| Date | Age | Event | Bishop | Title | Current Title | 
|---|
| unknown | 58.0 | Died | John Baptist Abessinus † | Bishop of Holy Savior of Nicosia (Ethiopian), Cyprus | 
|  | Resigned | Giovanni D’Amato † | Bishop of Minori, Italy | Bishop Emeritus | 
|  | Died | Jan Andruszewicz † | Bishop of Lutsk (Łuck), Ukraine | 
|  | Born | Marius Antonini † |  | Auxiliary Bishop of Albano, Italy | 
|  | Died | Giovanni Antonio Astorch (Astorco) † | Bishop of Lettere (-Gragnano), Italy | 
|  | Ordained Bishop | Fernando de Barrionuevo, O.F.M. Obs. † | Bishop of Santiago de Chile | 
| 43.2 | Resigned | Charles Bourbon de Vendôme † | Administrator of Carcassonne, France | Cardinal, Archbishop of Rouen, France | 
|  | Born | Etienne de Brito, S.J. † |  | Archbishop of Cranganore (Angamala), India | 
|  | Born | Bonifazio Caetani † |  | Cardinal, Archbishop of Taranto, Italy | 
| 55.4 | Resigned | Ippolito Capilupi † | Bishop of Fano, Italy | Bishop Emeritus | 
|  | Born | Pedro Carranza Salinas, O. Carm. † |  | Bishop of Buenos Aires, Argentina | 
|  | Born | Ascanio Castagna † |  | Bishop of Isola, Italy | 
| 56.5 | Resigned | Giovanni Battista Cicala (Cicada) † | Administrator of Sagone (Sagona), France | Cardinal, Cardinal-Bishop of Sabina | 
|  | Resigned | Antonius Lucurri (Cogorno), O.P. † | Auxiliary Bishop of Parma, Italy | Bishop Emeritus of Brugnato, Italy | 
|  | Born | Diego Correia (Carreia) Valente, S.J. † |  | Bishop of Funay (Funai), Japan | 
| 41.0 | Died | Nicolas Dangu † | Bishop of Mende, France | 
| 39.7 | Appointed | Zaccaria Delfino † | Administrator of Győr (Raab), Hungary | Cardinal, Bishop Emeritus of Hvar (Lesina), Croatia | 
|  | Born | Juan del Valle y Arredondo, O.S.B. † |  | Bishop Emeritus of Guadalajara, Jalisco, México | 
| 57.3 | Resigned | Ippolito d’Este (II) † | Administrator of Arles, France | Cardinal, Bishop Emeritus of Novara, Italy | 
| 34.0 | Resigned | Andrija Dudić (Dudith Sbardellati) † | Bishop of Pécs, Hungary | Bishop Emeritus | 
|  | Born | Matthaeus Erasmos, O.P. † |  | Archbishop of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia | 
| 88.6 | Died | Galeazzo Florimonte † | Bishop Emeritus of Sessa Aurunca, Italy | 
|  | Died | Cesare Foggia † | Bishop of Umbriatico (Umbriaticum), Italy | 
|  | Appointed | Gabriel-Elie  † | Bishop of Gazireh (Gezira) (Chaldean), Turkey | 
|  | Ordained Bishop | Gabriel-Elie  † | Bishop of Gazireh (Gezira) (Chaldean), Turkey | 
|  | Born | Ottaviano Garzadori † |  | Archbishop Emeritus of Zadar (Zara), Croatia | 
|  | Born | Baccio Gherardini † |  | Bishop of Fiesole, Italy | 
|  | Ordained Bishop | Jean Grenon † | Bishop of Grasse, France | 
|  | Born | Kasper Hap † |  | Auxiliary Bishop of Poznań, Poland | 
|  | Born | Lorenzo Landi † |  | Bishop of Fossombrone, Italy | 
|  | Resigned | Gaspar de Leăo Pereira † | Archbishop of Goa, India | 
|  | Born | Francisco López de Mendoza † |  | Bishop of Perpignan-Elne, France | 
|  | Died | Ebed-Jesu Maron † | Patriarch of Babylon {Babilonia} (Chaldean), Iraq | 
| 18.0 | Professed | Fernando Mendoza González † | Member of Society of Jesus | Bishop of Cuzco, Peru | 
|  | Appointed | Francisco Mejía de Molina, O.P. † | Auxiliary Bishop of Sigüenza, Spain | 
| 80.0 | Resigned | Vincenzo Negusanti † | Bishop of Arbe (Rab), Croatia | Bishop Emeritus | 
|  | Resigned | Antonio Numai † | Bishop of Isernia, Italy | Bishop Emeritus | 
|  | Ordained Bishop | Burchard Oberg † | Bishop of Hildesheim, Germany | 
|  | Born | Ambrogio Palumbo, O.P. † |  | Bishop of Vieste, Italy | 
|  | Born | Marco Pasqualigo † |  | Bishop of Cefalonia e Zante, Greece | 
|  | Born | Francisco Pereira, O.S.A. † |  | Bishop of Miranda (do Douro), Portugal | 
|  | Born | Marcello Pignatelli, C.R. † |  | Bishop of Jesi, Italy | 
| 16.1 | Appointed | Heinrich von Sachsen-Lauenburg † | Archbishop of Bremen (and Hamburg), Germany | Archbishop-Elect | 
|  | Born | Francesco Sacrati † |  | Cardinal, Bishop of Cesena, Italy | 
|  | Died | Benedetto Salino † | Bishop of Veroli, Italy | 
|  | Died | Alfonso de Sásamo (Somario), O.S.B. † | Bishop Emeritus of Capri, Italy | 
| 27.3 | Ordained Priest | Cesare Speciano (Speciani) † | Priest of Milano {Milan}, Italy | Bishop of Cremona, Italy | 
|  | Born | Tegrimus Tegrimi † |  | Bishop of Assisi, Italy | 
| 36.0 | Appointed | Vitellozzo Vitelli † | Administrator of Carcassonne, France | Cardinal, Bishop Emeritus of Cittŕ di Castello, Italy | 
| 77.0 | Died | Mikołaj Wolski † | Bishop of Włocławek (Kujawy, Kalisze), Poland | 
|  | Born | Johannes Wyszemierski † |  | Auxiliary Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania | 
|  | Appointed | Yab-Alaba  † | Patriarch of Babylon {Babilonia} (Chaldean), Iraq | 
| 6 Jan |  | Ordained Bishop | Bertrando de Romanis † | Bishop of Fréjus, France | 
| 8 Jan |  | Appointed | Juan Ayora † | Bishop of Oviedo, Spain | 
| 9 Jan | 55.0 | Died | Nicola Maria Caracciolo † | Bishop of Catania, Italy | 
| 21.1 | Selected | Hermann von Schaumberg † | Bishop of Minden, Germany | Former Bishop-Elect | 
| 12 Jan | 45.0 | Ordained Bishop | Felice Peretti Montalto, O.F.M. Conv. † | Bishop of Sant’Agata de’ Goti, Italy | Pope (Roma {Rome}, Italy) | 
| 13 Jan |  | Appointed | Gonzalo de Solórzano † | Bishop of Mondońedo, Spain | Bishop of Oviedo, Spain | 
|  | Appointed | Henrique de Távora e Brito, O.P. † | Bishop of Cochin, India | Archbishop of Goa, India | 
|  | Appointed | Jorge Temudo, O.P. † | Archbishop of Goa, India | 
|  | Appointed | Fernando Vellosillo Barrio † | Bishop of Lugo, Spain | 
| 21 Jan |  | Died | Veit von Fraunberg † | Bishop of Regensburg, Germany | 
| 24 Jan |  | Appointed | Matteo Andrea Guerra † | Bishop of Fondi (Fundi), Italy | Bishop of San Marco (Argentano), Italy | 
|  | Appointed | Jerome de Leonibus † | Bishop of Sagone (Sagona), France | Archbishop of Chieti, Italy | 
|  | Appointed | Maurice MacBrien † | Bishop of Emly, Ireland | 
| 31 Jan |  | Appointed | Angelo Rossi † | Bishop of Alife, Italy | 
|  | Appointed | Francesco Rusticucci † | Bishop of Fano, Italy | 
| 6 Feb | 31.0 | Selected | David Kölderer von Burgstall † | Bishop of Regensburg, Germany | 
| 7 Feb | 55.7 | Appointed | Gregorio Boldrini, O.P. † | Bishop of Mantova, Italy | 
| 9 Feb | 47.1 | Ordained Bishop | Antonio Avendańo y Paz, O.F.M. Obs. † | Bishop of La Imperial, Chile | Bishop of Quito, Ecuador | 
|  | Ordained Bishop | Matteo Andrea Guerra † | Bishop of Fondi (Fundi), Italy | Bishop of San Marco (Argentano), Italy | 
|  | Ordained Bishop | Jerome de Leonibus † | Bishop of Sagone (Sagona), France | Archbishop of Chieti, Italy | 
| 10 Feb | 57.1 | Died | Johann von Leyen † | Archbishop-Elect of Trier, Germany | 
| 17 Feb |  | Appointed | Paolo Oberti, O.P. † | Bishop of Venosa, Italy | 
| 21 Feb | 36.1 | Appointed | Eberhard von Holle † | Apostolic Administrator of Verden, Germany | Former Bishop-Elect of Lübeck, Germany | 
| 24 Feb |  | Ordained Bishop | Paolo Oberti, O.P. † | Bishop of Venosa, Italy | 
| 26 Feb | 53.1 | Died | Moritz von Sandizell † | Bishop Emeritus of Freising, Germany | 
| 3 Mar | 32.1 | Appointed | Ińigo Avalos de Aragón, O.S. † | Cardinal-Priest of San Lorenzo in Lucina | Cardinal, Cardinal-Bishop of Porto e Santa Rufina | 
| 49.2 | Appointed | Fulvio Giulio della Corgna, O.S.Io.Hieros. † | Cardinal-Priest of Sant’Adriano al Foro | Cardinal, Cardinal-Bishop of Porto e Santa Rufina | 
|  | Appointed | Claude-André d’Ormy † | Bishop of Boulogne (-Sur-Mer), France | 
|  | Appointed | Francisco Tello Sandoval † | Bishop of Osma, Spain | Bishop of Plasencia, Spain | 
| 4 Mar | 85.1 | Died | Musa al-Akkari † | Patriarch of Antiochia {Antioch} (Maronite), Lebanon | 
| 10 Mar |  | Appointed | Pietro Bordone † | Bishop of Umbriatico (Umbriaticum), Italy | 
| 17 Mar |  | Appointed | Giovanni Battista Lomellino † | Bishop of Isernia, Italy | 
|  | Appointed | Giovanni Battista Maremonti † | Auxiliary Bishop of Ravenna, Italy | Bishop of Sora, Italy | 
|  | Appointed | Giovanni Battista Maremonti † | Titular Bishop of Utica | Bishop of Sora, Italy | 
|  | Appointed | Anton Resch, O.P. † | Auxiliary Bishop of Würzburg, Germany | 
|  | Appointed | Anton Resch, O.P. † | Titular Bishop of Salona | Auxiliary Bishop of Würzburg, Germany | 
| 18 Mar |  | Died | Felice Rossi † | Bishop of Tropea, Italy | 
| 29 Mar | 41.2 | Elected | Mikhail Rizzi el-Bkoufani † | Patriarch of Antiochia {Antioch} (Maronite), Lebanon | 
| 31 Mar |  | Died | Thomas O’Fihely, O.E.S.A. † | Bishop of Leighlin, Ireland | 
| 6 Apr | 57.2 | Ordained Bishop | Giovanni Battista Serbelloni † | Bishop of Cassano all’Jonio, Italy | Bishop Emeritus | 
| 7 Apr | 57.2 | Selected | Jakob von Eltz † | Archbishop of Trier, Germany | 
| 9 Apr | 80.2 | Died | Matteo Griffoni (Grifonio) Pioppi, O.S.B. † | Bishop of Trivento, Italy | 
| 13 Apr | 55.9 | Ordained Bishop | Gregorio Boldrini, O.P. † | Bishop of Mantova, Italy | 
|  | Died | Teofilo Galluppi † | Bishop of Oppido Mamertina, Italy | 
| 18 Apr | 50.1 | Resigned | Luigi Cornaro † | Administrator of Trogir (Traů), Croatia | Cardinal, Archbishop Emeritus of Zadar (Zara), Croatia | 
|  | Appointed | Ascanio Marchesini † | Auxiliary Bishop of Parma, Italy | Bishop of Calvi Risorta, Italy | 
|  | Appointed | Ascanio Marchesini † | Titular Bishop of Maioren | Bishop of Calvi Risorta, Italy | 
|  | Appointed | Tommaso Sperandio Corbelli † | Bishop of Trogir (Traů), Croatia | Bishop of Bagnoregio (Bagnorea), Italy | 
| 28 Apr | 35.3 | Appointed | Matteo Barbabianca † | Bishop of Pula (Pola), Croatia | 
| 70.3 | Appointed | Fernando de Loaces (Loazes), O.P. † | Archbishop of Valencia, Spain | 
| 1 May |  | Ordained Bishop | Giuliano de’ Medici † | Bishop of Béziers, France | Bishop of Albi, France | 
| 6 May | 69.3 | Resigned | Rodrigo de Bastidas y Rodriguez de Romera † | Bishop of Puerto Rico (Porto Rico) | Bishop Emeritus | 
| 11 May |  | Ordained Bishop | Tommaso Sperandio Corbelli † | Bishop of Trogir (Traů), Croatia | Bishop of Bagnoregio (Bagnorea), Italy | 
| 19 May |  | Ordained Bishop | Ascanio Marchesini † | Titular Bishop of Maioren | Bishop of Calvi Risorta, Italy | 
| 21 May |  | Born | Cosimo della Gherardesca † |  | Bishop of Colle di Val d’Elsa, Italy | 
| 23 May |  | Appointed | Carlo Carafa † | Bishop of Guardialfiera (Guardia), Italy | Bishop of Boiano, Italy | 
|  | Appointed | Jean Paul de Selve † | Bishop of Saint-Flour, France | 
| 1 Jun |  | Ordained Bishop | Carlo Carafa † | Bishop of Guardialfiera (Guardia), Italy | Bishop of Boiano, Italy | 
| 4 Jun | 54.4 | Resigned | Philibert Babou de La Bourdaisičre † | Bishop of Angoulęme, France | Cardinal, Bishop Emeritus | 
|  | Appointed | Charles de Bony † | Bishop of Angoulęme, France | 
| 49.6 | Appointed | Giovanni Pietro Fortiguerra † | Auxiliary Bishop of Monreale, Italy | Bishop of Bitonto, Italy | 
| 49.6 | Appointed | Giovanni Pietro Fortiguerra † | Titular Bishop of Ceraunia | Bishop of Bitonto, Italy | 
|  | Appointed | Maurice MacGibbon, O. Cist. † | Archbishop of Cashel, Ireland | 
| 6 Jun |  | Born | Pellegrino Bertacchi † |  | Bishop of Modena, Italy | 
| 15 Jun |  | Ordained Bishop | Maurice MacGibbon, O. Cist. † | Archbishop of Cashel, Ireland |