| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Rodolpho Acquaviva † | | Titular Bishop of Laodicea in Phrygia |
| 55.0 | Died | Giuseppe Acquaviva † | Titular Archbishop of Thebae |
| 54.0 | Died | Albertus Aliprandi † | Bishop of Andros, Greece |
| Born | Riccardo Annibaleschi della Molara † | | Bishop of Veroli, Italy |
| Born | Louis-Anne Aubert de Villeserin † | | Bishop of Senez, France |
| Born | François-Ignace de Baglion du Saillant, C.O. † | | Bishop of Poitiers, France |
| 15.8 | Professed | Giovanni Carlo Baldovinetti, O.P. † | Member of Order of Friars Preachers | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 54.0 | Died | Francesco Bibilia † | Bishop of Isola, Italy |
| Born | Giuseppe Bologna † | | Archbishop of Capua, Italy |
| Born | Jacques de Bourges, M.E.P. † | | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viet Nam |
| 65.0 | Resigned | Michael de Bernardis, O.F.M. Ref. † | Bishop of Milos (Melos), Greece | Bishop Emeritus |
| 69.7 | Resigned | Cristóforo Chrisostome Carletti, O.F.M. † | Bishop of Termia (Thermae), Greece | Bishop Emeritus |
| Ordained Bishop | Miguel de Castro † | Bishop of Viseu, Portugal |
| Born | Joannes Dominicus Callegari † | | Bishop of Šibenik (Knin), Croatia |
| Born | Onofrio Costantini † | | Titular Archbishop of Derbe |
| Died | Giovan Battista Curiale (Correale) † | Bishop of Nicastro, Italy |
| Born | Orazio Fortunato † | | Bishop of Nardò, Italy |
| Born | Andrés González, O.P. † | | Bishop of Nueva Caceres, Philippines |
| Born | Juan González de Santiago † | | Bishop of Cuzco, Peru |
| Appointed | Girolamo Greco † | Archbishop of Durrës (Durazzo), Albania |
| Born | Francesco Grassi † | | Bishop of Nona (Nin), Croatia |
| 24.0 | Ordained Priest | Gabriel de la Calle y Heredia † | Priest | Bishop of Valladolid, Spain |
| 24.6 | Ordained Priest | Marijan Lisnjić, O.F.M. Obs. † | Priest of Order of Observant Friars Minor | Bishop of Makarska, Croatia |
| Born | José Llinás y Aznar, O. de M. † | | Archbishop of Tarragona, Spain |
| 54.0 | Appointed | Imre Lósy † | Bishop of Eger, Hungary | Archbishop of Esztergom, Hungary |
| Died | Gavino Manconi † | Bishop of Ales e Terralba, Italy |
| Born | Francisco Núñez de la Vega, O.P. † | | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| Born | Filippo Alferio Ossorio † | | Bishop of Fondi (Fundi), Italy |
| 44.0 | Appointed | Richard Paul Stravius † | Apostolic Internuncio to Flanders, Belgium | Auxiliary Bishop of Köln {Cologne}, Germany |
| 60.0 | Died | Diego Pereda, O.S. † | Auxiliary Bishop of Toledo, Spain |
| 66.0 | Died | Andrea Pierbenedetti † | Bishop of Venosa, Italy |
| 50.0 | Resigned | Pierre Pisani, O.F.M. † | Bishop of Hierapetra et Sitia, Greece | Bishop Emeritus |
| Born | Giovanni Riccanale † | | Bishop of Boiano, Italy |
| Born | Hyacinthus de Saldanha, O.P. † | | Auxiliary Bishop of Goa, India |
| 56.0 | Died | Filippo Salviati † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| Born | Joachim Skirmunt † | | Auxiliary Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 60.0 | Resigned | Giovanni Michele de Varolis, O.F.M. Conv. † | Bishop of Cefalonia e Zante, Greece | Bishop Emeritus |
| Born | Angelo Veniero (Venerius) † | | Bishop of Tinos and Mykonos, Greece |
| 1 Jan | 65.0 | Ordained Bishop | Mendo de Benavides † | Bishop of Segovia, Spain | Bishop of Cartagena (en España) |
| 6 Jan | 57.0 | Died | Meletiy Maksym Smotrytskyi (Smotrycki) † | Titular Archbishop of Hierapolis in Phrygia |
| 8 Jan | | Ordained Priest | Marino Badoer, O.S.B. † | Priest of Order of Saint Benedict | Bishop of Pula (Pola), Croatia |
| 9 Jan | 41.7 | Appointed | Francesco Maria Brancaccio † | Cardinal-Priest of Santi XII Apostoli | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 54.0 | Appointed | Diego Castejón Fonseca † | Bishop of Lugo, Spain | Bishop of Tarazona, Spain |
| 38.5 | Installed | Ulderico Carpegna † | Cardinal-Priest of Sant’Anastasia | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| Appointed | Pablo Durán † | Bishop of Urgell, Spain |
| 39.4 | Installed | Stefano Durazzo † | Cardinal-Priest of San Lorenzo in Panisperna | Cardinal, Archbishop Emeritus of Genova, Italy |
| 62.0 | Appointed | Hernando Guerrero, O.S.A. † | Archbishop of Manila, Philippines |
| 57.0 | Installed | Agostino Oreggi (Oregius) † | Cardinal-Priest of San Sisto | Cardinal, Archbishop of Benevento, Italy |
| 51.0 | Appointed | Andrzej Szołdrski † | Bishop of Kyiv (Kijów), Ukraine | Bishop of Poznań, Poland |
| 46.0 | Installed | Benedetto Ubaldi † | Cardinal-Deacon of Santi Vito, Modesto e Crescenzia | Cardinal, Bishop Emeritus of Perugia, Italy |
| 70.0 | Confirmed | Diego Zúñiga Sotomayor † | Bishop of Zamora, Spain |
| 13 Jan | 67.3 | Died | Antonio Albergati † | Bishop Emeritus of Bisceglie, Italy |
| 16 Jan | | Born | Francisco de Figueroa, O.S.A. † | | Bishop of Tropea, Italy |
| 23 Jan | 64.0 | Appointed | Diego Aduarte, O.P. † | Bishop of Nueva Segovia, Philippines |
| Appointed | Luis García Rodríguez † | Bishop of Orense, Spain | Bishop of Astorga, Spain |
| 28 Jan | 49.0 | Resigned | Fabio Lagonissa † | Apostolic Nuncio to Flanders, Belgium | Titular Patriarch of Antiochia {Antioch} |
| 29 Jan | 55.2 | Ordained Bishop | Cristóbal Guzmán Santoyo † | Bishop of Palencia, Spain |
| 51.8 | Ordained Bishop | Bartolomé Santos de Risoba † | Bishop of León, Spain | Bishop of Sigüenza, Spain |
| 30 Jan | | Born | Johann Hugo von Orsbeck † | | Archbishop of Trier, Germany |
| 31 Jan | | Appointed | Lorenzo Campeggi † | Apostolic Nuncio to Spain | Bishop of Senigallia, Italy |
| 39.7 | Resigned | Cesare Monti † | Apostolic Nuncio to Spain | Cardinal, Archbishop of Milano {Milan}, Italy |
| 6 Feb | 38.0 | Appointed | Ippolito Aldobrandini (Jr.) † | Cardinal, Cardinal-Deacon of Sant’Eustachio |
| 42.0 | Appointed | Francesco Boncompagni † | Cardinal-Priest of Santi Quattro Coronati | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 47.9 | Appointed | Marzio Ginetti † | Cardinal-Deacon of Sant’Angelo in Pescheria | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 52.2 | Appointed | Gregorio Naro † | Cardinal, Bishop of Rieti, Italy |
| 18 Feb | 22.1 | Professed | Juan de la Calle y Heredia, O. de M. † | Member of Order of Our Lady of Mercy | Bishop of Arequipa, Peru |
| 20 Feb | 40.1 | Appointed | Jean de Sponde † | Coadjutor Bishop of Pamiers, France | Bishop |
| 40.1 | Appointed | Jean de Sponde † | Titular Bishop of Megara | Bishop of Pamiers, France |
| Mar | 70.1 | Died | Mario Orsini † | Bishop of Tivoli, Italy |
| 1 Mar | 62.1 | Died | Juan Guzmán, O.F.M. † | Archbishop of Zaragoza, Spain |
| 4 Mar | 24.2 | Resigned | Nicolas François de Lorraine-Vaudémont † | Bishop-Elect of Toul, France | Former Bishop-Elect |
| 12 Mar | 52.3 | Ordained Bishop | Gregorio Naro † | Cardinal, Bishop of Rieti, Italy |
| 42.1 | Ordained Bishop | Eugene Sweeney † | Bishop of Kilmore, Ireland |
| 14 Mar | | Born | Jules Mascaron, C.O.I. † | | Bishop of Agen, France |
| 19 Mar | 56.2 | Ordained Bishop | Antonio Valdés Herrera † | Bishop of Mondoñedo, Spain | Bishop of Córdoba, Spain |
| 53.2 | Ordained Bishop | Benedikt Vinković † | Bishop of Pécs, Hungary | Bishop of Zagreb (Agram), Croatia |
| 22 Mar | 41.2 | Appointed | Giovanni Paolo Bucciarelli (Buccerelli) † | Bishop of Narni, Italy |
| 56.2 | Appointed | Loreto Di Franco (De Franchis) † | Bishop of Capri, Italy | Bishop of Minori, Italy |
| 62.4 | Appointed | Pedro Magarola Fontanet † | Bishop of Lérida, Spain |
| 26 Mar | 37.4 | Resigned | Alessandro Bichi † | Apostolic Nuncio to France | Cardinal, Bishop of Carpentras, France |
| 38.2 | Appointed | Giorgio (Gregorio) Bolognetti † | Apostolic Nuncio to France | Bishop Emeritus of Rieti, Italy |
| 56.2 | Ordained Bishop | Loreto Di Franco (De Franchis) † | Bishop of Capri, Italy | Bishop of Minori, Italy |
| 2 Apr | | Ordained Bishop | Antonio González Acevedo † | Bishop of Almería, Spain | Bishop of Coria, Spain |
| 46.2 | Appointed | Benedetto Ubaldi † | Bishop of Perugia, Italy | Cardinal, Bishop Emeritus |
| 3 Apr | 63.3 | Appointed | Antonio Arrigoni, O.F.M. Obs. † | Bishop of Ripatransone, Italy |
| 51.2 | Confirmed | Jacinto del Cerro, O.P. † | Bishop of Gaeta, Italy |
| Born | Pier Giulio Delfino † | | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia |
| Confirmed | Nicolas de Grillier † | Bishop of Uzés, France |
| 37.2 | Appointed | Antonio Severoli † | Archbishop of Dubrovnik (Ragusa), Croatia | Archbishop Emeritus |
| 50.2 | Appointed | Cosimo de Torres † | Cardinal, Archbishop of Monreale, Italy |
| 17 Apr | 63.3 | Ordained Bishop | Antonio Arrigoni, O.F.M. Obs. † | Bishop of Ripatransone, Italy |
| 37.2 | Ordained Bishop | Antonio Severoli † | Archbishop of Dubrovnik (Ragusa), Croatia | Archbishop Emeritus |
| 18 Apr | 41.2 | Ordained Bishop | Giovanni Paolo Bucciarelli (Buccerelli) † | Bishop of Narni, Italy |
| 51.2 | Ordained Bishop | Jacinto del Cerro, O.P. † | Bishop of Gaeta, Italy |
| 23 Apr | | Ordained Bishop | Pablo Durán † | Bishop of Urgell, Spain |
| 46.3 | Ordained Bishop | Benedetto Ubaldi † | Bishop of Perugia, Italy | Cardinal, Bishop Emeritus |
| May | 41.4 | Ordained Bishop | Eustache de Chery † | Titular Bishop of Philadelphia in Arabia | Bishop Emeritus of Nevers, France |
| 14 May | | Born | Jean de Gaillard de Longjumeau † | | Bishop of Apt, France |
| 19 May | 62.3 | Installed | Pedro da Silva Sampaio † | Bishop of São Salvador da Bahia de Todos os Santos, Brazil |
| 21 May | 70.1 | Ordained Bishop | Domingo Cano de Haro, O.P. † | Bishop of Cádiz, Spain |
| 23 May | 42.3 | Selected | Christophe de France † | Bishop of Saint-Omer, France |
| 31 May | 59.4 | Died | Cosimo Mannucci † | Bishop of Terni, Italy |
| Jun | | Born | Marino Giovanni Zorzi (Giorgi) † | | Bishop of Brescia, Italy |
| 4 Jun | 65.4 | Died | Luca Antonio Virili † | Cardinal, Cardinal-Priest of San Salvatore in Lauro |
| 41.2 | Ordained Deacon | Franz Wilhelm von Wartenberg † | Deacon | Cardinal, Bishop of Regensburg, Germany |
| 10 Jun | 23.5 | Ordained Priest | Alexander Dirre † | Priest of Olomouc (Olmütz), Czechia | Auxiliary Bishop |
| 11 Jun | 51.4 | Ordained Bishop | Andrzej Szołdrski † | Bishop of Kyiv (Kijów), Ukraine | Bishop of Poznań, Poland |
| 12 Jun | | Appointed | Dominici de Grammatica † | Bishop of Andros, Greece |
| 61.4 | Appointed | Stanisław Łoza † | Titular Bishop of Argos | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| 61.4 | Confirmed | Stanisław Łoza † | Auxiliary Bishop of Lutsk (Łuck), Ukraine |
| 56.4 | Appointed | Stanislaw Nieborski † | Auxiliary Bishop of Vilnius, Lithuania |
| 56.4 | Appointed | Stanislaw Nieborski † | Titular Bishop of Methone | Auxiliary Bishop of Vilnius, Lithuania |
| 18 Jun | | Ordained Bishop | Henri Listolfi Maroni † | Bishop of Bazas, France |
| 56.4 | Ordained Bishop | Stanislaw Nieborski † | Titular Bishop of Methone | Auxiliary Bishop of Vilnius, Lithuania |
| 24 Jun | 45.4 | Resigned | Giovanni Delfino † | Bishop of Belluno, Italy | Bishop Emeritus |
| Appointed | Costantino de Rossi, C.R.S. † | Bishop of Cefalonia e Zante, Greece | Bishop of Krk (Veglia), Croatia |
| 26 Jun | 52.4 | Appointed | Giovanni Jovanczyi † | Bishop of Knin (Tinin), Croatia |
| 55.4 | Appointed | Giovanni Tommaso Malloni (Mallono), C.R.S. † | Bishop of Belluno, Italy |