| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Charles-Prudent de Becdelièvre † | Nantes | Bishop of Nîmes, France |
| Born | Paulus Campsi † | Scutaren | Bishop of Shkodrë (Scutari), Albania |
| 34.2 | Ordained Priest | Antonio Carrara † | Priest | Bishop of Fondi (Fundi), Italy |
| 44.2 | Resigned | Gianantonio Davia † | Apostolic Nuncio to Austria | Cardinal, Bishop Emeritus of Rimini, Italy |
| 62.0 | Died | Juan Francisco de Padilla y San Martín, O. de M. † | Bishop of Santa Cruz de la Sierra, Bolivia |
| Died | Mihály Dvornikovich † | Bishop of Vác, Hungary |
| 52.0 | Resigned | Philip Michael Ellis, O.S.B. † | Vicar Apostolic of Western District, England, Great Britain | Bishop of Segni, Italy |
| 5.4 | Ordained Priest | Francesco Agnello Fragianni † | Priest | Bishop of Calvi Risorta, Italy |
| Born | Charles de Grimaldi d’Antibes † | Cagnes | Bishop of Rodez, France |
| Born | Lucretius-Henri-François de La Tour du Pin † | Alais | Bishop of Riez, France |
| 25.0 | Ordained Priest | Bernard MacMahon (McMahon) † | Priest | Archbishop of Armagh, Ireland |
| Born | Juan Pablo de Olmedo † | Corduben | Bishop of Santa Cruz de la Sierra, Bolivia |
| 65.0 | Died | Pedro Portocarrero y Guzmán † | Patriarch of West Indies, Spain |
| 16.0 | Professed | Andreas de Rossi, C.R. † | Member of Congregation of Clerics Regular | Titular Bishop of Patara |
| 44.0 | Ordained Bishop | Emmanuel a Santo Antonio, O.P. † | Bishop of Malacca, Singapore |
| Born | Jean-Antoine de Toucheboeuf de Beaumont des Junies † | Junies | Bishop Emeritus of Rennes, France |
| Born | Antonius Taveira de Neiva Brum † | Horta | Archbishop Emeritus of Goa, India |
| 23.4 | Ordained Priest | Jakob Maximilian von Thun und Hohenstein † | Priest of Salzburg, Austria | Bishop of Gurk, Austria |
| 24.1 | Ordained Priest | Jean de Vaugirault † | Priest | Bishop of Angers, France |
| 18.9 | Professed | Franz Bernardin Verbeck, O.F.M. Conv. † | Member of Order of Friars Minor Conventual | Auxiliary Bishop of Münster, Germany |
| 18.0 | Professed | Lawrence William York, O.S.B. † | Member of Order of Saint Benedict | Vicar Apostolic Emeritus of Western District, England, Great Britain |
| Jan | 57.0 | Ordained Bishop | Juan Bonilla Vargas, O.SS.T. † | Bishop of Almería, Spain | Bishop of Córdoba, Spain |
| 55.0 | Died | Giorgio Emo † | Archbishop of Corfù, Greece |
| 1 Jan | | Born | Manuel Antonio de la Torre † | Antillo de Campos, Spain | Bishop of Buenos Aires, Argentina |
| 3 Jan | | Born | Johann Kaspar von Wolkenstein-Rodeneck † | Trento | Auxiliary Bishop of Trento, Italy |
| 5 Jan | 55.8 | Died | Mikołaj Michał (Nicolaus Geraldus) Wyżycki † | Bishop of Chełm, Poland |
| 7 Jan | 80.0 | Died | Giovanni Battista Spínola † | Archbishop of Genova, Italy |
| 8 Jan | | Born | Bernardin-Louis Foucquet † | Rennes | Archbishop Emeritus of Embrun, France |
| 13 Jan | 85.0 | Died | Pierre du Laurens, O.S.B. † | Bishop of Belley, France |
| 21 Jan | | Died | Victorino do Porto, O.F.M. † | Bishop of Santiago de Cabo Verde |
| 26 Jan | 60.1 | Appointed | Ascanio Blasi † | Bishop of Civita Castellana e Orte, Italy |
| 53.0 | Appointed | Johann Christoph Haus † | Auxiliary Bishop of Basel, Switzerland |
| 53.0 | Appointed | Johann Christoph Haus † | Titular Bishop of Domitiopolis | Auxiliary Bishop of Basel, Switzerland |
| 35.2 | Appointed | Johann Bernhard Mayer † | Auxiliary Bishop of Würzburg, Germany |
| 35.2 | Appointed | Johann Bernhard Mayer † | Titular Bishop of Chrysopolis in Arabia | Auxiliary Bishop of Würzburg, Germany |
| 35.8 | Confirmed | Louis-Daniel-Gabriel de Pestel de Levis de Trubières de Caylus † | Bishop of Auxerre, France |
| 40.1 | Appointed | Luis Francisco Romero † | Bishop of Santiago de Chile | Archbishop of La Plata o Charcas, Bolivia |
| 30.1 | Appointed | Pedro Sanz de la Vega y Landaverde, O. de M. † | Bishop of Cebu, Philippines |
| 46.9 | Confirmed | Johann Franz von Schenk von Stauffenberg † | Bishop of Konstanz {Constance}, Germany |
| 31 Jan | | Died | Bernardo de Vicuña Zuazo † | Bishop of Islas Canarias {Canary Islands}, Spain |
| Feb | 68.1 | Resigned | Édouard Valot † | Bishop of Nevers, France | Bishop Emeritus |
| Born | Walenty Franciszek Wężyk † | Opatow | Bishop of Przemyśl, Poland |
| 1 Feb | 76.3 | Ordained Priest | Niccolò Piccolomini † | Priest | Titular Archbishop of Thessalonica |
| Born | Fabian Franziszek Pląskowski † | Niezywiec | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| 7 Feb | 62.1 | Died | Baltasar de la Peña Avilés † | Bishop of Avila, Spain |
| Born | Michele Scavo † | Palermo | Bishop of Mazara del Vallo, Italy |
| 9 Feb | 42.2 | Appointed | Luis Antonio Belluga y Moncada, C.O. † | Bishop of Cartagena (en España) | Cardinal, Bishop Emeritus |
| 70.1 | Appointed | Juan González Santiago † | Bishop of Cuzco, Peru |
| 58.3 | Selected | Johann Anton von Knebel von Katzenellenbogen † | Bishop of Eichstätt, Germany |
| 50.1 | Confirmed | Antonius Simon de Magny † | Bishop of Oloron (Oloron-Sainte-Marie), France | Bishop-Elect |
| 52.1 | Appointed | Miguel Pérez Lara † | Bishop of Coria, Spain |
| 46.8 | Appointed | Pedro Lázaro y Terrer, O.F.M. † | Bishop of Ugento, Italy |
| 47.7 | Confirmed | Henri-Pons de Thiard de Bissy † | Cardinal, Bishop of Meaux, France |
| 22 Feb | 53.1 | Ordained Bishop | Johann Christoph Haus † | Titular Bishop of Domitiopolis | Auxiliary Bishop of Basel, Switzerland |
| 24 Feb | | Born | Salvatore Andreani, B. † | Milano | Bishop of Lodi, Italy |
| 26 Feb | 50.2 | Died | Antonius Simon de Magny † | Bishop-Elect of Oloron (Oloron-Sainte-Marie), France |
| 27 Feb | | Born | Domenico Giovanni Prosperi † | Camerino | Bishop of San Severino (Marche), Italy |
| Born | Nicola Spedalieri † | Guardavalle | Bishop of Oppido Mamertina, Italy |
| Mar | 53.2 | Resigned | François de Caillebot de La Salle † | Bishop of Tournai {Doornik}, Belgium | Bishop Emeritus |
| 1 Mar | 35.3 | Ordained Bishop | Johann Bernhard Mayer † | Titular Bishop of Chrysopolis in Arabia | Auxiliary Bishop of Würzburg, Germany |
| 35.9 | Ordained Bishop | Louis-Daniel-Gabriel de Pestel de Levis de Trubières de Caylus † | Bishop of Auxerre, France |
| 2 Mar | 51.1 | Appointed | Alessandro Calvi-Organi † | Bishop of San Severino (Marche), Italy |
| Appointed | Angelo Gabriele Gautieri, O.F.M. † | Titular Bishop of Cardicium | Vicar Apostolic of Transilvania, Erdély, Siebenbürgen, Romania |
| 51.5 | Appointed | Raffaele Raggi, B. † | Bishop of Aleria, France |
| 63.6 | Appointed | Venantius Simi, O.S.B. † | Auxiliary Bishop of Sabina, Italy | Auxiliary Bishop Emeritus |
| 63.6 | Appointed | Venantius Simi, O.S.B. † | Titular Archbishop of Salamis | Auxiliary Bishop Emeritus of Sabina, Italy |
| 4 Mar | 65.2 | Died | Armand-Anne-Tristan de La Baume de Suze † | Archbishop of Auch, France |
| 7 Mar | 24.3 | Ordained Priest | Philippus de Amato † | Priest | Bishop of Umbriatico (Umbriaticum), Italy |
| 16 Mar | | Born | Guglelmo Camaldari † | Gallipoli | Archbishop of Rossano, Italy |
| 22 Mar | 53.4 | Ordained Bishop | Seweryn Szczuka † | Titular Bishop of Ioppe | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| 28 Mar | 25.2 | Ordained Priest | Adamus Acsády † | Priest | Bishop of Veszprém, Hungary |
| 24.3 | Ordained Priest | Giuseppe Barone † | Priest | Bishop of Calvi Risorta, Italy |
| 24.5 | Ordained Priest | Jan-Baptist de Castillion † | Priest | Bishop of Brugge {Bruges}, Belgium |
| 24.2 | Ordained Priest | Niccolò Paolo Andrea Coscia † | Priest | Cardinal, Archbishop Emeritus of Benevento, Italy |
| Apr | | Born | Joannes Ernestus von Harrach † | Wien, Austria | Bishop of Nitra, Slovakia |
| 4 Apr | | Born | José de Jesus Maria Cayetano Carvalho, O.P. † | Lisboa | Bishop of Castelo Branco, Portugal |
| 44.9 | Ordained Priest | Hugo František (Franz) von Königsegg-Rothenfels † | Priest of Litoměřice, Czech Republic | Bishop |
| 6 Apr | 85.3 | Died | Odoardo Cibo (Cybo) † | Titular Patriarch of Constantinople |
| 65.3 | Died | Urbano Sacchetti † | Cardinal, Bishop Emeritus of Viterbo e Tuscania, Italy |
| 11 Apr | 57.3 | Selected | Louis-Marcel de Coëtlogon-Méjusseaume † | Bishop of Tournai {Doornik}, Belgium |
| 41.3 | Ordained Priest | Ludovico Anselmo Gualtieri † | Priest | Bishop of Todi, Italy |
| 33.7 | Appointed | François de Madot † | Bishop of Belley, France | Bishop of Chalons-sur-Saône, France |
| 57.3 | Selected | Augustin de Maupeou † | Archbishop of Auch, France |
| 49.8 | Appointed | Honoré Quiqueran de Beaujeu † | Bishop of Castres, France |
| 42.3 | Selected | Joseph de Révol † | Bishop of Oloron (Oloron-Sainte-Marie), France | Bishop Emeritus |
| 17 Apr | 68.0 | Died | Uldericus Nardi † | Bishop of Bagnoregio (Bagnorea), Italy |
| 19 Apr | 42.4 | Ordained Bishop | Luis Antonio Belluga y Moncada, C.O. † | Bishop of Cartagena (en España) | Cardinal, Bishop Emeritus |
| 26.5 | Ordained Priest | Jacopo Maria Erizzo, O.P. † | Priest of Order of Friars Preachers | Bishop of Concordia (Sagittaria), Italy |
| 25 Apr | | Born | Giovanni Molino † | Venice | Cardinal, Bishop of Brescia, Italy |
| 26 Apr | 52.3 | Ordained Bishop | Miguel Pérez Lara † | Bishop of Coria, Spain |
| 47.2 | Ordained Bishop | Johann Franz von Schenk von Stauffenberg † | Bishop of Konstanz {Constance}, Germany |
| 27 Apr | 80.3 | Confirmed | Gabriel de Blauza † | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| 66.0 | Appointed | Leandro Colloredo, C.O. † | Cardinal, Cardinal-Priest of Santa Maria in Trastevere |
| 60.3 | Appointed | Mateo Foncillas Mozárabe † | Bishop of Jaca, Spain |
| 58.5 | Confirmed | Johann Anton von Knebel von Katzenellenbogen † | Bishop of Eichstätt, Germany |
| 61.8 | Appointed | Sebastiano Zucchetti † | Bishop of Cortona, Italy |
| 7 May | 60.3 | Appointed | Ignacio Diez de la Barrera † | Bishop of Durango, México |
| 10 May | 59.4 | Died | Ladislaus Matyasovski † | Bishop of Nitra, Slovakia |
| 15 May | 23.1 | Ordained Priest | Carlo Vincenzo Maria Ferreri Thaon, O.P. † | Priest of Order of Friars Preachers | Cardinal, Bishop of Vercelli, Italy |
| 17 May | 54.1 | Ordained Bishop | Aleksander Mikolaj Horain † | Titular Bishop of Tiberias | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 18 May | 63.0 | Appointed | Lorenzo Maria Fieschi (de Flisco) † | Cardinal, Archbishop of Genova, Italy |
| 40.4 | Appointed | José Antonio Jaspe Montenegro † | Auxiliary Bishop of Santiago de Compostela, Spain |
| 40.4 | Appointed | José Antonio Jaspe Montenegro † | Titular Bishop of Prisriana | Auxiliary Bishop of Santiago de Compostela, Spain |
| 43.7 | Appointed | Francesco Morgioni † | Bishop of Minori, Italy |
| 50.4 | Appointed | Manuel Francisco Navarrete y Ladrón de Guevara † | Archbishop of Burgos, Spain |
| 21 May | 24.6 | Ordained Priest | Felice Sollazzo Castriotta † | Priest | Bishop Emeritus of Bisignano, Italy |
| Jun | | Born | Cesar Crescenzio de Angelis † | Torrice | Bishop of Segni, Italy |
| 74.4 | Died | Vincenzo del Mastro (de Magistris), O.P. † | Bishop of Cassano all’Jonio, Italy |
| Born | Antonio Tripcovich † | Catharen | Bishop of Nona (Nin), Croatia |
| 1 Jun | 24.5 | Ordained Priest | Valério do Sacramento, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop Emeritus of Angra, Portugal |
| 58.6 | Ordained Priest | Johann Anton von Knebel von Katzenellenbogen † | Priest of Eichstätt, Germany | Bishop |
| 2 Jun | | Born | José Antonio Basurco y Herrera † | Buenos Aires | Bishop of Buenos Aires, Argentina |
| 51.1 | Ordained Priest | Pietro Zorzi † | Priest | Titular Bishop of Chalcis in Syria |
| 4 Jun | 81.4 | Died | Wilhelm Jakob Rinck von Balderstein † | Bishop of Basel, Switzerland |
| 6 Jun | 29.9 | Ordained Priest | Benjamin de L’Isle du Gast † | Priest | Bishop of Limoges, France |
| 24.1 | Ordained Priest | Stanislao Poliastri † | Priest | Archbishop of Rossano, Italy |
| 42.6 | Ordained Priest | Giovanni Todone † | Priest | Bishop of Asti, Italy |
| 8 Jun | 46.3 | Appointed | Giosafatte (Giosafat) Battistelli † | Bishop of Ripatransone, Italy | Bishop of Foligno, Italy |
| 37.4 | Appointed | Onofrio Elisei † | Bishop of Bagnoregio (Bagnorea), Italy | Bishop of Orvieto, Italy |
| 22 Jun | | Born | Jean Baptiste D’Orliè De Saint Innocent, C.R.S.A. † | Chambery | Bishop of Pinerolo, Italy |
| 57.5 | Confirmed | Augustin de Maupeou † | Archbishop of Auch, France |
| 29 Jun | | Born | Pietro Di Gennaro † | Napoli | Bishop Emeritus of Cava (de’ Tirreni), Italy |
| 60.5 | Ordained Bishop | Mateo Foncillas Mozárabe † | Bishop of Jaca, Spain |