| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 46.0 | Died | Carlo Francesco Airoldi † | Titular Archbishop of Edessa in Osrhoëne |
| Born | Georgius Casimirus Ancuta † | Vilnius | Auxiliary Bishop of Vilnius, Lithuania |
| Born | Siméon VII Awad † | Hasroun, Lebanon | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| 11.1 | Selected | Joseph Clemens von Bayern von Wittelsbach † | Coadjutor Bishop of Regensburg, Germany | Archbishop of Köln {Cologne}, Germany |
| Born | Jean-Mathias de Barthélemy de Gramont de Lanta † | Tolosan | Bishop of Perpignan-Elne, France |
| 76.0 | Died | Andrea Bogdani (Bogadano) † | Archbishop Emeritus of Skopje, Macedonia |
| 50.0 | Resigned | Fernando Correia de Lacerda † | Bishop of Porto, Portugal | Bishop Emeritus |
| Born | Jean-Baptiste de Champflour † | Clermont | Bishop of Mirepoix, France |
| Born | Giuseppe Suares de la Concha † | | Bishop of San Miniato, Italy |
| 49.8 | Resigned | Carlo Galgano † | Bishop of Belcastro, Italy | Bishop Emeritus |
| Born | Léonor III de Goyon de Matignon † | Torigni-sur-Vire | Bishop of Coutances, France |
| Born | Samuel Ozga † | Leopolien | Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| Appointed | Raffaele Parrillo † | Bishop of Montepeloso, Italy |
| 62.0 | Died | Stefano Ricciardi † | Bishop of Nepi e Sutri, Italy |
| 40.0 | Ordained Bishop | Eftimios Saifi † | Archbishop of Tyr (Melkite Greek), Lebanon |
| 45.0 | Resigned | Bl. Niels Stensen † | Auxiliary Bishop of Münster, Germany | Vicar Apostolic of Nordic Missions, Germany |
| 58.6 | Resigned | Marcantonio Vicentini † | Bishop of Foligno, Italy | Bishop Emeritus |
| 11 Jan | 41.0 | Appointed | Giovanni Caprioli † | Bishop of Castro di Puglia, Italy |
| 61.0 | Appointed | Valerio de São Raimundo, O.P. † | Bishop of Elvas, Portugal |
| 51.0 | Appointed | Ignazio Della Zerda, O.S.A. † | Bishop of L’Aquila, Italy |
| 51.0 | Appointed | Diego Ventura Fernández de Angulo, O.F.M. † | Archbishop (Personal Title) of Avila, Spain | Bishop |
| 53.1 | Confirmed | Wilhelm Egon von Fürstenberg † | Cardinal, Bishop of Strasbourg, France |
| 57.0 | Appointed | Bernardo Mateo Sánchez de Castellar † | Bishop of Tarazona, Spain |
| 68.0 | Appointed | Benito Ignacio Salazar Goiri, O.S.B. † | Bishop of Barcelona, Spain |
| 31.2 | Ordained Priest | Seweryn Szczuka † | Priest of Chelmno (Culma, Kulm), Poland | Auxiliary Bishop |
| 45.0 | Confirmed | Jerónimo Zolivera † | Bishop of Teruel, Spain |
| 13 Jan | | Born | Louis-François-Gabriel d’Orléans de La Motte † | Carpentras | Bishop of Amiens, France |
| 19 Jan | 54.0 | Died | Álvaro de São Boaventura, O.F.M. † | Bishop of Coimbra, Portugal |
| 21 Jan | | Born | Sebastián José Victoria Emparán y Loyola, O.S.H. † | Azpeitia | Bishop of Urgell, Spain |
| 26 Jan | | Died | Placide-Louis du Chemin, O.S.B. † | Bishop of Baghdad, Iraq |
| 31 Jan | 74.4 | Died | Cesare Facchinetti † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| Feb | 52.1 | Died | Francesco de Mandietta (Mendieta), O.SS.T. † | Bishop of Castellammare di Stabia, Italy |
| 2 Feb | | Born | Fortunato Tamburini, O.S.B. † | Modena, Italy | Cardinal, Cardinal-Priest of San Callisto |
| 3 Feb | | Born | Francisco Antonio Bustamante Jiménez † | Logroño | Bishop of Plasencia, Spain |
| 5 Feb | 69.1 | Died | Giovanni Battista de Luca † | Cardinal, Cardinal-Priest of San Girolamo dei Croati |
| 73.1 | Ordained Bishop | Johannes Maximus Stainer von Pleinfelden † | Titular Bishop of Selymbria | Auxiliary Bishop of Passau, Germany |
| 10 Feb | 67.2 | Died | Pedro Roche Noguera, O.F.M. † | Bishop of Pamplona, Spain |
| 11 Feb | 72.1 | Died | Ludwig Wilhelm Benz † | Auxiliary Bishop of Eichstätt, Germany |
| 15 Feb | 74.4 | Appointed | Niccolò Albergati-Ludovisi † | Cardinal-Bishop of Ostia (e Velletri) | Cardinal, Archbishop Emeritus of Bologna, Italy |
| 59.8 | Appointed | Decio Azzolini (Jr.) † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Secretary Emeritus of the Secretariat of State |
| 46.1 | Confirmed | Diego de Baños y Sotomayor † | Bishop of Caracas, Santiago de Venezuela |
| 69.6 | Appointed | Alderano Cibo † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Bishop Emeritus of Jesi, Italy |
| 46.1 | Appointed | Giovanni Battista Giberti † | Bishop of Cava (de’ Tirreni), Italy | Bishop of Fano, Italy |
| 50.0 | Appointed | Giacomo Antonio Morigia, B. † | Archbishop of Firenze {Florence}, Italy | Cardinal, Bishop of Pavia, Italy |
| 61.1 | Confirmed | Andrés de las Navas y Quevedo, O. de M. † | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| 72.8 | Appointed | Pietro Vito Ottoboni † | Cardinal-Bishop of Frascati | Pope (Roma {Rome}, Italy) |
| 60.9 | Appointed | Carlo Pio di Savoia † | Cardinal, Cardinal-Bishop of Sabina |
| Appointed | Vladislaus Silnicki † | Auxiliary Bishop of Vilnius, Lithuania |
| Appointed | Vladislaus Silnicki † | Titular Bishop of Thermopylae | Auxiliary Bishop of Vilnius, Lithuania |
| 51.1 | Appointed | Alfonso Santacruz † | Auxiliary Bishop of Toledo, Spain |
| 51.1 | Appointed | Alfonso Santacruz † | Titular Bishop of Methone | Auxiliary Bishop of Toledo, Spain |
| 21 Feb | 46.1 | Ordained Bishop | Giovanni Battista Giberti † | Bishop of Cava (de’ Tirreni), Italy | Bishop of Fano, Italy |
| 22 Feb | 24.3 | Ordained Priest | Adeodato Summantico, O.S.A. † | Priest of Order of St. Augustine | Bishop of San Severo, Italy |
| 26 Feb | 65.7 | Died | Lorenzo Mayers Caramuel, O. de M. † | Bishop of Gaeta, Italy |
| 28 Feb | 63.2 | Died | Joseph von Rabatta † | Bishop of Ljubljana, Slovenia |
| 7 Mar | | Born | Tomás Montaño y Aarón † | Mexico | Bishop of Antequera, Oaxaca, México |
| 8 Mar | 48.2 | Confirmed | Francisco Antonio Caballero † | Bishop of Segovia, Spain |
| 61.2 | Confirmed | Juan de Rojas y Asúa, O. de M. † | Bishop of Nicaragua |
| 53.2 | Confirmed | Miguel Lorenzo de Frías y Espinel † | Bishop of Jaca, Spain |
| 55.2 | Appointed | Miguel Jeronimo Fuenbuena, O.P. † | Bishop of Albarracin, Spain |
| 55.2 | Appointed | João dos Prazeres, O.F.M. † | Bishop of Angra, Portugal |
| 13 Mar | 24.0 | Ordained Priest | Carlo Pignatelli, C.R. † | Priest of Congregation of Clerics Regular | Bishop of Gaeta, Italy |
| 23.7 | Ordained Priest | Antonio San Felice † | Priest | Bishop of Nardò, Italy |
| 18 Mar | 78.2 | Died | Giovanni Granafei † | Archbishop of Bari (-Canosa), Italy |
| 21 Mar | 69.2 | Died | Stefano Agostini † | Cardinal, Cardinal-Priest of San Giovanni a Porta Latina |
| 55.5 | Ordained Bishop | Humbertus Guilielmus de Precipiano † | Bishop of Brugge {Bruges}, Belgium | Archbishop of Mechelen, Belgium |
| 68.2 | Ordained Bishop | Benito Ignacio Salazar Goiri, O.S.B. † | Bishop of Barcelona, Spain |
| 24 Mar | 61.2 | Installed | Andrés de las Navas y Quevedo, O. de M. † | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| 34.4 | Appointed | Michele Carlo Visdomini Cortigiani † | Bishop of San Miniato, Italy | Bishop of Pistoia e Prato, Italy |
| 25 Mar | 65.5 | Died | Michelangelo Brancavalerio † | Bishop of Alatri, Italy |
| 28.4 | Ordained Priest | José de Sousa Castelo Branco † | Priest | Bishop Emeritus of Funchal, Portugal |
| 29 Mar | 43.2 | Appointed | Urbano Sacchetti † | Bishop of Viterbo e Tuscania, Italy | Cardinal, Bishop Emeritus |
| Apr | 53.3 | Ordained Priest | Wilhelm Egon von Fürstenberg † | Priest of Strasbourg, France | Cardinal, Bishop |
| 87.3 | Died | Paolo Pellegrini † | Bishop of Capri, Italy |
| 1 Apr | | Died | Ondrej Sebestyén † | Official of Spiš, Slovakia |
| 2 Apr | | Born | Louis-François-Renaud de Villeneuve † | Aix | Bishop of Montpellier, France |
| 3 Apr | 23.2 | Ordained Priest | Michele Maria Dentice † | Priest | Bishop of Mottola (Motula), Italy |
| 49.8 | Ordained Priest | Bernardinus Marchese † | Priest | Bishop of Sarsina, Italy |
| 23.3 | Ordained Priest | Simeone Viglini (Veglini) † | Priest | Bishop of Tricarico, Italy |
| 4 Apr | 65.3 | Ordained Bishop | Domingo Fernández Navarrete, O.P. † | Archbishop of Santo Domingo, Dominican Republic |
| Born | Matteo (Marcello) Sacco † | Mottae S. Luciae | Bishop of San Marco (Argentano), Italy |
| 7 Apr | 33.0 | Selected | Ferdinando de Rojas (Roxas) † | Bishop of Vigevano, Italy |
| 10 Apr | 61.3 | Ordained Bishop | Juan de Rojas y Asúa, O. de M. † | Bishop of Nicaragua |
| 13 Apr | | Appointed | José Jiménez de Samaniego, O.F.M. † | Bishop of Plasencia, Spain |
| 14 Apr | | Born | Georg Xaver Marotti † | Rijeka | Bishop of Pedena, Austria |
| 17 Apr | 24.3 | Ordained Priest | Domenico Antonio Menafra † | Priest | Bishop of Acerno, Italy |
| 21 Apr | 39.2 | Selected | Sigmund Christoph von Herberstein † | Bishop of Ljubljana, Slovenia | Bishop Emeritus |
| 24 Apr | 63.8 | Died | Peter Philipp von Dernbach † | Bishop of Bamberg, Germany |
| Born | Angelo Maria Volanti, O.P. † | Ragusin | Bishop of Stagno (Ston), Croatia |
| 26 Apr | | Appointed | François Picquet † | Bishop of Baghdad, Iraq |
| Born | Antonio Alejandro Sarmiento Sotomayor, O.S.B. † | Parroquia de San Jorge de Riva de Vea | Bishop of Mondoñedo, Spain |
| 1 May | 53.4 | Ordained Bishop | Wilhelm Egon von Fürstenberg † | Cardinal, Bishop of Strasbourg, France |
| Born | Diego Felipe Perea Magdaleno † | Orgaz | Archbishop of Burgos, Spain |
| 2 May | 43.3 | Ordained Bishop | Urbano Sacchetti † | Bishop of Viterbo e Tuscania, Italy | Cardinal, Bishop Emeritus |
| 10 May | 61.4 | Ordained Bishop | Valerio de São Raimundo, O.P. † | Bishop of Elvas, Portugal |
| 48.4 | Appointed | Baltasar de Figueroa, O. Cist. † | Bishop of Santiago de Cuba |
| 13 May | | Born | Juan de Galabis, O. Praem. † | Robledillo de Gata, Spain | Archbishop of Santafé en Nueva Granada, Colombia |
| 48.5 | Died | Giannotto Gualterio † | Archbishop of Fermo, Italy |
| 16 May | 55.4 | Ordained Bishop | João dos Prazeres, O.F.M. † | Bishop of Angra, Portugal |
| 22 May | 40.4 | Selected | Juan Francisco de Padilla y San Martín, O. de M. † | Bishop of Puerto Rico (Porto Rico) | Bishop of Santa Cruz de la Sierra, Bolivia |
| 24 May | 39.8 | Appointed | Giuseppe Ottavio Attavanti † | Bishop of Arezzo, Italy |
| 41.4 | Appointed | Giuseppe Felice Barlacci † | Bishop of Narni, Italy | Bishop Emeritus |
| 45.4 | Confirmed | Diego de La Cueva y Aldana † | Bishop of Valladolid, Spain |
| 49.9 | Appointed | Bernardinus Marchese † | Bishop of Sarsina, Italy |
| 25 May | 70.4 | Died | Giovanni Gambacorta, C.R. † | Bishop of Marsico Nuovo, Italy |
| 26 May | | Born | Agostino Rivarola † | Ianuen | Bishop of Albenga, Italy |
| 29 May | | Died | Giovanni de Andreis † | Bishop of Trogir (Traù), Croatia |
| 30 May | 39.8 | Ordained Bishop | Giuseppe Ottavio Attavanti † | Bishop of Arezzo, Italy |
| 41.4 | Ordained Bishop | Giuseppe Felice Barlacci † | Bishop of Narni, Italy | Bishop Emeritus |
| 49.9 | Ordained Bishop | Bernardinus Marchese † | Bishop of Sarsina, Italy |
| 34.6 | Ordained Bishop | Michele Carlo Visdomini Cortigiani † | Bishop of San Miniato, Italy | Bishop of Pistoia e Prato, Italy |
| 31 May | 44.8 | Appointed | Konrad Wilhelm von Werdenau † | Bishop of Würzburg, Germany | Bishop-Elect |
| 6 Jun | 53.4 | Ordained Bishop | Miguel Lorenzo de Frías y Espinel † | Bishop of Jaca, Spain |
| 10 Jun | 39.1 | Selected | Marquard Sebastian von Schenk von Stauffenberg † | Bishop of Bamberg, Germany |
| 12 Jun | 24.1 | Ordained Priest | Giuseppe Grisconi, Sch. P. † | Priest of Order of the Pious Schools | Bishop of Vieste, Italy |
| 13 Jun | | Died | Girolamo Orsaja, O.M. † | Archbishop of Rossano, Italy |
| 14 Jun | 40.5 | Appointed | Agostino Fieschi, C.R. † | Bishop of Accia and Mariana, France |
| 50.5 | Appointed | Stefano Ghirardelli † | Bishop of Alatri, Italy |
| 40.5 | Appointed | Giambattista Quaranta † | Bishop of Larino, Italy |
| 20 Jun | 40.5 | Ordained Bishop | Agostino Fieschi, C.R. † | Bishop of Accia and Mariana, France |
| 50.5 | Ordained Bishop | Stefano Ghirardelli † | Bishop of Alatri, Italy |
| 40.5 | Ordained Bishop | Giambattista Quaranta † | Bishop of Larino, Italy |
| 24 Jun | 26.7 | Ordained Priest | Pietro Spínola, O.F.M. † | Priest of Order of Friars Minor | Bishop of Ajaccio, France |
| 26 Jun | 56.7 | Died | Ferdinand von Fürstenberg † | Bishop of Paderborn, Germany |
| 30 Jun | 18.9 | Selected | Franz Ludwig am Rhein zu Neuburg † | Bishop of Wrocław (Breslau), Poland | Archbishop-Elect of Mainz, Germany |