| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 53.3 | Resigned | Antonio Ludovico Antinori † | Archbishop of Acerenza e Matera, Italy | Archbishop Emeritus |
| Died | Walter Blake † | Bishop of Achonry, Ireland |
| 56.0 | Appointed | Nicolas de Bouillé de Saint-Géran † | Bishop of Autun, France |
| 41.2 | Appointed | Gaspar de Bragança † | Archbishop of Braga, Portugal |
| Appointed | Francesco Castellini † | Bishop of Tivoli, Italy |
| Born | Antonio Cerezano Camarena † | Santo Domingo | Archbishop-Elect of Santo Domingo, Dominican Republic |
| 17.4 | Professed | Barnaba (Gregorio) Chiaramonti, O.S.B. † | Member of Order of Saint Benedict | Pope (Roma {Rome}, Italy) |
| Died | Nicola Cioffi † | Archbishop of Amalfi, Italy |
| Appointed | António Caetano da Rocha † | Bishop of Angra, Portugal |
| 23.8 | Ordained Priest | Matthew Gibson † | Priest | Vicar Apostolic of Northern District, England, Great Britain |
| 20.8 | Professed | Adalbert Freiherr (Wilhelm Adolph Heinrich) von Harstall, O.S.B. † | Member of Order of Saint Benedict | Bishop of Fulda, Germany |
| 57.0 | Ordained Bishop | Miguel Lino de Ezpeleta † | Bishop of Cebu, Philippines |
| 58.0 | Appointed | Theophilus McCartan † | Bishop of Down and Connor, Ireland |
| 54.3 | Died | Antonio Nogueira † | Bishop of São Tomé e Príncipe |
| Died | Michael O'Reilly † | Archbishop of Armagh, Ireland |
| Appointed | Antonio Puoti † | Archbishop of Amalfi, Italy |
| 66.4 | Ordained Bishop | Bartolomé Rull, O.S. † | Bishop of Malta |
| Died | Józef Eustachy Szembek † | Bishop of Płock, Poland |
| 61.1 | Ordained Bishop | Pedro Zamorana Romezal † | Bishop of Durango, Durango, México |
| 19 Jan | | Born | Pedro García Panés, O.F.M. † | Jarandilla, Spain | Bishop of Paraguay |
| 30 Jan | 55.9 | Died | Luigi Mattei † | Cardinal, Cardinal-Priest of S. Maria in Ara Coeli |
| 2 Feb | 33.0 | Appointed | Jean-Baptiste-Marie Champion de Cicé † | Bishop of Troyes, France | Bishop of Auxerre, France |
| 5 Feb | 60.0 | Died | Ferdinand Julius Graf von Troyer † | Cardinal, Bishop of Olomouc, Czech Republic |
| 11 Feb | | Born | Franz Ignaz von Streber † | Reisach | Auxiliary Bishop of München und Freising {Munich}, Germany |
| 18 Feb | 25.4 | Ordained Priest | Jacinto Carlos da Silveira † | Priest | Bishop Emeritus of São Luís do Maranhão, Brazil |
| 22.9 | Ordained Priest | Ferenc Herzan von Harras † | Priest | Cardinal, Bishop of Szombathely, Hungary |
| 2 Mar | 77.5 | Died | Pierre Guérin de Tencin † | Cardinal, Archbishop of Lyon, France |
| 12 Mar | | Born | Giuseppe Morozzo Della Rocca † | Turin | Cardinal, Bishop of Novara, Italy |
| 13 Mar | 51.5 | Appointed | Diego del Corro † | Archbishop of Lima, Peru |
| 62.3 | Appointed | Francisco Javier de Luna Victoria y Castro † | Bishop of Trujillo, Peru |
| 83.2 | Appointed | Juan Manuel Jeronimo de Romaní y Carrillo † | Bishop of Panamá | Bishop of Cuzco, Peru |
| 61.2 | Appointed | Cayetano Marcellano y Agramont † | Archbishop of La Plata o Charcas, Bolivia |
| 33.3 | Confirmed | Louis-Joseph de Montmorency-Laval † | Bishop of Condom, France | Cardinal, Bishop Emeritus of Metz, France |
| 64.0 | Appointed | Blas Roldán, O.S.H. † | Bishop of Segorbe, Spain |
| 14 Mar | | Born | Adam Friedrich Freiherr von Groß zu Trockau † | Würzburg | Bishop of Würzburg, Germany |
| Born | Agostino Rivarola † | Genoa | Cardinal, Priest of Roma {Rome}, Italy |
| 16 Mar | 44.6 | Appointed | Antoine de Malvin de Montazet † | Archbishop of Lyon, France |
| 2 Apr | 48.9 | Ordained Bishop | Francisco Alejandro Bocanegra Jivaja † | Bishop of Guadix, Spain | Archbishop of Santiago de Compostela, Spain |
| 28.6 | Ordained Priest | George Hay † | Priest | Vicar Apostolic Emeritus of Lowland District, Scotland, Great Britain |
| 7 Apr | | Born | Jerónimo Fernandez de Castro Delgado, O.SS.T. † | Baltar | Bishop of Albarracin, Spain |
| 74.4 | Died | Pedro González García † | Bishop of Avila, Spain |
| 9 Apr | | Born | Jean-Louis-Simon Lemercier † | Beauvais | Bishop Emeritus of Beauvais, France |
| 17 Apr | | Born | Gabrio Maria Nava † | Barzanò | Bishop of Brescia, Italy |
| 22 Apr | | Born | Giovanni Battista de Martino di Pietradoro † | Napoli | Bishop of Telese o Cerreto Sannita, Italy |
| 23 Apr | 64.1 | Ordained Bishop | Blas Roldán, O.S.H. † | Bishop of Segorbe, Spain |
| 27 Apr | 62.0 | Appointed | Leopold Friedrich Reichsgraf von Egkh und Hungersbach † | Bishop of Olomouc, Czech Republic |
| 30 Apr | 40.0 | Ordained Bishop | Raymund Anton Graf von Strasoldo † | Bishop of Eichstätt, Germany |
| 3 May | | Born | Andrés García Palomares † | Madrid | Bishop of Albarracin, Spain |
| 83.1 | Died | Prospero Lorenzo Lambertini † | Pope (Roma {Rome}, Italy) |
| 14 May | 36.7 | Appointed | Arthur-Richard Dillon † | Archbishop of Toulouse, France | Archbishop of Narbonne, France |
| 18 May | 23.4 | Professed | Manuel Obellar, O.P. † | Member of Order of Friars Preachers | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viêt Nam |
| 20 May | 23.2 | Ordained Priest | Diego Gregorio Cadello † | Priest of Cagliari, Italy | Cardinal, Archbishop |
| 24.0 | Ordained Priest | Luca Nicola De Luca † | Priest | Bishop Emeritus of Trivento, Italy |
| 23.2 | Ordained Priest | Joseph-Antoine (Maxime) Guisolan, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop of Lausanne, Switzerland |
| 30 May | 56.3 | Died | François de Crussol d'Uzès † | Archbishop of Toulouse, France |
| 5 Jun | | Born | Pedro Valero † | Pozondón | Bishop of Gerona, Spain |
| 11 Jun | 22.8 | Ordained Priest | Kajetan Maria (Ignaz Judas Thaddäus) Reisach, C.R. † | Priest of Congregation of Clerics Regular | Titular Bishop of Dibon |
| 18 Jun | 61.5 | Installed | Pedro Anselmo Sánchez de Tagle † | Bishop of Michoacán, Michoacán, México |
| 2 Jul | 65.9 | Appointed | Aleixo de Miranda Henriques, O.P. † | Bishop of Miranda, Portugal | Bishop of Porto, Portugal |
| 6 Jul | 65.3 | Elected | Carlo della Torre Rezzonico † | Pope (Roma {Rome}, Italy) |
| 9 Jul | 71.5 | Died | José Manuel da Cámara d'Atalaia † | Cardinal, Patriarch of Lisboa, Portugal |
| 15 Jul | 75.0 | Appointed | Carlo Alberto Guidobono Cavalchini † | Cardinal, Datary of the Apostolic Datary |
| 16 Jul | 45.2 | Appointed | Edmond Bennetat, M.E.P. † | Coadjutor Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viêt Nam |
| 65.4 | Installed | Carlo della Torre Rezzonico † | Pope (Roma {Rome}, Italy) |
| 17 Jul | | Born | Pedro Valera y Jiménez † | Santo Domingo | Archbishop of Santo Domingo, Dominican Republic |
| 22 Jul | | Born | Carlo Giuseppe Maria Sappa de Milanes † | Alessandria | Bishop of Acqui, Italy |
| 2 Aug | 55.6 | Installed | Paul d’Albert de Luynes † | Cardinal-Priest of S. Tommaso in Parione | Cardinal, Archbishop of Sens, France |
| 33.5 | Confirmed | Jean-Baptiste-Marie Champion de Cicé † | Bishop of Troyes, France | Bishop of Auxerre, France |
| 36.9 | Confirmed | Arthur-Richard Dillon † | Archbishop of Toulouse, France | Archbishop of Narbonne, France |
| 45.0 | Confirmed | Antoine de Malvin de Montazet † | Archbishop of Lyon, France |
| Born | Francesco Maria Paolucci Mancinelli † | Todi | Bishop of Fano, Italy |
| 61.6 | Installed | Etienne-René Potier de Gesvres † | Cardinal-Priest of S. Agnese fuori le mura | Cardinal, Bishop Emeritus of Beauvais, France |
| 52.4 | Appointed | Franz Konrad Kasimir Ignaz Reichsfreiherr von Rodt † | Cardinal-Priest of S. Maria del Popolo | Cardinal, Bishop of Konstanz {Constance}, Germany |
| 11 Aug | 15.4 | Professed | Józef Gabriel Gembart † | Member of Society of Jesus | Auxiliary Bishop of Gniezno-Poznań, Poland |
| 20 Aug | 29.1 | Ordained Priest | Antonín Theodor Colloredo von Wallsee und Mels † | Priest of Olomouc, Czech Republic | Cardinal, Archbishop of Olomouc, Czech Republic |
| 21 Aug | | Appointed | Anthony Blake † | Archbishop of Armagh, Ireland |
| Appointed | James Brady † | Bishop of Ardagh (and Clonmacnois), Ireland |
| Appointed | Patrick Robert Kirwan † | Bishop of Achonry, Ireland |
| 24 Aug | 49.9 | Ordained Bishop | Manuel Antonio Rojo del Rio Vera † | Archbishop of Manila, Philippines |
| 25 Aug | | Born | Bartolomeo Goglia † | Vitolano | Bishop of Sant’Angelo dei Lombardi-Bisaccia, Italy |
| 29 Aug | 61.0 | Died | Joseph-Hubert de Boccard † | Bishop of Lausanne, Switzerland |
| 30 Aug | | Born | Cristóbal Bencomo Rodríguez † | La Laguna, Spain | Archbishop of the unknown of Titular See |
| 3 Sep | 33.6 | Ordained Bishop | Jean-Baptiste-Marie Champion de Cicé † | Bishop of Troyes, France | Bishop of Auxerre, France |
| 35.2 | Appointed | Louis-Charles du Plessis d'Argentré † | Bishop of Limoges, France |
| 4 Sep | | Born | Jean-Baptiste Colonna d'Istria † | Petreto-Bicchisano | Bishop Emeritus of Nice, France |
| 7 Sep | 56.9 | Succeeded | Francesco Felice Alberti d’Enno † | Bishop of Trento, Italy |
| 72.5 | Died | Dominikus Anton Reichsgraf von Thun † | Bishop of Trento, Italy |
| 11 Sep | 34.4 | Elevated to Cardinal | Carlo Rezzonico, Jr. † | In Pectore | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 16 Sep | | Born | Pietro Francesco Morali † | San Miniato al Tedesco | Archbishop of Firenze {Florence}, Italy |
| 19 Sep | 56.4 | Died | Wojciech Stanisław Leski, O. Cist. † | Bishop of Chelmno (Culma), Poland |
| 22 Sep | 67.0 | Succeeded | Richard Challoner † | Vicar Apostolic of London District, England, Great Britain |
| 23 Sep | 23.4 | Ordained Priest | Johann Leopold Ritter von Hay † | Priest of Olomouc, Czech Republic | Bishop of Hradec Králové, Czech Republic |
| 2 Oct | 42.1 | Appointed | Wilhelm von Alhaus, O.S.C. † | Auxiliary Bishop of Münster, Germany |
| 42.1 | Appointed | Wilhelm von Alhaus, O.S.C. † | Titular Bishop of Arad | Auxiliary Bishop of Münster, Germany |
| 62.4 | Confirmed | Leopold Friedrich Reichsgraf von Egkh und Hungersbach † | Bishop of Olomouc, Czech Republic |
| 62.4 | Appointed | Ludwig Hatteisen, O.S.B. † | Auxiliary Bishop of Hildesheim, Germany |
| 62.4 | Appointed | Ludwig Hatteisen, O.S.B. † | Titular Bishop of Anemurium | Auxiliary Bishop of Hildesheim, Germany |
| 45.5 | Appointed | Antoni Kazimierz Ostrowski † | Coadjutor Bishop of Włocławek, Poland | Archbishop of Gniezno, Poland |
| 43.4 | Elevated to Cardinal | François-Joachim de Pierre de Bernis † | Cardinal, Archbishop of Albi, France |
| 34.4 | Appointed | Carlo Rezzonico, Jr. † | Cardinal-Priest of S. Lorenzo in Damaso | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 34.4 | Elevated to Cardinal | Carlo Rezzonico, Jr. † | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 47.8 | Appointed | Francisco San Andrés, O.S.H. † | Auxiliary Bishop of Salamanca, Spain |
| 47.8 | Appointed | Francisco San Andrés, O.S.H. † | Titular Bishop of Zela | Auxiliary Bishop of Salamanca, Spain |
| 33.6 | Appointed | Henry Benedict Mary Clement Stuart of York † | Titular Archbishop of Corinthus | Cardinal, Bishop of Frascati, Italy |
| 57.8 | Appointed | Romualdo Velarde Cienfuegos † | Bishop of Avila, Spain |
| 5 Oct | 50.9 | Ordained Priest | Emmerich Joseph Reichsfreiherr von Breidbach zu Bürresheim † | Priest of Mainz, Germany | Archbishop |
| 6 Oct | | Born | Baldassare Rasponti † | Ravenna | Archbishop of Udine, Italy |
| 9 Oct | 70.2 | Died | Juan Elías Gómez Terán † | Bishop of Orihuela, Spain |
| 17 Oct | | Born | Luigi Ercolani † | Foligno | Cardinal, Cardinal-Priest of S. Marco |
| 28 Oct | 79.1 | Died | Aloysius Foscari † | Archbishop of Venezia {Venice}, Italy | Patriarch |
| 30 Oct | | Born | Gaetano Maria Avarna † | Messina | Bishop of Nicosia, Italy |
| 11 Nov | | Born | Marcin von Siemieński † | Runów Krajenski | Auxiliary Bishop of Gniezno-Poznań, Poland |
| 18 Nov | 46.8 | Appointed | Andrzej Ignacy Baier † | Bishop of Chelmno (Culma), Poland |
| 19 Nov | 62.5 | Ordained Bishop | Leopold Friedrich Reichsgraf von Egkh und Hungersbach † | Bishop of Olomouc, Czech Republic |
| 33.7 | Ordained Bishop | Henry Benedict Mary Clement Stuart of York † | Titular Archbishop of Corinthus | Cardinal, Bishop of Frascati, Italy |
| 22 Nov | 46.2 | Appointed | Carlo Vittorio Amedeo delle Lanze † | Cardinal-Priest of S. Anastasia | Cardinal, Prefect of the Congregation of the Council |
| 49.7 | Appointed | Joseph-Nicolas de Montenach † | Bishop of Lausanne, Switzerland |
| 66.0 | Appointed | Camillo Paolucci † | Cardinal-Bishop of Frascati | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 26 Nov | 24.2 | Ordained Priest | Paolo Girolamo Orengo, Sch. P. † | Priest of Order of the Pious Schools | Bishop of Ventimiglia, Italy |
| 47.9 | Ordained Bishop | Francisco San Andrés, O.S.H. † | Titular Bishop of Zela | Auxiliary Bishop of Salamanca, Spain |
| 57.9 | Ordained Bishop | Romualdo Velarde Cienfuegos † | Bishop of Avila, Spain |
| 27 Nov | 59.3 | Appointed | Giovanni Bragadino (Bragadin) † | Patriarch of Venezia {Venice}, Italy |
| 28 Nov | | Born | Francesco Saverio (François-Xavier) Pereira † | Rome | Bishop of Rieti, Italy |
| 3 Dec | 37.2 | Appointed | Gabriel-François Moreau † | Bishop of Vence, France | Bishop of Autun, France |
| 16 Dec | 63.0 | Died | Andrzej Stanisław Załuski † | Bishop of Kraków, Poland |
| 18 Dec | 35.5 | Confirmed | Louis-Charles du Plessis d'Argentré † | Bishop of Limoges, France |
| Born | Emmanuele de Gregorio † | (at sea) | Cardinal, Secretary of the Roman Curia - Other |
| 19 Dec | | Born | Domenico Ricciardone † | Chieti | Bishop of Penne-Atri, Italy |
| 22 Dec | 86.4 | Died | Benjamin Petre, O.S.B. † | Vicar Apostolic of London District, England, Great Britain |
| 23 Dec | 24.1 | Ordained Priest | Johann Michael Josef von Pidoll de Quitenbach † | Priest of Trier, Germany | Bishop of Le Mans, France |