| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Adam Acsády † | | Bishop of Veszprém, Hungary |
| Born | Salvador Bermúdez y Becerra † | | Archbishop of La Plata o Charcas, Bolivia |
| 46.0 | Resigned | Giuseppe Bologna † | Archbishop of Benevento, Italy | Archbishop of Capua, Italy |
| Born | Giovanni Francesco Bossi, O.F.M. Conv. † | | Archbishop of Naxos, Greece |
| Appointed | Boutros Ehdeni † | Bishop of Saïdā (Sidone) (Maronite), Lebanon |
| Ordained Bishop | Boutros Ehdeni † | Bishop of Saïdā (Sidone) (Maronite), Lebanon |
| Born | John Galata † | | Archbishop of Durrës (Durazzo), Albania |
| 15.3 | Professed | Vincenzo Ludovico Gotti, O.P. † | Member of Order of Friars Preachers | Cardinal, Cardinal-Priest of San Sisto |
| Born | Juan Antonio de Lardizabal y Elorza † | | Bishop of Tlaxcala (Puebla de los Angeles), México |
| Born | Sylvester Louis Lloyd, O.F.M. † | | Bishop of Waterford and Lismore, Ireland |
| 62.0 | Died | Lodovico Magni, O.F.M. Conv. † | Bishop of Acquapendente, Italy |
| 28.0 | Professed | Charles Maigrot, M.E.P. † | Priest of La Société des Missions Etrangères | Vicar Apostolic Emeritus of Fukien (Kuiceu), China |
| Born | Charles-Guillaume de Maupeou † | | Bishop of Lombez, France |
| Born | Bernard MacMahon (McMahon) † | | Archbishop of Armagh, Ireland |
| 60.0 | Resigned | Fulgenzio Arminio Monforte, O.S.A. † | Bishop of Nusco, Italy | Bishop Emeritus |
| Born | Ambrose O’Callaghan, O.F.M. Ref. † | | Bishop of Ferns, Ireland |
| 19.0 | Ordained Priest | Fabricius Gabriel (Carbry) O’Kelly † | Priest of Elphin, Ireland | Bishop |
| 54.9 | Resigned | Manoel Pereira, O.P. † | Bishop of São Sebastião do Rio de Janeiro, Brazil | Bishop Emeritus |
| 25.4 | Ordained Priest | Agostino Steffani † | Priest of Freising, Germany | Vicar Apostolic of Upper and Lower Saxony (Hanover, Northern Germany), Germany |
| 41.9 | Appointed | Bl. Niels Stensen † | Auxiliary Bishop of Münster, Germany | Vicar Apostolic of Nordic Missions, Germany |
| Born | Thomas John Francis de Strickland de Sizorghe † | | Bishop of Namur {Namen}, Belgium |
| Born | Cyril VI (Séraphim) Tanas † | | Patriarch of Antiochia {Antioch} (Melkite Greek), Syria |
| 36.4 | Ordained Bishop | Johann Ernst von Thun † | Bishop of Seckau, Austria | Archbishop of Salzburg, Austria |
| 27.3 | Ordained Priest | Rudolf Joseph von Thun † | Priest of Salzburg, Austria | Bishop of Seckau, Austria |
| Died | Josyf Volosynovskyj † | Bishop Emeritus of Mukachevo (Munkács) (Ruthenian), Ukraine |
| 63.0 | Died | Bernardo de Santa Maria Zuzarte de Andrade, C.R.S.A. † | Bishop of São Tomé e Príncipe |
| 1 Jan | | Born | Giuseppe Barlotta y Ferro † | | Titular Bishop of Thelepte |
| Born | Ottavio Ringhieri † | | Bishop of Assisi, Italy |
| 3 Jan | 69.0 | Died | Gilbert de Clérembault † | Bishop of Poitiers, France |
| 8 Jan | 86.2 | Appointed | Francesco Albizzi † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Cardinal-Priest of Santa Prassede |
| 66.4 | Appointed | Alderano Cibo (Cybo) † | Cardinal-Bishop of Frascati | Cardinal, Bishop Emeritus of Jesi, Italy |
| 71.3 | Appointed | Cesare Facchinetti † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 68.9 | Appointed | Felipe Fernandez de Pardo, O.P. † | Archbishop of Manila, Philippines |
| 45.8 | Appointed | Jules Mascaron, C.O.I. † | Bishop of Agen, France |
| 56.0 | Appointed | Giovanni Battista Nepita † | Bishop of Sant’Angelo dei Lombardi e Bisaccia, Italy | Bishop of Massa Lubrense, Italy |
| 71.0 | Appointed | Luigi Omodei (Sr.) † | Cardinal, Cardinal-Priest of San Lorenzo in Lucina |
| 41.0 | Appointed | Jan Kazimierz Opaliński, O. Cist. † | Coadjutor Bishop of Poznań, Poland | Bishop of Chelmno (Culma, Kulm), Poland |
| 41.0 | Appointed | Jan Kazimierz Opaliński, O. Cist. † | Titular Bishop of Diocletiana | Bishop of Chelmno (Culma, Kulm), Poland |
| 69.7 | Appointed | Pietro Vito Ottoboni † | Cardinal-Priest of Santa Prassede | Pope (Roma {Rome}, Italy) |
| 65.0 | Appointed | Lorenzo Raggi † | Cardinal, Cardinal-Bishop of Palestrina |
| 66.0 | Appointed | Carlo Rossetti † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Bishop of Faenza, Italy |
| 14 Jan | 60.0 | Ordained Bishop | Nicolás Ortiz del Puerto y Colmenares Salgado † | Bishop of Antequera, Oaxaca, México |
| 56.0 | Ordained Bishop | Giovanni Battista Nepita † | Bishop of Sant’Angelo dei Lombardi e Bisaccia, Italy | Bishop of Massa Lubrense, Italy |
| 65.0 | Ordained Bishop | Lorenzo Raggi † | Cardinal, Cardinal-Bishop of Palestrina |
| 17 Jan | 84.0 | Died | Giorgio (Gregorio) Bolognetti † | Bishop Emeritus of Rieti, Italy |
| 21 Jan | 75.0 | Died | Vincenzo Candiotti † | Bishop of Bagnoregio (Bagnorea), Italy |
| 22 Jan | 48.0 | Appointed | Juan Álvarez Osorio † | Bishop of Plasencia, Spain |
| 61.0 | Died | Bernard Coignet de Marmiesse † | Bishop of (Saint-Lizier de) Couserans (or Conserans), France |
| 63.0 | Appointed | Francesco Martinelli, C.O. † | Bishop of Patti, Italy |
| 30.9 | Appointed | Pietro Francesco (Vincenzo Maria) Orsini de Gravina, O.P. † | Archbishop (Personal Title) of Cesena, Italy | Pope (Roma {Rome}, Italy) |
| 55.0 | Appointed | Juan Pérez de Corcha † | Bishop of La Paz, Bolivia | Bishop-Elect |
| 51.0 | Confirmed | Jean Crisóstomo Royo de Castellvi † | Bishop of Segorbe, Spain |
| 63.0 | Appointed | Francesco Tansi † | Bishop of Nicastro, Italy |
| 53.0 | Appointed | Jan Konstanty Wożuczyński † | Auxiliary Bishop of Chełm, Poland |
| 53.0 | Appointed | Jan Konstanty Wożuczyński † | Titular Bishop of Byblus | Auxiliary Bishop of Chełm, Poland |
| 24 Jan | | Born | Hyacinth Petit, O. Carm. † | | Vicar Apostolic of Nordic Missions, Germany |
| 28 Jan | 63.0 | Ordained Bishop | Francesco Martinelli, C.O. † | Bishop of Patti, Italy |
| 63.0 | Ordained Bishop | Francesco Tansi † | Bishop of Nicastro, Italy |
| 29 Jan | | Born | Alessandro Guiccioli † | | Bishop of Rimini, Italy |
| Born | José Marín y Ibáñez † | | Bishop of Almería, Spain |
| 50.0 | Appointed | Guillaume Mahot, M.E.P. † | Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| 50.0 | Appointed | Guillaume Mahot, M.E.P. † | Titular Bishop of Bida | Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| Feb | 80.0 | Died | Ottavio Boldoni, B. † | Bishop of Teano, Italy |
| 1 Feb | | Died | Guido Bentivoglio, C.R. † | Bishop Emeritus of Bertinoro, Italy |
| 2 Feb | 24.9 | Selected | Jacques-Nicolas de Colbert † | Coadjutor Archbishop of Rouen, France | Archbishop |
| Born | Julián Domínguez y Toledo † | | Bishop of Valladolid, Spain |
| 36.5 | Selected | Hardouin Fortin de la Hoguette † | Bishop of Poitiers, France | Archbishop of Sens, France |
| 6 Feb | 62.0 | Appointed | Johann Heinrich von Anethan † | Auxiliary Bishop of Köln {Cologne}, Germany |
| 8 Feb | 60.1 | Selected | Serafino Esquirro † | Bishop of Ales e Terralba, Italy |
| 11 Feb | | Born | Louis Néez, M.E.P. † | | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viet Nam |
| 51.1 | Ordained Bishop | Severo Tomás Auter, O.P. † | Bishop of Gerona, Spain | Bishop of Tortosa, Spain |
| 12 Feb | | Born | Tommaso Severi † | | Titular Bishop of Tricomia |
| 14 Feb | | Born | Lelio Valentino Contessini-Ettorio † | | Bishop of Pula (Pola), Croatia |
| 69.1 | Died | Stefano de Gaspare † | Bishop of Sapë, Albania |
| 75.7 | Died | Léonor de Goyon de Matignon (I) † | Bishop Emeritus of Lisieux, France |
| 19 Feb | 64.1 | Appointed | Girolamo Gastaldi † | Cardinal, Archbishop of Benevento, Italy |
| 22 Feb | 50.1 | Selected | Francisco Pizaro de Orellana † | Bishop of Nueva Segovia, Philippines |
| 24 Feb | 35.1 | Selected | Gabriel de Saint-Estève † | Bishop of (Saint-Lizier de) Couserans (or Conserans), France |
| 29 Feb | 61.1 | Appointed | Stanisław Wojeński † | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine |
| 3 Mar | | Born | Melchor Angel Gutiérrez Vallejo † | | Bishop of Pamplona, Spain |
| 9 Mar | 60.8 | Selected | Pierre van den Perre † | Bishop of Namur {Namen}, Belgium |
| 10 Mar | | Ordained Bishop | János Kéry, O.S.P.P.E. † | Bishop of Csanád, Hungary | Bishop of Vác, Hungary |
| Born | Antonio Milón López † | | Titular Archbishop of Edessa in Osrhoëne |
| 11 Mar | 44.1 | Appointed | Giovan Donato Giannoni Alitto † | Bishop of Ruvo (Ruo)(di Puglia), Italy |
| 62.1 | Appointed | Francisco Domonte, O. de M. † | Auxiliary Bishop of Sevilla {Seville}, Spain |
| 62.1 | Appointed | Francisco Domonte, O. de M. † | Titular Bishop of Hippos | Auxiliary Bishop of Sevilla {Seville}, Spain |
| 45.5 | Confirmed | Anselm Franz von Ingelheim † | Archbishop of Mainz, Germany |
| 51.1 | Appointed | Giovan Giorgio Mainardi † | Bishop of Ripatransone, Italy |
| 58.8 | Appointed | Girolamo Prignano † | Bishop of Satriano e Campagna, Italy |
| 42.5 | Confirmed | Antonio de Vergara, O.P. † | Archbishop of Sassari, Italy | Bishop of Zamora, Spain |
| 32.1 | Appointed | Francisco Zapata Vera y Morales † | Auxiliary Bishop of Toledo, Spain | Bishop of Zamora, Spain |
| 32.1 | Appointed | Francisco Zapata Vera y Morales † | Titular Bishop of Dara | Bishop of Zamora, Spain |
| 12 Mar | 48.1 | Died | Juan Álvarez Osorio † | Bishop of Plasencia, Spain |
| 15 Mar | 22.4 | Ordained Deacon | Raymond Recrosio, B. † | Deacon of Clerics Regular of St. Paul | Bishop of Nice, France |
| 16 Mar | 24.1 | Ordained Priest | Marco Antonio Attaffi † | Priest | Bishop of Squillace, Italy |
| 17 Mar | 44.2 | Ordained Bishop | Giovan Donato Giannoni Alitto † | Bishop of Ruvo (Ruo)(di Puglia), Italy |
| 51.2 | Ordained Bishop | Giovan Giorgio Mainardi † | Bishop of Ripatransone, Italy |
| 58.8 | Ordained Bishop | Girolamo Prignano † | Bishop of Satriano e Campagna, Italy |
| 20 Mar | 35.8 | Appointed | Bernardino (Antonio) della Chiesa, O.F.M. Ref. † | Coadjutor Vicar Apostolic of Fukien (Kuiceu), China | Bishop of Peking [Beijing], China |
| 35.8 | Appointed | Bernardino (Antonio) della Chiesa, O.F.M. Ref. † | Titular Bishop of Argos | Bishop of Peking [Beijing], China |
| 24 Mar | 41.2 | Ordained Bishop | Jan Kazimierz Opaliński, O. Cist. † | Titular Bishop of Diocletiana | Bishop of Chelmno (Culma, Kulm), Poland |
| 30 Mar | | Born | Angelo Maria (Gerolamo) Quirini (Querini), O.S.B. † | | Cardinal, Bishop of Brescia, Italy |
| 31 Mar | 35.8 | Ordained Bishop | Bernardino (Antonio) della Chiesa, O.F.M. Ref. † | Titular Bishop of Argos | Bishop of Peking [Beijing], China |
| 1 Apr | | Appointed | José de Menezes † | Bishop of Faro {Algarve}, Portugal | Archbishop of Braga, Portugal |
| 14 Apr | | Died | Jaime de Copóns y de Tamarit † | Bishop of Lérida, Spain |
| 48.2 | Ordained Bishop | Sancho de Andrade de Figueroa † | Bishop of Ayacucho o Huamanga (Guamanga), Peru | Bishop of Quito, Ecuador |
| Born | Nicolas-Joseph de Paris † | | Bishop of Orléans, France |
| 15 Apr | 53.6 | Appointed | François Pallu, M.E.P. † | Vicar Apostolic of Fukien (Kuiceu), China |
| 17 Apr | | Born | José (de Bolaños) Calzado, O.F.M. Disc. † | | Titular Archbishop of Nisibis |
| 20 Apr | 23.9 | Ordained Priest | Giovanni Manola † | Priest | Bishop of Nona (Nin), Croatia |
| 30.4 | Ordained Deacon | Johann Eustach Egolf von Westernach † | Deacon of Augsburg, Germany | Auxiliary Bishop |
| 21 Apr | 62.3 | Died | Aloysius Bevilacqua † | Titular Patriarch of Alexandria {Alessandria} |
| 77.3 | Died | Lazzaro Pallavicino † | Cardinal, Cardinal-Priest of Santa Balbina |
| 29 Apr | 43.3 | Appointed | Ginés (Ginesio) Barrientos, O.P. † | Auxiliary Bishop of Manila, Philippines |
| 43.3 | Appointed | Ginés (Ginesio) Barrientos, O.P. † | Titular Bishop of Troas | Auxiliary Bishop of Manila, Philippines |
| 25.2 | Appointed | Jacques-Nicolas de Colbert † | Titular Archbishop of Cartagine | Archbishop of Rouen, France |
| 25.2 | Confirmed | Jacques-Nicolas de Colbert † | Coadjutor Archbishop of Rouen, France | Archbishop |
| 72.3 | Confirmed | Juan de Escalante Turcios y Mendoza † | Archbishop (Personal Title) of Yucatán (Mérida), México | Bishop |
| 55.9 | Appointed | Johann Daniel von Gudenus † | Auxiliary Bishop of Mainz, Germany |
| 55.9 | Appointed | Johann Daniel von Gudenus † | Titular Bishop of Utica | Auxiliary Bishop of Mainz, Germany |
| 47.3 | Appointed | Filippo Lenti † | Bishop of Ascoli Satriano (Puglia), Italy |
| 51.3 | Appointed | Giovanni Paolo Meniconi † | Bishop of Bagnoregio (Bagnorea), Italy |
| Appointed | Diego Petra † | Archbishop of Sorrento, Italy |
| 1 May | 45.6 | Ordained Bishop | Anselm Franz von Ingelheim † | Archbishop of Mainz, Germany |
| 47.3 | Ordained Bishop | Filippo Lenti † | Bishop of Ascoli Satriano (Puglia), Italy |
| 46.1 | Installed | Jules Mascaron, C.O.I. † | Bishop of Agen, France |
| 51.3 | Ordained Bishop | Giovanni Paolo Meniconi † | Bishop of Bagnoregio (Bagnorea), Italy |
| 11 May | 75.6 | Died | Henri de Béthune † | Archbishop of Bordeaux, France |
| 44.0 | Died | Carlo Filippo Sfondrati, B. † | Bishop of Volterra, Italy |
| 12 May | 64.3 | Ordained Bishop | Girolamo Gastaldi † | Cardinal, Archbishop of Benevento, Italy |
| 13 May | 50.8 | Appointed | Lelio Ardizzone † | Bishop of Casale Monferrato, Italy |
| 40.3 | Appointed | Pedro Cárdenas y Arbieto † | Bishop of Santa Cruz de la Sierra, Bolivia |
| 63.3 | Appointed | Carlo Stefano Anastasio Ciceri † | Cardinal, Bishop of Como, Italy |
| 57.3 | Appointed | Ján Gubasóczy (Gubašóci) † | Bishop of Nitra, Slovakia |
| 43.3 | Appointed | Tiberio Muscettola, C.O. † | Archbishop of Manfredonia, Italy | Archbishop Emeritus |
| 59.4 | Appointed | Giacinto Maria Passati, O.P. † | Bishop of Stagno (Ston), Croatia |
| 16 May | | Born | Krzysztof Andrzej Jan Szembek † | | Bishop of Warmia (Ermland), Poland |
| 17 May | 70.3 | Died | Diego Castiglione Morelli † | Bishop of Mileto, Italy |
| 19 May | 50.8 | Ordained Bishop | Lelio Ardizzone † | Bishop of Casale Monferrato, Italy |
| 43.3 | Ordained Bishop | Tiberio Muscettola, C.O. † | Archbishop of Manfredonia, Italy | Archbishop Emeritus |
| 59.4 | Ordained Bishop | Giacinto Maria Passati, O.P. † | Bishop of Stagno (Ston), Croatia |
| 27 May | 45.4 | Appointed | Francesco Berardino Corradini † | Bishop of Marsi, Italy |
| 53.8 | Confirmed | Victor-Augustin Méliand (Melrand) † | Bishop of Gap, France | Bishop Emeritus of Alet, France |
| 50.4 | Confirmed | Francisco Pizaro de Orellana † | Bishop of Nueva Segovia, Philippines |
| 31 May | 23.4 | Ordained Priest | Vitale Giuseppe de’ Buoi † | Priest | Bishop of Perugia, Italy |
| 54.7 | Died | Ignaas August Schetz van Grobbendonck † | Bishop of Gent {Ghent, Gand}, Belgium |
| 2 Jun | 45.4 | Ordained Bishop | Francesco Berardino Corradini † | Bishop of Marsi, Italy |
| 62.4 | Ordained Bishop | Francisco Domonte, O. de M. † | Titular Bishop of Hippos | Auxiliary Bishop of Sevilla {Seville}, Spain |
| 8 Jun | | Born | Giovanni Leonardo Sanna † | | Bishop of Bosa, Italy |
| 9 Jun | 51.4 | Ordained Bishop | Giuseppe Acorrà † | Bishop of Ampurias e Civita, Italy | Archbishop of Oristano, Italy |
| 42.7 | Ordained Bishop | Antonio de Vergara, O.P. † | Archbishop of Sassari, Italy | Bishop of Zamora, Spain |
| 10 Jun | 28.6 | Ordained Deacon | Gerolamo Archinto † | Deacon | Bishop of Vigevano, Italy |
| 11 Jun | 28.6 | Ordained Priest | Gerolamo Archinto † | Priest | Bishop of Vigevano, Italy |
| 66.7 | Died | Félix Vialart de Herse † | Bishop of Chalons-sur-Marne, France |
| 14 Jun | | Died | Íñigo (Ignacio) Royo, O.S.B. † | Bishop of Barbastro, Spain |
| 15 Jun | 24.1 | Ordained Priest | Bisanzio Fili † | Priest | Bishop of Ostuni, Italy |
| 30.6 | Ordained Priest | Johann Eustach Egolf von Westernach † | Priest of Augsburg, Germany | Auxiliary Bishop |
| 21 Jun | 29.0 | Selected | Louis-Antoine de Noailles † | Bishop of Chalons-sur-Marne, France | Cardinal, Archbishop of Paris, France |
| 24 Jun | | Born | Nicolò Antonio Carafa, O.S.B. † | | Bishop Emeritus of Tricarico, Italy |
| 30 Jun | | Born | Adriano Sermattei † | | Bishop of Viterbo e Tuscania, Italy |