conv. † | | Bishop of Capaccio e Vallo della Lucania, Italy |
| 12 Sep | 53.7 | Ordained Bishop | Ambrosio Llano † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 47.2 | Ordained Bishop | Primo Feliciano Marín y Porras, O.F.M. † | Bishop of Linares o Nueva León, Nuevo León, México |
| 16 Sep | 53.5 | Resigned | Marcelino José Da Silva † | Bishop of Macau, China | Bishop Emeritus |
| 17 Sep | 74.4 | Died | [Michel-Joseph Dufraisse] † | Bishop Emeritus of [Cher (Constitutional), France] |
| 18 Sep | 23.5 | Ordained Priest | Vincenzo Annovazzi † | Priest | Bishop Emeritus of Anagni, Italy |
| 49.2 | Selected | Pietro Bianco † | Bishop of Alghero, Italy |
| 22.0 | Ordained Deacon | Johann Aloys Hoffmann † | Deacon of Salzburg, Austria | Auxiliary Bishop |
| 23.6 | Ordained Priest | José de Moura Coutinho † | Priest | Bishop of Lamego, Portugal |
| 22.1 | Ordained Deacon | Sebastiano Soldati † | Deacon | Bishop of Treviso, Italy |
| 61.8 | Selected | Alberto Maria Giuseppe Andrea Luigi Solinas † | Bishop of Galtelli-Nuoro (Galtelly Nori), Italy |
| 22.5 | Ordained Priest | Francesco di Paola Villadecani † | Priest of Messina, Italy | Cardinal, Archbishop |
| 19 Sep | 59.7 | Died | Ivan Dominik Juras † | Bishop of Pula (Pola), Croatia |
| 20 Sep | 46.8 | Appointed | Agostino Albergotti † | Bishop of Arezzo, Italy |
| 97.8 | Died | Lodovico Agostino Bertozzi † | Bishop of Cagli, Italy |
| 44.8 | Appointed | Pellegrino Maria Carletti † | Bishop of Montepulciano, Italy |
| 61.9 | Appointed | Carlo Francesco Maria Caselli, O.S.M. † | Cardinal-Priest of San Marcello | Cardinal, Bishop of Parma, Italy |
| 48.5 | Appointed | Giuseppe Della Casa † | Bishop of Alatri, Italy |
| 55.8 | Appointed | Girolamo della Porta † | Cardinal-Priest of San Pietro in Vincoli | Cardinal, Prefect of the Roman Curia - Other |
| 55.6 | Appointed | Michele Di Pietro † | Cardinal-Priest of Santa Maria in Via | Cardinal, Major Penitentiary of the Apostolic Penitentiary |
| 50.8 | Appointed | Giuseppe Maria Doria Pamphilj † | Cardinal-Priest of Santa Cecilia | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 61.6 | Appointed | Filippo Ganucci † | Bishop of Cortona, Italy | Bishop of Livorno, Italy |
| 50.5 | Appointed | Filippo Ghighi † | Bishop of Sovana (Soana), Italy |
| 33.4 | Appointed | Carlo Oppizzoni (Opizoni) † | Archbishop of Bologna, Italy | Cardinal, Archbishop Emeritus |
| 60.6 | Appointed | Florido Pierleoni, C.O. † | Bishop of Acquapendente, Italy |
| 45.4 | Appointed | Fabrizio Sceberras Testaferrata † | Titular Archbishop of Berytus | Cardinal, Bishop of Senigallia, Italy |
| 40.1 | Appointed | Gregor von Zirkel † | Auxiliary Bishop of Würzburg, Germany |
| 40.1 | Appointed | Gregor von Zirkel † | Titular Bishop of Hippos | Auxiliary Bishop of Würzburg, Germany |
| 21 Sep | 46.8 | Ordained Bishop | Agostino Albergotti † | Bishop of Arezzo, Italy |
| 33.4 | Ordained Bishop | Carlo Oppizzoni (Opizoni) † | Archbishop of Bologna, Italy | Cardinal, Archbishop Emeritus |
| 73.2 | Ordained Bishop | Domenico Spoto † | Bishop of Lipari, Italy | Bishop of Cefalù, Italy |
| 22 Sep | 78.4 | Died | Marc-Antoine de Noé † | Bishop of Troyes, France |
| 23 Sep | | Born | Carlo Macchi † | | Bishop of Reggio Emilia, Italy |
| 26 Sep | 44.8 | Ordained Bishop | Pellegrino Maria Carletti † | Bishop of Montepulciano, Italy |
| 48.5 | Ordained Bishop | Giuseppe Della Casa † | Bishop of Alatri, Italy |
| 61.6 | Ordained Bishop | Filippo Ganucci † | Bishop of Cortona, Italy | Bishop of Livorno, Italy |
| 50.5 | Ordained Bishop | Filippo Ghighi † | Bishop of Sovana (Soana), Italy |
| 60.6 | Ordained Bishop | Florido Pierleoni, C.O. † | Bishop of Acquapendente, Italy |
| 62.0 | Ordained Bishop | Bernardo Maria Serio † | Titular Bishop of Hermopolis Maior | Auxiliary Bishop of Palermo, Italy |
| 27 Sep | | Born | Cosme Marrodán y Rubio † | | Bishop of Tarazona, Spain |
| 29 Sep | 58.4 | Died | Michelangelo Luchi, O.S.B. † | Prefect of the Roman Curia - Other | Cardinal, Priest |
| 30 Sep | 39.5 | Selected | Luc-Jean-Baptiste Bailly † | Bishop of Poitiers, France |