| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Ordained Bishop | Macarios de Baniyas † | Bishop of Baalbek (Melkite Greek), Lebanon |
| Died | Eustace Brown † | Bishop of Killaloe, Ireland |
| 80.0 | Died | Francisco Cisneros y Mendoza † | Auxiliary Bishop of Lima, Peru |
| 69.0 | Died | Valentinus Constantinus Czulski † | Auxiliary Bishop of Chełm, Poland |
| 44.6 | Appointed | Leopold Anton Eleutherius von Firmian † | Bishop of Seckau, Austria | Archbishop of Salzburg, Austria |
| Ordained Bishop | Ignace Halabi † | Bishop of Homs (Melkite Greek), Syria |
| Born | Franciszek Kobielski † | Gnesnen | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| 17.9 | Professed | Giorgio Maria Lascaris, C.R. † | Member of Congregation of Clerics Regular | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| 59.0 | Ordained Bishop | Juan de Las Peñas † | Titular Bishop of Calydon | Auxiliary Bishop of Cuenca, Spain |
| Died | Michael Piechowski † | Auxiliary Bishop of Przemyśl, Poland |
| Born | Mateo Joaquin Rubio de Arevalo † | Quito | Bishop of Cebu, Philippines |
| Born | Vencentius de Via † | Chien | Bishop of Tinos, Greece |
| Jan | 74.8 | Died | Isidoro Masones y Nin † | Bishop of Ales e Terralba, Italy |
| 68.7 | Died | Gian Andrea Moscarelli † | Bishop of Guardialfiera (Guardia), Italy |
| 71.8 | Died | Giovanni Lorenzo Tilli † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 1 Jan | 42.9 | Ordained Priest | Antonio Saverio Gentili † | Priest | Cardinal, Prefect of the Congregation of the Council |
| 6 Jan | | Born | François-Fiacre de Grave † | Bordeaux | Bishop of Valence, France |
| 12 Jan | 36.3 | Confirmed | Charles-Louis de Froullay de Tessé † | Bishop of Le Mans, France |
| 55.0 | Confirmed | Michel-Celse-Roger de Rabutin de Bussy † | Bishop of Luçon, France |
| 18 Jan | | Born | Anne-François-Victor Le Tonnelier de Breteuil † | Paris | Bishop of Montauban, France |
| 20 Jan | 31.8 | Professed | Luiz de Santa Teresa da Cruz Salgado de Castilho, O.C.D. † | Member of Order of Discalced Carmelites | Bishop of Olinda, Brazil |
| 22 Jan | | Died | Edmund Byrne † | Archbishop of Dublin, Ireland |
| 51.2 | Ordained Bishop | Ferdinand Oesterhoff, O. Cist. † | Titular Bishop of Agathonice | Auxiliary Bishop Emeritus of Münster, Germany |
| 29 Jan | | Born | Juan Alvarez Castro † | Mohedas de la Jara | Bishop of Coria, Spain |
| Born | Joseph-François d’Andigné de la Chasse † | Rennes | Bishop Emeritus of Chalons-sur-Saône, France |
| 63.8 | Appointed | Filippo Antonio Gualterio † | Cardinal-Priest of Santa Cecilia | Cardinal, Bishop Emeritus of Todi, Italy |
| 31 Jan | | Born | Giuseppe Bernardino Pecci, O.S.B. † | Siena | Bishop of Montalcino, Italy |
| Feb | 49.6 | Died | Luigi Maria de Dura, O.P. † | Bishop of Castellaneta, Italy |
| Born | Ignatius Krzyzanowski † | Opatovien | Auxiliary Bishop of Przemyśl, Poland |
| 1 Feb | | Born | Manuel Tavares Coutinho da Silva † | Couto de Esteves | Bishop of Portalegre, Portugal |
| 2 Feb | 44.4 | Ordained Priest | Franz Konrad von Stadion und Thannhausen † | Priest | Bishop of Bamberg, Germany |
| 5 Feb | 23.5 | Selected | Clemens August Maria von Bayern † | Bishop of Hildesheim, Germany | Archbishop of Köln {Cologne}, Germany |
| 7 Feb | 61.4 | Selected | Georges Louis de Berghes † | Bishop of Liège, Belgium |
| 13 Feb | 28.2 | Ordained Bishop | Andrzej Stanisław Załuski † | Bishop of Płock, Poland | Bishop of Kraków, Poland |
| 14 Feb | 39.1 | Confirmed | Joseph-François Bocaud (Boucaud) † | Bishop of Alet, France |
| 49.0 | Appointed | Domenico Antonio Cirillo † | Bishop of Teano, Italy |
| 54.1 | Confirmed | Louis de La Vergne-Montenard de Tressan † | Archbishop of Rouen, France |
| 51.0 | Appointed | Tommaso Marino, O.P. † | Bishop of Siracusa, Italy |
| 40.1 | Appointed | Pedro Morcillo Rubio de Suñón † | Auxiliary Bishop of Lima, Peru | Bishop of Cuzco, Peru |
| 40.1 | Appointed | Pedro Morcillo Rubio de Suñón † | Titular Bishop of Draso | Bishop of Cuzco, Peru |
| 49.1 | Appointed | Agostino Odoardi, O.S.B. † | Bishop of Capaccio, Italy |
| 48.8 | Appointed | Giulio Antonio Sacchi † | Bishop of Monopoli, Italy |
| 43.7 | Selected | Krzysztof Andrzej Jan Szembek † | Bishop of Warmia (Ermland), Poland |
| 20 Feb | 45.1 | Selected | Joseph Oswald von Attems † | Bishop of Lavant, Slovenia |
| 51.0 | Ordained Bishop | Tommaso Marino, O.P. † | Bishop of Siracusa, Italy |
| 55.1 | Ordained Bishop | Michel-Celse-Roger de Rabutin de Bussy † | Bishop of Luçon, France |
| 24 Feb | 45.1 | Confirmed | Joseph Oswald von Attems † | Bishop of Lavant, Slovenia |
| Born | Philippe Damien de Hoensbroeck † | Roermond | Bishop of Roermond, Netherlands |
| 25 Feb | 36.4 | Ordained Bishop | Charles-Louis de Froullay de Tessé † | Bishop of Le Mans, France |
| 24.0 | Ordained Priest | Angelo Longo, O.S.B. † | Priest of Order of Saint Benedict | Bishop of Teano, Italy |
| 49.2 | Ordained Bishop | Agostino Odoardi, O.S.B. † | Bishop of Capaccio, Italy |
| 27 Feb | 43.9 | Ordained Bishop | Nicolas-Joseph de Paris † | Titular Bishop of Europus | Bishop of Orléans, France |
| 2 Mar | | Born | Manuel do Cenáculo Vilas Boas, T.O.R. † | Lisboa | Archbishop of Évora, Portugal |
| 3 Mar | | Born | Felipe Antonio Solano Marín † | Castelfrío | Bishop of Cuenca, Spain |
| 5 Mar | | Ordained Bishop | Antoine-François de Bliterswyck de Montcley † | Bishop of Autun, France | Archbishop of Besançon, France |
| 6 Mar | 67.2 | Died | Benedetto Falconcini † | Bishop of Arezzo, Italy |
| 7 Mar | 68.8 | Died | Michelangelo dei Conti † | Pope (Roma {Rome}, Italy) |
| 56.8 | Resigned | Giorgio Spínola † | Secretary of the Secretariat of State | Cardinal, Cardinal-Bishop of Palestrina |
| 12 Mar | 64.2 | Died | François-Louis de Clermont-Tonnerre † | Bishop of Langres, France |
| 13 Mar | | Born | Luis Velasco, O.F.M. † | Madrid, Spain | Bishop of Paraguay |
| 20 Mar | | Born | Agustín Benito Torres, O. Carm. † | Valladolid | Bishop of Albarracin, Spain |
| Born | Silvestro Pepe † | Napoli | Archbishop of Sorrento, Italy |
| 23 Mar | | Born | Buenaventura Córdoba Espinosa de la Cerda † | Madrid, Spain | Cardinal, Patriarch of West Indies, Spain |
| 25 Mar | 32.0 | Ordained Priest | Luiz de Santa Teresa da Cruz Salgado de Castilho, O.C.D. † | Priest of Order of Discalced Carmelites | Bishop of Olinda, Brazil |
| 29 Mar | 66.2 | Installed | Francisco de la Cuesta, O.S.H. † | Bishop of Michoacán, México |
| 32.2 | Selected | Pierre de Pardaillan de Gondrin d’Autin † | Bishop of Langres, France |
| Apr | | Born | Marc-Antoine de Noé † | Sainte-Soulle | Bishop of Troyes, France |
| 77.0 | Died | Antonio Polcenigo † | Bishop of Feltre, Italy |
| 1 Apr | 28.3 | Ordained Priest | Alessandro Cervini † | Priest | Archbishop of Siena, Italy |
| 25.5 | Ordained Priest | Emmanuel-Henri-Timoléon de Cossé-Brissac † | Priest | Bishop of Condom, France |
| 24.3 | Ordained Priest | Pellegrino Ferri † | Priest | Bishop of Adria, Italy |
| 25.3 | Ordained Priest | Liborio Pisani † | Priest | Bishop of Massa Lubrense, Italy |
| 12 Apr | 80.1 | Died | Pierre de Langle † | Bishop of Boulogne (-Sur-Mer), France |
| 15 Apr | 23.3 | Ordained Priest | Bonaventura Bernardi † | Priest | Bishop of Ossero (Osor), Croatia |
| 28.9 | Ordained Priest | Salvator Angelo Cadello † | Priest | Bishop of Ampurias e Civita, Italy |
| 23.5 | Ordained Priest | Ferenc Zichy † | Priest | Bishop of Győr (Raab), Hungary |
| 17 Apr | 30.2 | Ordained Priest | Giuseppe Spinelli † | Priest | Cardinal, Cardinal-Bishop of Ostia |
| 23 Apr | 45.3 | Ordained Bishop | Joseph Oswald von Attems † | Bishop of Lavant, Slovenia |
| 25 Apr | | Born | Carlo Rezzonico (Jr.) † | Venice | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 26 Apr | 58.3 | Died | Louis-François-Gabriel de Hennin-Liétard † | Archbishop of Embrun, France |
| May | 49.2 | Died | Imperialis Pedicini † | Bishop of Vulturara e Montecorvino, Italy |
| 5 May | 74.1 | Died | Sebastiano Antonio Tanara † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 6 May | 63.3 | Selected | Jean-Marie Henriau † | Bishop of Boulogne (-Sur-Mer), France |
| 12 May | 78.4 | Died | Juan Pérez Carpintero, O. Praem. † | Bishop of Comayagua, Honduras |
| 14 May | 60.4 | Died | Juan de Necolalde † | Archbishop of La Plata o Charcas, Bolivia |
| 18 May | 18.5 | Professed | Lorenzo (Giovanni Vincenzo Antonio) Ganganelli, O.F.M. Conv. † | Member of Order of Friars Minor Conventual | Pope (Roma {Rome}, Italy) |
| 21 May | 38.0 | Installed | Karl Joseph von Kuenburg † | Bishop of Chiemsee, Germany |
| 29 May | 75.3 | Elected | Pietro Francesco (Vincenzo Maria) Orsini de Gravina, O.P. † | Pope (Roma {Rome}, Italy) |
| 30 May | 66.4 | Died | Francisco de la Cuesta, O.S.H. † | Bishop of Michoacán, México |
| 4 Jun | 75.3 | Installed | Pietro Francesco (Vincenzo Maria) Orsini de Gravina, O.P. † | Pope (Roma {Rome}, Italy) |
| 6 Jun | 73.2 | Appointed | Fabrizio Paolucci † | Cardinal, Secretary of the Secretariat of State |
| 9 Jun | 39.0 | Resigned | Gabriel-Florent de Choiseul-Beaupré † | Bishop of Saint-Papoul, France | Bishop of Mende, France |
| 10 Jun | 23.5 | Ordained Priest | Domenico Bozzoni † | Priest | Bishop of Gerace, Italy |
| 25.3 | Ordained Priest | Stefano dell’Oglio † | Priest | Bishop of Kotor (Cattaro), Montenegro |
| 11 Jun | 39.4 | Ordained Bishop | Joseph-François Bocaud (Boucaud) † | Bishop of Alet, France |
| Born | Juan Antonio de los Tueros † | Trucíos | Archbishop of Burgos, Spain |
| 12 Jun | 58.7 | Appointed | Francesco Acquaviva d’Aragona † | Cardinal, Cardinal-Bishop of Sabina |
| 60.0 | Installed | Giulio Alberoni † | Cardinal-Deacon of Sant’Adriano al Foro | Cardinal, Bishop Emeritus of Málaga, Spain |
| 50.9 | Appointed | Giovanni Battista Altieri (Jr.) † | Titular Archbishop of Tyrus | Cardinal, Cardinal-Bishop of Palestrina |
| 52.8 | Appointed | Marco Antonio Ansidei † | Titular Archbishop of Tamiathis | Cardinal, Bishop of Perugia, Italy |
| 46.6 | Appointed | Pietro Abbondio Battiloro † | Bishop of Guardialfiera (Guardia), Italy | Bishop of Alife, Italy |
| 72.1 | Appointed | Giacomo Boncompagni † | Cardinal-Bishop of Albano | Cardinal, Archbishop of Bologna, Italy |
| 49.7 | Appointed | Antonino Serafino Camarda, O.P. † | Bishop of Rieti, Italy |
| 40.6 | Appointed | Franz Kaspar von Franken-Siersdorf † | Auxiliary Bishop of Köln {Cologne}, Germany |
| 40.6 | Appointed | Franz Kaspar von Franken-Siersdorf † | Titular Bishop of Rhodiapolis | Auxiliary Bishop of Köln {Cologne}, Germany |
| 76.5 | Appointed | Francesco del Giudice † | Cardinal-Bishop of Ostia (e Velletri) | Cardinal, Archbishop Emeritus of Monreale, Italy |
| 43.8 | Appointed | Pierre-Guérin de Tencin † | Archbishop of Embrun, France | Cardinal, Archbishop of Lyon, France |
| 33.5 | Confirmed | Etienne-Joseph de La Fare † | Bishop of Laon, France |
| 49.2 | Appointed | Prospero Lorenzo Lambertini † | Titular Archbishop of Teodosia | Pope (Roma {Rome}, Italy) |
| 48.6 | Appointed | Nicolò Maria Lercari † | Titular Archbishop of Nazianzus | Cardinal, Secretary Emeritus of the Secretariat of State |
| 73.2 | Appointed | Fabrizio Paolucci † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Secretary of the Secretariat of State |
| 72.3 | Appointed | Francesco Pignatelli (Sr.), C.R. † | Cardinal-Bishop of Frascati | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 47.9 | Appointed | Pietro Agostino Scorza (Scortia) † | Bishop of Teramo, Italy | Archbishop Emeritus of Amalfi, Italy |
| 38.0 | Appointed | Franciscus Szembek † | Auxiliary Bishop of Przemyśl, Poland |
| 38.0 | Appointed | Franciscus Szembek † | Titular Bishop of Mactaris | Auxiliary Bishop of Przemyśl, Poland |
| 54.5 | Appointed | Zozuno Valignari † | Titular Archbishop of Thessalonica |
| 41.2 | Confirmed | Louis-François-Renaud de Villeneuve † | Bishop of Viviers (Aps), France | Bishop of Montpellier, France |
| 46.3 | Confirmed | Augustyn Wessel, O. Cist. † | Bishop of Inflanty (Livonia)-Pilten, Poland | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine |
| 14 Jun | | Selected | Joannes Antallfi † | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
| 15.5 | Professed | Thomas Burke (de Burgo), O.P. † | Member of Order of Friars Preachers | Bishop of Ossory, Ireland |
| 18 Jun | 48.6 | Ordained Bishop | Nicolò Maria Lercari † | Titular Archbishop of Nazianzus | Cardinal, Secretary Emeritus of the Secretariat of State |
| 19 Jun | 49.7 | Ordained Bishop | Antonino Serafino Camarda, O.P. † | Bishop of Rieti, Italy |
| Born | Carlo Giuseppe Filippa della Martiniana † | Turin | Cardinal, Bishop of Vercelli, Italy |
| 20 Jun | | Born | Andrea Antonio Silverio Minucci † | Saravalle | Archbishop of Fermo, Italy |
| 21 Jun | 62.5 | Died | José Xirón de Alvarado, O.P. † | Bishop of Nicaragua |
| 24 Jun | 48.0 | Ordained Bishop | Pietro Agostino Scorza (Scortia) † | Bishop of Teramo, Italy | Archbishop Emeritus of Amalfi, Italy |
| 26 Jun | 45.8 | Appointed | Nicola Michele Abati (Abbate) † | Bishop of Carinola (Calina), Italy | Bishop of Squillace, Italy |
| 60.3 | Appointed | Lucas Conejero de Molina † | Archbishop of Burgos, Spain |
| 43.5 | Appointed | Niccolò Paolo Andrea Coscia † | Titular Archbishop of Traianopolis in Rhodope | Cardinal, Archbishop Emeritus of Benevento, Italy |
| 44.9 | Confirmed | Lucas Sartorius Delmestri von Schönberg † | Bishop of Trieste, Italy |
| 45.7 | Appointed | Jacopo Maria Erizzo, O.P. † | Bishop of Concordia (Sagittaria), Italy |
| 33.9 | Appointed | Mondilio Orsini, C.O. † | Titular Archbishop of Corinthus | Archbishop Emeritus of Capua, Italy |
| 57.0 | Appointed | Pietro Ottoboni † | Cardinal-Priest of San Lorenzo in Damaso | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 31.5 | Appointed | Camillo Paolucci (Merlini) † | Titular Archbishop of Iconium | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 54.4 | Appointed | Domenico Rossi † | Bishop of Vulturara e Montecorvino, Italy |
| 28.5 | Confirmed | Jean-Charles de Ségur † | Bishop of Saint-Papoul, France | Bishop Emeritus |
| 33.6 | Appointed | Pietro Maria Suárez † | Bishop of Feltre, Italy | Bishop of Adria, Italy |
| 28 Jun | | Born | Johann Adam Behr † | Forchheim | Auxiliary Bishop of Bamberg, Germany |
| 64.5 | Died | Orazio Filippo Spada † | Cardinal, Bishop of Osimo, Italy |
| 30 Jun | 50.9 | Ordained Deacon | Giovanni Battista Altieri (Jr.) † | Deacon | Cardinal, Cardinal-Bishop of Palestrina |