| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 24.1 | Ordained Priest | Jan Tobiasz Augustynowicz † | Priest of Lviv (Armenian), Ukraine | Archbishop |
| 50.0 | Died | Stanisław Bedliński † | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| 61.0 | Died | Franciscus Ludovicus de Bruna Rico † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 62.6 | Resigned | Francesco Buonvisi † | Apostolic Nuncio to Austria | Cardinal, Bishop of Lucca, Italy |
| Died | Daniel Delfino † | Coadjutor Patriarch of Aquileia, Italy |
| Born | Imrich I. Esterházy † | Iaurinen | Bishop of Nitra, Slovakia |
| Born | Hagop Petros II Hovsepian † | Alep | Patriarch of Cilicia (Armenian), Lebanon |
| 59.3 | Appointed | Philip Thomas Howard of Norfolk, O.P. † | Archpriest of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} | Cardinal, Cardinal-Priest of Santa Maria sopra Minerva |
| 67.7 | Ordained Priest | Francesco Maidalchini † | Priest | Cardinal, Cardinal-Priest of Santa Prassede |
| Born | Alexander Máriási † | Cassoviae | Bishop of Knin, Croatia |
| Born | Claude-François de Narbonne-Pelet † | Arles | Bishop of Lectoure, France |
| Born | Simon Negri † | Alessio | Bishop of Lezhë {Lesh, Alessio}, Albania |
| Born | Andreas de Rossi, C.R. † | Napoli | Titular Bishop of Patara |
| Died | Giorgio Trivulzio, B. † | Auxiliary Bishop of Esztergom, Hungary |
| Born | Joseph-Alphonse de Valbelle de Tourves † | Aquen | Bishop of Saint-Omer, France |
| Born | Michel de Verthamon de Chavagnac † | Lemovicen | Bishop of Montauban, France |
| 41.0 | Ordained Bishop | Juan de Villacé y Vozmediano † | Bishop of Guadix, Spain | Bishop of Plasencia, Spain |
| Jan | | Born | Stjepan Blasković, C.O. † | Solta | Bishop of Makarska, Croatia |
| Born | Eustachius Entreri, O.M. † | S. Petri in Guarano | Bishop of Nicotera, Italy |
| 2 Jan | 43.2 | Ordained Bishop | Vittorio Priuli, C.R.L. † | Archbishop of Zadar (Zara), Croatia |
| 8 Jan | 40.0 | Confirmed | Pedro da Silva, O.S.A. † | Bishop of Cochin, India |
| 24 Jan | 43.6 | Appointed | Alberto Botti (Blotto), O. Carm. † | Bishop of Albenga, Italy |
| 64.7 | Died | Henri Fuchs † | Apostolic Administrator Emeritus of Lausanne, Switzerland |
| 72.1 | Appointed | John O’Mollony † | Bishop of Limerick, Ireland |
| Born | Nicola Paolo Pandolfelli † | Barletta | Bishop of Mottola (Motula), Italy |
| 54.1 | Appointed | Pietro de Torres † | Bishop of Potenza, Italy | Archbishop of Trani, Italy |
| Confirmed | Patrick Tyrrell (Tyrell), O.F.M. † | Bishop of Meath, Ireland |
| 31 Jan | 54.1 | Died | Manuel de Herrera, O.F.M. † | Bishop of Durango, México |
| Feb | 60.1 | Died | Bernardino Corniani † | Bishop of Pula (Pola), Croatia |
| 2 Feb | | Born | Nicolaus (Arcangelo) Bianchini, O.C.D. † | Scansano Sovana | Bishop of Sovana (Soana), Italy |
| 29.1 | Ordained Priest | Jan Kazimierz de Alten Bokum † | Priest of Przemyśl, Poland | Bishop of Chelmno (Culma, Kulm), Poland |
| 4 Feb | 78.7 | Died | Francesco Alberti di Poja † | Bishop of Trento, Italy |
| 5 Feb | | Born | Gian Alberto De’ Grandi † | Venezia | Bishop of Chioggia, Italy |
| 6 Feb | 41.7 | Ordained Priest | Onofrio Montesoro † | Priest | Bishop Emeritus of Castellaneta, Italy |
| 13 Feb | 66.8 | Died | Carlo Pio di Savoia † | Cardinal, Cardinal-Bishop of Sabina |
| 24 Feb | | Born | Pietro Paolo de Conti † | Camerino, Italy | Cardinal, Cardinal-Priest of Santo Stefano al Monte Celio |
| Born | Prudentius (Joannes Philippus) Patti, O.S.B. † | Messanen | Titular Bishop of Diocaesarea in Isauria |
| 27 Feb | 43.2 | Ordained Priest | Giovanni Rasponi † | Priest | Bishop of Forli, Italy |
| 28 Feb | 52.9 | Appointed | Giovanni Bonella, O. Carm. † | Bishop of Ariano, Italy | Bishop of Tropea, Italy |
| 65.7 | Appointed | Paluzzo Paluzzi Altieri Degli Albertoni † | Cardinal-Bishop of Sabina | Cardinal, Archbishop Emeritus of Ravenna, Italy |
| 41.0 | Appointed | Francesco Ramírez, O.P. † | Archbishop of Brindisi, Italy | Bishop of Agrigento (Girgenti), Italy |
| 43.2 | Appointed | Giovanni Rasponi † | Bishop of Forli, Italy |
| 76.8 | Appointed | Giulio Spinola † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Bishop Emeritus of Lucca, Italy |
| Mar | 55.2 | Died | Riccardo Annibaleschi della Molara † | Bishop of Veroli, Italy |
| Born | Cesare Bonajuti † | Preci | Bishop of Hvar (Lesina), Croatia |
| 48.2 | Died | Giovanni Battista Ponzi † | Bishop of Umbriatico (Umbriaticum), Italy |
| 2 Mar | | Born | José Félix Valverde † | Granada, Spain | Bishop of Michoacán, México |
| 6 Mar | 52.9 | Ordained Bishop | Giovanni Bonella, O. Carm. † | Bishop of Ariano, Italy | Bishop of Tropea, Italy |
| 41.1 | Ordained Bishop | Francesco Ramírez, O.P. † | Archbishop of Brindisi, Italy | Bishop of Agrigento (Girgenti), Italy |
| 7 Mar | 77.3 | Died | Franz Johann von Vogt von Altensumerau und Prasberg † | Bishop of Konstanz {Constance}, Germany |
| 9 Mar | 85.5 | Died | François Adhémar de Monteil de Grignan † | Archbishop of Arles, France |
| 51.2 | Succeeded | Jean-Baptiste Adhémar de Monteil de Grignan † | Archbishop of Arles, France |
| 13 Mar | | Ordained Bishop | Blasius Jaklin † | Bishop of Knin, Croatia | Bishop of Nitra, Slovakia |
| 16 Mar | 61.2 | Died | Sebastian von Pötting-Persing † | Bishop of Passau, Germany |
| 17 Mar | | Born | Kornylij Lebeckyj, O.S.B.M. † | Slomin | Bishop of Foreign Diocese |
| 20 Mar | 43.2 | Ordained Bishop | Giovanni Rasponi † | Bishop of Forli, Italy |
| 26 Mar | 29.1 | Ordained Priest | Colombino Bassi, O.S.B. † | Priest of Order of Saint Benedict | Bishop of Pistoia e Prato, Italy |
| 23.1 | Ordained Priest | Pietro Vincenzo Platamone, O.P. † | Priest of Order of Friars Preachers | Bishop of Lipari, Italy |
| 31 Mar | 48.8 | Died | Tommaso Caracciolo, O.S.B. † | Bishop of Gerace, Italy |
| Apr | 92.3 | Died | Alessandro Egizio † | Bishop of Andria, Italy |
| 9 Apr | 38.2 | Ordained Priest | Franz Ferdinand von Kuenburg † | Priest of Salzburg, Austria | Archbishop of Praha {Prague}, Czech Republic |
| 23.3 | Ordained Priest | Tomás José Ruiz Montes † | Priest | Bishop of Cartagena (en España) |
| 12 Apr | 25.6 | Ordained Priest | Nicolaus Pohmajevich † | Priest | Bishop of Senj (-Modruš), Croatia |
| 13 Apr | 53.3 | Died | José Cosio Barreda † | Bishop of Salamanca, Spain |
| 60.3 | Died | Francisco de Borja † | Bishop of Trujillo, Peru |
| Born | Hijacint Marija Milković, O.P. † | Ragusin | Archbishop of Dubrovnik (Ragusa), Croatia |
| 14 Apr | 45.0 | Selected | Marquard Rudolf von Rodt † | Bishop of Konstanz {Constance}, Germany |
| 24 Apr | 45.3 | Ordained Bishop | Sigmund Ignaz von Wolkenstein-Trostburg † | Bishop of Chiemsee, Germany |
| 27 Apr | 74.3 | Died | Gabriel-Philippe de Froullay de Tessé † | Bishop of Avranches, France |
| 28 Apr | 65.8 | Selected | Giuseppe Vittorio Alberti d’Enno † | Bishop of Trento, Italy |
| May | | Died | Marcello Filonardi † | Bishop of Aquino, Italy |
| 56.2 | Ordained Bishop | Pierre de Montenbach † | Bishop of Lausanne, Switzerland |
| 8 May | | Born | Innocentius (Joannes Antonius) Stratman, O.C.D. † | Honningen | Titular Bishop of Aureliopolis in Asia |
| 11 May | 77.4 | Died | Gregório dos Anjos, C.S.J. † | Bishop of São Luís do Maranhão, Brazil |
| 20 May | 59.4 | Died | Estevão Brioso de Figueiredo † | Bishop of Funchal, Portugal |
| 22 May | 26.4 | Ordained Priest | Muzio Gaeta (Sr.) † | Priest | Archbishop of Bari (-Canosa), Italy |
| 23 May | 71.4 | Appointed | Oleguer de Montserrat Rufet † | Bishop of Urgell, Spain |
| 46.2 | Appointed | Fabrizio Spada † | Cardinal-Priest of San Crisogono | Cardinal, Cardinal-Bishop of Palestrina |
| 24 May | 37.0 | Selected | Johann Philipp von Lamberg † | Cardinal, Bishop of Passau, Germany |
| 27 May | | Born | Andreas Jakob von Dietrichstein † | Iglau | Archbishop of Salzburg, Austria |
| 28 May | 35.4 | Selected | Martin de Ratabon † | Bishop of Ypres (Ieper), Belgium | Bishop Emeritus of Viviers (Aps), France |
| Jun | | Born | Marcus de Luchi † | Scestanensi | Archbishop of Bar (Antivari), Montenegro |
| 4 Jun | 26.2 | Ordained Priest | Gioacchino Francesco Caprini (Carpi) † | Priest | Bishop of Bitetto, France |
| 22.4 | Ordained Priest | Giacinto Dragonetti, C.O. † | Priest of Confederation of Oratorians of St. Philip Neri | Bishop of Marsi, Italy |
| 26.8 | Ordained Priest | Domenico Antonio Gagliano, C.R. † | Priest of Congregation of Clerics Regular | Bishop of Lettere (-Gragnano), Italy |
| 23.2 | Ordained Priest | Francesco Maria Muscettola, C.R. † | Priest of Congregation of Clerics Regular | Archbishop Emeritus of Rossano, Italy |
| 6 Jun | 70.5 | Appointed | Carlo de Ferrari † | Bishop of Bitonto, Italy |
| 49.4 | Appointed | Diego Ladrón de Guevara † | Bishop of Panamá | Bishop of Quito, Ecuador |
| 57.3 | Appointed | Manuel de Moura Manuel † | Bishop of Miranda (do Douro), Portugal |
| 38.0 | Appointed | Michele Petirro † | Bishop of Termoli, Italy | Bishop of Pozzuoli, Italy |
| 7 Jun | 64.7 | Died | Alphonse de Berghes † | Archbishop of Mechelen, Belgium |
| 8 Jun | 66.2 | Died | Decio Azzolini (Jr.) † | Cardinal, Secretary Emeritus of the Secretariat of State |
| 10 Jun | 33.6 | Selected | Fabio Brulart de Sillery † | Bishop of Avranches, France | Bishop of Soissons, France |
| Died | Bonaventura Cavalli, O.F.M. † | Bishop of Caserta, Italy |