| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 47.2 | Appointed | Alessandro Albani † | Cardinal-Deacon of Sant’Agata de’ Goti | Cardinal, Archivist of the Vatican Secret Archive |
| 22.8 | Ordained Priest | Antonio Bucci † | Priest | Titular Bishop of Orthosias in Caria |
| Born | Francesco Maria Cioja † | | Bishop of Todi, Italy |
| 55.2 | Died | Gennaro Maria Danza † | Bishop of Calvi Risorta, Italy |
| Born | Boetius Egan † | | Archbishop of Tuam, Ireland |
| 23.4 | Ordained Priest | Raimondo Fusco, O.F.M. Conv. † | Priest of Order of Friars Minor Conventual | Bishop of Monopoli, Italy |
| Born | Philippe Gemayel † | | Bishop of Cyprus (Maronite) |
| Appointed | Isaac † | Bishop |
| Ordained Bishop | Isaac † | Bishop |
| 14.6 | Professed | Johann Heinrich von Kerens, S.J. † | Member of Society of Jesus | Bishop of Sankt Pölten, Austria |
| Born | Antoine Etienne Aconcius Köver, C.M.V. † | | Abbot General of Congregazione Mechitarista di Venezia |
| 15.3 | Professed | Antoni Adam Młodowski-Struś, O.S.B.M. † | Member of Basilian Order of Saint Josaphat (Order of St. Basil the Great) | Bishop of Volodymyr (Włodzimierz) et Brėst (Ukrainian) |
| 51.1 | Died | Leandro de Santo Agostinho da Piedade, O.A.D. † | Bishop of São Tomé e Príncipe |
| 69.3 | Died | Bartolomé San Martín y Uribe † | Bishop of Palencia, Spain |
| 16.0 | Entered | Atanazy Andrzej Szeptycki (Sheptyskyi), O.S.B.M. † | Member of Basilian Order of Saint Josaphat (Order of St. Basil the Great) | Bishop of Przemyśl, Sambor, et Sanok (Ukrainian), Poland |
| 61.9 | Died | Antonio Vladagni † | Bishop of Shkodrë (Scutari), Albania |
| Born | Walenty Wołczacki, O.P. † | | Titular Bishop of Tamasus |
| 43.2 | Ordained Bishop | Francisco Zarceño Martínez, O.SS.T. † | Bishop of Solsona, Spain |
| Jan | 66.0 | Appointed | Leandro di Porzia (Porcia), O.S.B. † | Prefect of the Congregation of the Index | Cardinal, Bishop Emeritus of Bergamo, Italy |
| 74.3 | Died | Nicolò Tupputi † | Bishop of Nusco, Italy |
| 4 Jan | | Born | Luigi Maria Pirelli, C.R. † | | Archbishop of Trani e Bisceglie, Italy |
| 5 Jan | 45.0 | Installed | Andrzej Stanisław Załuski † | Bishop of Chelmno (Culma, Kulm), Poland | Bishop of Kraków, Poland |
| 6 Jan | 25.5 | Ordained Deacon | Władysław Wierusz Walknowski (Walichnowski) † | Deacon of Poznań, Poland | Auxiliary Bishop |
| 10 Jan | 42.8 | Selected | Charles-Antoine de la Roche-Aymon † | Archbishop of Toulouse, France | Cardinal, Archbishop of Reims, France |
| 11 Jan | 79.2 | Died | Gianantonio Davia † | Cardinal, Bishop Emeritus of Rimini, Italy |
| 12 Jan | 60.0 | Died | Thomas John Francis de Strickland de Sizorghe † | Bishop of Namur {Namen}, Belgium |
| 14 Jan | | Born | Antonio Felice Zondadari † | | Cardinal, Archbishop of Siena, Italy |
| 15 Jan | | Born | Jean-Baptiste-Joseph de Lubersac † | | Bishop Emeritus of Chartres, France |
| 17 Jan | 45.8 | Selected | Isidro de Arevalo † | Bishop of Nueva Caceres, Philippines |
| 50.0 | Selected | Protacio Cabezas † | Bishop of Cebu, Philippines |
| 23.5 | Ordained Deacon | Emmanuel Ernst von Waldstein † | Deacon of Praha {Prague}, Czechia | Bishop of Litoměřice, Czechia |
| 19 Jan | | Born | Scipione de’ Ricci † | | Bishop Emeritus of Pistoia e Prato, Italy |
| 22 Jan | 68.3 | Died | Giberto Bartolomeo Borromeo † | Cardinal, Bishop of Novara, Italy |
| Born | Vincenzo Manni † | | Bishop of Tivoli, Italy |
| Born | Giuseppe Maria de Mellis † | | Bishop of Aquino e Pontecorvo, Italy |
| 23 Jan | | Appointed | Melkon Markar Tahmanian † | Bishop of Mardin (Armenian), Turkey |
| 24 Jan | 72.5 | Died | Vincenzo Vecchiarelli † | Bishop of Nepi e Sutri, Italy |
| Feb | 28.0 | Ordained Priest | Manuel de Alday y Aspée † | Priest of Santiago de Chile | Bishop |
| 56.9 | Ordained Bishop | Francisco Antonio Bustamante Jiménez † | Bishop of Barbastro, Spain | Bishop of Plasencia, Spain |
| 2 Feb | 25.6 | Ordained Priest | Władysław Wierusz Walknowski (Walichnowski) † | Priest of Poznań, Poland | Auxiliary Bishop |
| 6 Feb | 87.8 | Died | Lorenzo Corsini † | Pope (Roma {Rome}, Italy) |
| 69.5 | Resigned | Giuseppe Firrao † | Secretary of State | Cardinal, Bishop Emeritus of Aversa, Italy |
| 7 Feb | 24.2 | Ordained Priest | Anzelmo (Nicolò) Katić (Cattich), O.F.M. Obs. † | Priest of Order of Observant Friars Minor | Bishop of Trebinje e Mrkan, Bosnia and Herzegovina |
| 39.3 | Ordained Bishop | Jean-Gilles du Coêtlosquet † | Bishop of Limoges, France | Bishop Emeritus |
| 9 Feb | | Born | Carmine Fimiani † | | Bishop of Nardò, Italy |
| 10 Feb | 61.3 | Resigned | Giuseppe Maria Martelli † | Archbishop of Firenze {Florence}, Italy | Archbishop Emeritus |
| 69.1 | Died | Giuseppe Maria Perrimezzi, O.M. † | Bishop Emeritus of Oppido Mamertina, Italy |
| 12 Feb | | Born | Francesco de Lauria † | | Bishop of Guardialfiera (Guardia), Italy |
| 16 Feb | | Born | Grégoire Joseph Koudsi † | | Archbishop of Jerusalem {Gerusalemme} (Syrian), Lebanon |
| 48.0 | Selected | Antoni Dominik Tyszkiewicz † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 20 Feb | 71.1 | Died | Charles de Fontaine des Montees † | Bishop of Nevers, France |
| 21 Feb | | Born | Jean-Baptiste de Chabot † | | Bishop Emeritus of Mende, France |
| 23 Feb | | Born | Damían Martínez de Galinzoga, O.F.M. Obs. † | | Bishop of Tarazona, Spain |
| 25 Feb | 67.3 | Died | Girolamo Mattei † | Archbishop Emeritus of Fermo, Italy |
| 52.6 | Ordained Bishop | Onésimo Salamanca Zaldívar † | Bishop of Zamora, Spain | Archbishop of Burgos, Spain |
| 28 Feb | 69.1 | Died | Charles-François de Châteauneuf de Rochebonne † | Archbishop of Lyon, France |
| 29 Feb | 72.6 | Died | Pietro Ottoboni † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| Mar | 69.3 | Died | Cinugo Settimio Cinughi † | Bishop of Pienza, Italy |
| 63.0 | Died | Biagio de Dura † | Bishop of Potenza, Italy |
| 7 Mar | 67.9 | Died | Andrés de Orbe y Larreátegui † | Archbishop Emeritus of Valencia, Spain |
| 9 Mar | | Born | Vincenzo Ferretti † | | Bishop of Rimini, Italy |
| 12 Mar | 66.6 | Died | Giovanni Battista Altieri (Jr.) † | Cardinal, Cardinal-Bishop of Palestrina |
| 23.4 | Ordained Priest | Orazio Berarducci † | Priest | Bishop of Bitonto, Italy |
| 28.1 | Ordained Priest | Henri Hachette des Portes, O. Carm. † | Priest | Bishop of Glandèves, France |
| 13 Mar | 39.4 | Installed | Jean-Gilles du Coêtlosquet † | Bishop of Limoges, France | Bishop Emeritus |
| Born | Maciej Grzegorz Garnysz † | | Bishop of Chełm, Poland |
| Born | Gioacchino Vassetta, O.M.D. † | | Bishop of Castellaneta, Italy |
| 16 Mar | 59.8 | Died | Krzysztof Andrzej Jan Szembek † | Bishop of Warmia (Ermland), Poland |
| 20 Mar | 54.5 | Ordained Bishop | Jean de Lolière-Puycontat, M.E.P. † | Titular Bishop of Iuliopolis | Vicar Apostolic of Siam, Thailand |
| 23 Mar | | Born | Giovanni Thomas Vincenzo Tiberio d’Anisi, O.A.D. † | | Bishop of Gallipoli, Italy |
| 30 Mar | | Born | José Nicolau de Azevedo Coutinho Gentil † | | Prelate Emeritus of Goiás, Brazil |
| 2 Apr | 24.0 | Ordained Priest | Michel Conseil † | Priest | Bishop of Chambéry, France |
| 31.5 | Ordained Priest | Matteo Gennaro Testa Piccolomini † | Priest | Archbishop Emeritus of Reggio Calabria, Italy |
| 3 Apr | 79.2 | Died | Thomas Dominic Williams, O.P. † | Vicar Apostolic of Northern District, England, Great Britain |
| 4 Apr | | Born | François Cittadella † | | Bishop of Accia and Mariana, France |
| 6 Apr | 49.1 | Died | Jacques-Charles-Alexandre Lallemant † | Bishop of Sées {Séez}, France |
| 8 Apr | | Born | Matteo Aceto † | | Bishop-Elect of Nusco, Italy |
| 11 Apr | 61.9 | Died | Nicola Saverio Albini † | Titular Archbishop of Athenae |
| 13 Apr | | Born | Jacques-Joseph-François de Vogüé † | | Bishop of Dijon, France |
| 17 Apr | 46.8 | Ordained Bishop | Pedro Felipe de Azúa e Iturgoyen † | Titular Bishop of Botrys | Archbishop Emeritus of Santafé en Nueva Granada, Colombia |
| 20 Apr | | Died | Bernard O’Gara † | Archbishop of Tuam, Ireland |
| 24 Apr | 70.3 | Died | Marko Andrijašević (Andreassi) † | Archbishop of Sardica (Sredek, Sofia), Bulgaria |
| 30 Apr | | Born | Charles-Eutrope de La Laurancie † | | Bishop of Nantes, France |
| 1 May | | Born | Jozafat Bastašić (Bastasyc), O.S.B.M. † | | Bishop of Križevci (Kreutz) (Križevci), Croatia |
| 38.3 | Ordained Bishop | Jean Pierre Paul Joseph de Brunet de Pujols de Castelpers de Panat † | Titular Bishop of Euroea in Epiro | Auxiliary Bishop of Albi, France |
| 22.3 | Ordained Deacon | Manoel da Ressurreição, O.F.M. Obs. † | Deacon of Order of Observant Friars Minor | Bishop of São Paulo, Brazil |
| 2 May | | Born | Manuel Ignacio González de Campillo Gómez del Valle † | | Bishop of Tlaxcala (Puebla de los Angeles), México |
| 3 May | 42.3 | Selected | Louis-François Néel de Christot † | Bishop of Sées {Séez}, France |
| 8 May | 51.3 | Ordained Bishop | Hagop Petros II Hovsepian † | Bishop of Alep (Armenian), Syria | Patriarch of Cilicia (Armenian), Lebanon |
| 15 May | 24.6 | Ordained Deacon | João Cosme da Cunha (de Nossa Senhora da Porta), C.R.S.A. † | Deacon of Confederation of Canons Regular of St. Augustine | Cardinal, Archbishop of Évora, Portugal |
| 22 May | 24.6 | Ordained Priest | João Cosme da Cunha (de Nossa Senhora da Porta), C.R.S.A. † | Priest of Confederation of Canons Regular of St. Augustine | Cardinal, Archbishop of Évora, Portugal |
| 41.6 | Died | Claude-Louis de La Châtre † | Bishop of Agde, France |
| 1 Jun | | Born | Giovanni Battista Rezzonico † | | Cardinal, Cardinal-Deacon of San Nicola in Carcere |
| 2 Jun | 66.4 | Died | Leandro di Porzia (Porcia), O.S.B. † | Cardinal, Bishop Emeritus of Bergamo, Italy |
| 10 Jun | | Born | Antonio Palafox y Croy de Abre † | | Bishop of Cuenca, Spain |
| 11 Jun | 24.1 | Ordained Priest | Bartolomeo Bitozzi † | Priest | Bishop of Ripatransone, Italy |
| 12 Jun | 30.2 | Selected | Joseph-François de Cadenet de Charleval † | Bishop of Agde, France |
| 82.3 | Died | Johann Franz von Schenk von Stauffenberg † | Bishop of Konstanz {Constance}, Germany |
| 14 Jun | 31.8 | Ordained Priest | Heinrich Joseph von Nitschke † | Priest of Mainz, Germany | Auxiliary Bishop of Bamberg, Germany |
| 16 Jun | | Born | Jean-François Périer † | | Bishop Emeritus of Avignon, France |
| Born | Paolo Pozzuoli † | | Bishop of Sant’Agata de’ Goti, Italy |
| 20 Jun | | Born | Grzegorz Zachariasiewicz † | | Auxiliary Bishop of Gniezno, Poland |
| 24 Jun | 64.0 | Died | Serafino Cenci † | Cardinal, Archbishop of Benevento, Italy |
| Born | Pedro José Chávez de la Rosa † | | Bishop Emeritus of Arequipa, Peru |
| 26 Jun | | Born | Michele de Angelis † | | Bishop of Gravina (di Puglia), Italy |
| 21.1 | Ordained Deacon | João Marcelino dos Santos Homem Aparício † | Deacon | Bishop of Angra, Portugal |
| 29 Jun | 21.1 | Ordained Priest | João Marcelino dos Santos Homem Aparício † | Priest | Bishop of Angra, Portugal |