Date | Age | Event | Bishop | Title | Current Title |
unknown | | 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 | | 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 |