| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 49.3 | Appointed | Antonio Ludovico Antinori † | Archbishop of Acerenza e Matera, Italy | Archbishop Emeritus |
| 83.8 | Appointed | Giovanni Maria Benzoni † | Titular Archbishop of Nazianzus | Bishop Emeritus of Chioggia, Italy |
| 50.0 | Appointed | Lodovico Agostino Bertozzi † | Bishop of Cagli, Italy |
| Died | Fabrizio Borgia † | Bishop of Ferentino, Italy |
| Appointed | Pierre-Joseph de Brunes de Monlouet † | Bishop of Saint-Omer, France |
| 36.6 | Appointed | Giuseppe Maria Carafa † | Bishop of Trivento, Italy | Bishop of Mileto, Italy |
| Died | Francesco Carafa † | Bishop of Nardò, Italy |
| Appointed | Muzio Gaeta † | Archbishop of Capua, Italy |
| Appointed | Girolamo Gravina † | Bishop of Patti, Italy |
| Ordained Bishop | Juan de La Fuente Yepes † | Bishop of Nueva Segovia, Philippines |
| Born | Patrick Lambert, O.F.M. † | Gurtinminogue, Ireland | Vicar Apostolic Emeritus of Newfoundland, Canada |
| 62.8 | Resigned | Francesco Lanfreschi † | Archbishop of Acerenza e Matera, Italy | Archbishop Emeritus |
| 19.6 | Ordained Priest | Yves-Alexandre de Marbeuf † | Priest | Archbishop of Lyon, France |
| Born | Agostino Olivieri, Sch. P. † | Genova | Titular Bishop of Arethusa |
| Appointed | Pierre-Annet de Pérouse † | Bishop of Gap, France |
| Appointed | Marco Aurelio Petruccelli † | Bishop of Nardò, Italy |
| 79.0 | Ordained Bishop | Luciano Santiago † | Bishop of Nueva Segovia, Philippines |
| 50.0 | Appointed | Francesco Testa † | Archbishop of Monreale, Italy |
| Born | Giovanni Franceso Toppia † | | Bishop of Vigevano, Italy |
| Born | Charles Tuohy † | Limerick | Bishop of Limerick, Ireland |
| Died | Joseph-Alphonse de Valbelle de Tourves † | Bishop of Saint-Omer, France |
| 4 Jan | 75.0 | Died | François-Firmin Trudaine † | Bishop of Senlis, France |
| 5 Jan | | Born | Columbano Giovanni Battista Carlo Gaspare Chiaverotti, O.S.B. † | Torino | Archbishop of Torino {Turin}, Italy |
| 6 Jan | | Born | Amedeo Bruno di Samone † | Cuneo | Bishop of Cuneo, Italy |
| 14 Jan | 29.1 | Confirmed | Louis-Joseph de Montmorency-Laval † | Bishop of Orléans, France | Cardinal, Bishop Emeritus of Metz, France |
| 46.4 | Confirmed | Anton Peter Graf Przichowsky von Przichowitz † | Bishop of Hradec Králové, Czech Republic | Archbishop of Praha {Prague}, Czech Republic |
| 28 Jan | 53.9 | Appointed | Filippo Acciajuoli † | Apostolic Nuncio to Portugal | Cardinal, Bishop of Ancona e Numana, Italy |
| 29 Jan | | Born | Blas Joaquín Alvarez Palma † | Jerez de la Frontera | Archbishop of Granada, Spain |
| 2 Feb | | Born | Charles-Maurice de Talleyrand-Périgord † | Paris | Bishop Emeritus of Autun, France |
| 4 Feb | 47.5 | Appointed | Johann Baptist Reichsgraf von Thurn und Taxis † | Bishop of Lavant, Slovenia |
| 6 Feb | | Born | Antoine-Eustache d'Osmond † | Ouanaminthe, Dominican Republic | Bishop of Nancy, France |
| 7 Feb | 64.1 | Died | Manuel López Aguirre † | Bishop of Barcelona, Spain |
| 8 Feb | 60.0 | Resigned | Giuseppe Spinelli † | Archbishop of Napoli {Naples}, Italy | Cardinal, Cardinal-Bishop of Ostia |
| 10 Feb | 29.2 | Ordained Bishop | Louis-Joseph de Montmorency-Laval † | Bishop of Orléans, France | Cardinal, Bishop Emeritus of Metz, France |
| 11 Feb | 61.8 | Appointed | Francisco Xavier Aranha † | Coadjutor Bishop of Olinda, Brazil | Bishop |
| 61.8 | Appointed | Francisco Xavier Aranha † | Titular Bishop of Thermopylae | Bishop of Olinda, Brazil |
| 53.1 | Appointed | Manuel de Matos, O.F.M. † | Bishop of Nueva Caceres, Philippines |
| 51.4 | Appointed | Johann Georg Freiherr von Stinglheim † | Auxiliary Bishop of Regensburg, Germany |
| 51.4 | Appointed | Johann Georg Freiherr von Stinglheim † | Titular Bishop of Botrys | Auxiliary Bishop of Regensburg, Germany |
| 15 Feb | | Born | Mateo Delgado Moreno † | Oliva de Jérez | Bishop of Badajoz, Spain |
| 26 Feb | | Born | Juan Nepomuceno Lera Cano † | Peñas de San Pedro | Bishop of Segovia, Spain |
| 27 Feb | 83.4 | Died | Tomás de Almeida † | Cardinal, Patriarch of Lisboa, Portugal |
| 3 Mar | 22.9 | Ordained Priest | Ernest Johann Nepomuk Reichsgraf von Herberstein (Herbstein) † | Priest of Freising, Germany | Bishop of Linz, Austria |
| 5 Mar | | Born | José González de Cándamo y Cauniego † | La Piñera, Spain | Auxiliary Bishop of San Cristobal de la Habana, Cuba |
| 6 Mar | 62.2 | Died | Juan González Melgarejo † | Bishop of Arequipa, Peru |
| 10 Mar | 34.4 | Ordained Deacon | Lazzaro Opiziio Pallavicino † | Deacon | Cardinal, Secretary of the Secretariat of State |
| 16 Mar | | Born | Giuseppe Della Casa † | Rome | Bishop of Alatri, Italy |
| 17 Mar | 33.1 | Appointed | Jean-Armand de Bessuéjouls Roquelaure † | Bishop of Senlis, France | Archbishop Emeritus of Mechelen, Belgium |
| Born | Alexis Potsy † | Kokad | Bishop of Mukacheve (Ruthenian), Ukraine |
| 19 Mar | 34.4 | Ordained Priest | Lazzaro Opiziio Pallavicino † | Priest | Cardinal, Secretary of the Secretariat of State |
| 58.2 | Died | Giuseppe Ruffo † | Archbishop of Capua, Italy |
| 24 Mar | 51.6 | Ordained Bishop | Johann Georg Freiherr von Stinglheim † | Titular Bishop of Botrys | Auxiliary Bishop of Regensburg, Germany |
| 30 Mar | 22.8 | Ordained Priest | Franz Philipp Graf von Inzaghi † | Priest of Salzburg, Austria | Bishop of Gorizia e Gradisca, Italy |
| 25.4 | Ordained Priest | Antoine-Eléonore-Léon Le Clerc de Juigné † | Priest | Archbishop Emeritus of Paris, France |
| 31 Mar | 47.6 | Ordained Bishop | Johann Baptist Reichsgraf von Thurn und Taxis † | Bishop of Lavant, Slovenia |
| 1 Apr | 50.5 | Appointed | Juan Francisco Manrique Lara † | Bishop of Oviedo, Spain | Bishop of Plasencia, Spain |
| 34.4 | Appointed | Lazzaro Opiziio Pallavicino † | Titular Archbishop of Naupactus | Cardinal, Secretary of the Secretariat of State |
| 3 Apr | 85.0 | Died | Louis-Daniel-Gabriel de Pestel de Levis de Trubières de Caylus † | Bishop of Auxerre, France |
| 7 Apr | 34.4 | Ordained Bishop | Lazzaro Opiziio Pallavicino † | Titular Archbishop of Naupactus | Cardinal, Secretary of the Secretariat of State |
| 13 Apr | 24.3 | Ordained Priest | Diego de Jesus Jardim, O.S.H. † | Priest of Orden de San Jerónimo | Bishop of Elvas, Portugal |
| 21 Apr | 27.3 | Ordained Priest | Federico Maria Giovanelli † | Priest | Patriarch of Venezia {Venice}, Italy |
| 57.1 | Ordained Bishop | José Gómez † | Bishop of Zamora, Spain |
| 22 Apr | 60.9 | Died | Pedro Felipe de Azúa e Iturgoyen † | Archbishop Emeritus of Santafé en Nueva Granada, Colombia |
| 62.2 | Died | Louis-Bernard de La Taste, O.S.B. † | Bishop of Bethléem, France |
| 28 Apr | | Born | Jean Lambert de Hannotte † | Liège, France | Titular Bishop of Teos |
| 1 May | | Born | Francesco Bertazzoli † | Lugo | Cardinal, Prefect of the Congregation for Studies |
| Ordained Bishop | José Antonio Flores de Rivera † | Bishop of León en Nicaragua |
| 5 May | | Born | Michele Sanseverino † | Foggia | Bishop of Gaeta, Italy |
| 16 May | | Born | Louis-Sylvestre de La Châtre † | Paris, France | Titular Bishop of Himeria |
| 20 May | 33.2 | Confirmed | Jean-Armand de Bessuéjouls Roquelaure † | Bishop of Senlis, France | Archbishop Emeritus of Mechelen, Belgium |
| 44.9 | Appointed | Augstín González Pisador † | Auxiliary Bishop of Toledo, Spain | Bishop of Oviedo, Spain |
| 67.4 | Appointed | José Manuel da Cámara d'Atalaia † | Cardinal, Patriarch of Lisboa, Portugal |
| 21 May | 34.6 | Appointed | Lazzaro Opiziio Pallavicino † | Apostolic Nuncio to Italy | Cardinal, Secretary of the Secretariat of State |
| 2 Jun | | Appointed | José Javier de Arauz y Rojas † | Archbishop of Santafé en Nueva Granada, Colombia |
| 42.7 | Ordained Deacon | Flavio Chigi † | Deacon of S. Angelo in Pescheria | Cardinal, Prefect of the Congregation of Rites |
| 58.4 | Ordained Bishop | José Vidal de Moctezuma y Tobar, O. de M. † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| 16 Jun | 33.3 | Ordained Bishop | Jean-Armand de Bessuéjouls Roquelaure † | Bishop of Senlis, France | Archbishop Emeritus of Mechelen, Belgium |
| 20 Jun | | Born | Paul-Ambroise Frère de Villefrancon † | Besançon | Archbishop of Besançon, France |
| 26 Jun | | Born | Peter Klobusiczky † | Fejér-Gyarmat | Archbishop of Kalocsa, Hungary |
| 29 Jun | 50.6 | Appointed | Jacques-Marie de Caritat de Condorcet † | Bishop of Auxerre, France | Bishop of Lisieux, France |
| 30 Jun | 45.0 | Ordained Bishop | Augstín González Pisador † | Auxiliary Bishop of Toledo, Spain | Bishop of Oviedo, Spain |
| 1 Jul | 67.5 | Ordained Bishop | José Manuel da Cámara d'Atalaia † | Cardinal, Patriarch of Lisboa, Portugal |
| 4 Jul | 51.5 | Appointed | Charles-Marie de Quélen † | Bishop of Bethléem, France |
| Born | Giulio Rossi † | Pistoia | Bishop of Pescia, Italy |
| 11 Jul | 53.1 | Appointed | Johann Philipp Reichsgraf von Waldendorff † | Coadjutor Archbishop of Trier, Germany | Archbishop |
| 15 Jul | | Born | Giacomo Ranghiasci † | Gubbio | Bishop of San Severino, Italy |
| 21 Jul | 62.3 | Ordained Bishop | Francisco Xavier Aranha † | Titular Bishop of Thermopylae | Bishop of Olinda, Brazil |
| 22 Jul | 52.8 | Installed | Enrique Enríquez † | Cardinal-Priest of S. Eusebio | Cardinal, Official of the Secretariat of State |
| 24 Jul | | Born | Józef Arnulf Giedroyc † | Kossakowszczyzna-Giedrojcie | Bishop of Samogizia o Tels (Zmudz), Lithuania |
| 8 Aug | | Born | Francesco Maria de Luca † | Ponticelli | Archbishop of Lanciano (e Ortona), Italy |
| 21 Aug | | Born | Rafael de La Vara † | Comillas, Spain | Archbishop of Guatemala |
| 26 Aug | | Born | Jean-Baptiste Dubois † | Argentolles | Bishop of Dijon, France |
| 28 Aug | | Born | Sigmund Christoph Graf von Waldburg-Zeil-Trauchburg † | München | Bishop Emeritus of Chiemsee, Germany |
| 2 Sep | | Died | Eustachio Palma † | Bishop of Fossombrone, Italy |
| 16 Sep | 54.3 | Appointed | Isidoro Cossío Bustamente † | Bishop of Valladolid, Spain | Bishop Emeritus |
| 40.2 | Appointed | Pietro Paolo Tosi † | Bishop of Ferentino, Italy |
| 53.3 | Appointed | Johann Philipp Reichsgraf von Waldendorff † | Titular Archbishop of Patrae (Veters) | Archbishop of Trier, Germany |
| 53.3 | Confirmed | Johann Philipp Reichsgraf von Waldendorff † | Coadjutor Archbishop of Trier, Germany | Archbishop |
| 24 Sep | | Born | Luis La Encina Díaz y Pereiro † | Las Palmas, Spain | Bishop of Arequipa, Peru |
| 29 Sep | 24.0 | Ordained Priest | Vicente do Espirito Santo, O.A.D. † | Priest of Agostiniani Scalzi | Prelate of Goiás, Brazil |
| 4 Oct | | Born | Franciszek Skarbek von Malczewski † | Panienka | Archbishop of Warszawa {Warsaw}, Poland |
| 7 Oct | | Died | Silvestro Lodovico Paparelli † | Bishop of Cagli, Italy |
| 14 Oct | 57.6 | Died | José Gómez † | Bishop of Zamora, Spain |
| 20 Oct | 58.3 | Ordained Bishop | Buenaventura Blanco y Elguero (Helguero) † | Bishop of Antequera, Oaxaca, México |
| 23.2 | Ordained Priest | José Joaquim Justiniano Mascarenhas Castello Branco † | Priest | Bishop of São Sebastião do Rio de Janeiro, Brazil |
| 21 Oct | | Born | Istvan Fischer de Nagy † | Bacsko | Archbishop of Eger, Hungary |
| 22 Oct | | Born | Jean-François-Marie Le Pappe de Trévern † | Morlaix | Bishop of Strasbourg, France |
| 27 Oct | 71.8 | Died | Giuseppe Suares de la Concha † | Bishop of San Miniato, Italy |
| 4 Nov | 58.3 | Installed | Buenaventura Blanco y Elguero (Helguero) † | Bishop of Antequera, Oaxaca, México |
| 12 Nov | 58.7 | Died | Joseph Benedikt Graf von Rost † | Bishop of Chur, Switzerland |
| 20 Nov | | Born | Narciso Coll y Prat † | Cornellá de Torri, Spain | Bishop of Palencia, Spain |
| Born | Gregor Tarkovic (Tarkovits) † | Pasika, Ukraine | Bishop of Prešov (Prjašev) (Byzantine), Slovakia |
| 25 Nov | 64.0 | Died | Karl Philipp Reichsfreiherr von Greifenclau zu Vollraths † | Bishop of Würzburg, Germany |
| 30 Nov | 54.5 | Ordained Bishop | Isidoro Cossío Bustamente † | Bishop of Valladolid, Spain | Bishop Emeritus |
| Dec | 23.5 | Ordained Priest | Giuseppe Guzzetta † | Priest | Titular Bishop of Lampsacus |
| 2 Dec | | Born | Giuseppe Mancusi † | Gifone | Bishop of Acerno, Italy |
| 16 Dec | 51.1 | Confirmed | Jacques-Marie de Caritat de Condorcet † | Bishop of Auxerre, France | Bishop of Lisieux, France |
| 52.0 | Confirmed | Charles-Marie de Quélen † | Bishop of Bethléem, France |
| 55.6 | Appointed | Asensio Sales † | Bishop of Barcelona, Spain |
| 18 Dec | 27.4 | Resigned | Luis Antonio Jaime de Borbón y Farnesio † | Cardinal-Deacon of S. Maria della Scala | Cardinal, |
| 58.9 | Elevated to Cardinal | Luis Fernández de Córdoba † | Cardinal, Archbishop of Toledo, Spain |
| 22 Dec | | Born | João de Magalhães Avelar † | Lamego | Bishop of Porto, Portugal |
| 27 Dec | 31.6 | Ordained Priest | Franz de Paula Xaver Ludwig Jakob Fürst von Breuner † | Priest of Salzburg, Austria | Bishop of Chiemsee, Germany |