Date | Age | Event | Bishop | Title | Current Title |
unknown | | Born | Musa al-Akkari † | | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| Died | Astorge Aimeri (Aimery, Almarici) † | Archbishop of Vienne, France |
| Born | Andrea Aloisi † | | Bishop of Montemarano, Italy |
| Resigned | Amalricus † | Bishop of Vaison, France | Bishop Emeritus |
| Died | Giacomo Vittorio Appiani † | Bishop of Gravina (di Puglia), Italy |
| Died | Bartolomeo , O.S.B. † | Archbishop of Benevento, Italy |
| Died | Benedictus , O.S.B. † | Titular Archbishop of Mitylene |
| Died | Benedetto , O.E.S.A. † | Bishop of Dragonara, Italy |
| Born | Jean Bertrand † | | Cardinal, Administrator of Sens, France |
| Died | Tommaso de Bitonto, O.F.M. † | Bishop of Lesina, Italy |
| Resigned | Paul de Bonifacio † | Bishop of Ajaccio, France | Bishop Emeritus |
| Died | Corrado Capece † | Archbishop of Benevento, Italy |
| Died | Luigi Caracciolo † | Bishop of Potenza, Italy |
| Born | Marco Cornaro † | | Cardinal, Cardinal-Bishop of Palestrina |
| Died | Pietro del Carretto † | Bishop of Alba (Pompea), Italy |
| Died | Tommaso Piccolomini (della Testa) † | Bishop of Pienza e Montalcino, Italy |
| Died | Giacomo di Santa Lucia, O.F.M. † | Bishop of Patti, Italy |
| Born | Giovanni Pietro Ferretti † | | Bishop Emeritus of Lavello, Italy |
| Died | Louis de Gaucourt † | Bishop of Amiens, France |
| Born | Łukasz Górka † | | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| Died | John † | Archbishop of Cashel, Ireland |
| Died | Silvestro de Labbro, O. Cist. † | Bishop of Camerino, Italy |
| Died | Antoine de Lautoin, O.S.B. † | Bishop of Saint-Flour, France |
| Born | Edward Lee † | | Archbishop of York, England, Great Britain |
| Died | Leonardo † | Bishop of Mottola (Motula), Italy |
| Died | Jean de Lévis † | Bishop of Lescar, France |
| Died | Barthelemy Lithuanus † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| Died | Antonio Maffei † | Bishop of Montepeloso, Italy |
| Born | Györgi Martinuzzi, O.S.P.P.E. † | | Cardinal, Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| Died | Joăo de Melo † | Archbishop of Braga, Portugal |
| Died | Antonio Moretti, O.P. † | Bishop of Alife, Italy |
| Died | Marc de Nona † | Bishop of Chiron, Greece |
| Died | Jean Ortigue † | Bishop of Apt, France |
| Died | Antonio Probi † | Bishop of Penne e Atri, Italy |
| Died | Nicolaus Protimus † | Archbishop of Athenai {Athens}, Greece |
| Died | Jean de Sirac (Siret), O. Cart. † | Bishop of Saint-Paul-Trois-Châteaux, France |
| Born | Agostino Spínola † | | Cardinal, Administrator of Savona, Italy |
| Died | Giovanni di Renzo de Tonsis, O.F.M. † | Bishop of Fano, Italy |
| Died | William Tullock † | Bishop of Moray, Scotland, Great Britain |
| Died | Paolo de Turculis † | Bishop of Conversano, Italy |
| Resigned | Jacopo Vannucci † | Bishop of Perugia, Italy | Bishop Emeritus |
| Died | Gonzalo de Vivero † | Bishop of Salamanca, Spain |
| Appointed | RIchard Wycherley, O.P. † | Auxiliary Bishop of Worcester, England, Great Britain |
| Died | André Zamonetic, O.P. † | Archbishop Emeritus of Craina, Albania |
Jan | 59.0 | Died | Jacques d’Espinay-Durestal † | Bishop Emeritus of Rennes, France |
5 Jan | | Died | Nikolaus von Pentz † | Bishop of Schwerin, Germany |
7 Jan | | Appointed | Lionel Wydville (Woodville) † | Bishop of Salisbury, England, Great Britain |
13 Jan | | Ordained Bishop | Donato de Giorgi, O.P. † | Bishop of Trebinje e Mrkan, Bosnia and Herzegovina |
17 Jan | 80.0 | Died | Rudolf von Rüdesheim † | Bishop of Wrocław (Breslau), Poland |
22 Jan | | Died | Heinrich Unkel, O.F.M. † | Auxiliary Bishop-Elect of Köln {Cologne}, Germany |
30 Jan | | Appointed | Vincenzo Galeotti (Galeota) † | Bishop of Squillace, Italy | Administrator of Capaccio, Italy |
| Appointed | Colantonio Lentulo (Lentucci) † | Bishop of Rapolla, Italy |
| Appointed | Hermann von Rethem, O.P. † | Auxiliary Bishop of Bremen (and Hamburg), Germany |
| Appointed | Hermann von Rethem, O.P. † | Titular Bishop of Sebaste in Palaestina | Auxiliary Bishop of Bremen (and Hamburg), Germany |
8 Feb | | Appointed | Stabilis Zarrilo † | Bishop of Carinola (Calina), Italy |
12 Feb | 89.1 | Died | Vilém z Kolína (Polonia), O.S.A. † | Auxiliary Bishop of Olomouc (Olmütz), Czechia |
16 Feb | | Died | Joăo Gomes de Abreu † | Bishop of Viseu, Portugal |
55.2 | Selected | Johann Roth von Wemding † | Bishop of Wrocław (Breslau), Poland |
4 Mar | 55.2 | Confirmed | Johann Roth von Wemding † | Bishop of Wrocław (Breslau), Poland |
7 Mar | | Born | Tomás de San Martín, O.P. † | | Bishop of La Plata o Charcas, Bolivia |
11 Mar | | Appointed | Masellus de Duria † | Bishop of Lesina, Italy |
20 Mar | 25.2 | Appointed | Julius Caesar Cantelmi † | Bishop of Montepeloso, Italy | Bishop Emeritus |
| Appointed | Martin de Segonis † | Bishop of Dulcigno (Olcini, Olgun), Montenegro |
22 Mar | 42.2 | Selected | Melchior von Meckau † | Coadjutor Bishop of Brixen {Bressanone}, Italy | Cardinal, Bishop |
29 Mar | | Appointed | Michel Guibé † | Bishop of Rennes, France |
| Appointed | Thomas James † | Bishop of Dol, France |
| Appointed | Alain Le Maout † | Bishop of Saint-Pol-de-Léon, France | Bishop of Quimper, France |
27.2 | Appointed | Thaddeus McCarthy † | Bishop of Ross, Ireland | Bishop of Cork and Cloyne, Ireland |
31 Mar | | Appointed | János Vitéz † | Bishop of Sirmio (Srijem; Sirmium), Croatia | Bishop of Veszprém, Hungary |
Apr | 52.2 | Appointed | Ferry de Clugny † | Cardinal-Priest of Santa Maria in Domnica | Cardinal, Bishop of Tournai {Doornik}, Belgium |
14 Apr | 265.2 | Canonized | St. Bonaventura (Giovanni) , O.F.M. † | Cardinal, Cardinal-Bishop of Albano |
20 Apr | 42.3 | Confirmed | Melchior von Meckau † | Coadjutor Bishop of Brixen {Bressanone}, Italy | Cardinal, Bishop |
21 Apr | | Ordained Bishop | Paulus † | Bishop of Ardjisch (Argeș; Argesch), Romania |
| Ordained Bishop | Lionel Wydville (Woodville) † | Bishop of Salisbury, England, Great Britain |
26 Apr | | Appointed | Sulpicio Acquaviva d’Aragona † | Bishop of Bitetto, Italy | Bishop of Conversano, Italy |
54.3 | Appointed | Giovanni Battista de Giudici, O.P. † | Archbishop of Amalfi, Italy | Archbishop Emeritus |
| Appointed | Richard Martin † | Bishop of Saint David’s, Wales, Great Britain |
| Appointed | Giovanni Nicolini † | Titular Archbishop of Athenae | Archbishop Emeritus of Amalfi, Italy |
| Resigned | Giovanni Nicolini † | Archbishop of Amalfi, Italy | Archbishop Emeritus |
29 Apr | | Appointed | Giovanni Nicolini † | Archbishop (Personal Title) of Verdun, France | Archbishop Emeritus of Amalfi, Italy |
30 Apr | | Born | Luigi Cherigato (Chierepati), O.F.M. † | | Archbishop Emeritus of Bar (Antivari), Montenegro |
3 May | 27.3 | Ordained Bishop | Thaddeus McCarthy † | Bishop of Ross, Ireland | Bishop of Cork and Cloyne, Ireland |
6 May | 18.3 | Succeeded | Adalbert zu Sachsen † | Archbishop of Mainz, Germany | Archbishop-Elect |
7 May | 70.3 | Died | Dieter von Isenburg-Büdingen † | Archbishop of Mainz, Germany |
9 May | | Died | Jens Iversen Lange † | Bishop of Aarhus (Århus), Denmark |
21 May | 58.3 | Died | Konrad von Diepholz † | Bishop of Osnabrück, Germany |
22 May | 24.3 | Appointed | Jorge de Almeida † | Bishop of Coimbra, Portugal |
| Appointed | Garcia , O.S.B. † | Archbishop of Braga, Portugal |
| Appointed | Fernando Gonçalves de Miranda † | Bishop of Viseu, Portugal |
27 May | | Appointed | Genesius , O.S.B. † | Titular Archbishop of Mitylene |
29 May | | Appointed | Dionisio de Vanucci de Cortona † | Bishop of Perugia, Italy |
7 Jun | | Died | Reginald de Bourbon † | Archbishop of Narbonne, France |
10 Jun | | Died | Antoine Raguier † | Bishop of Lisieux, France |
11 Jun | | Ordained Bishop | William O’Ferral, O. Cist. † | Bishop of Ardagh (and Clonmacnois), Ireland |
13 Jun | | Appointed | Fabrizio Varano † | Bishop of Camerino, Italy |
17 Jun | | Appointed | Odon Ozic, O.S.A. † | Bishop of Vaison, France |
18 Jun | 22.4 | Selected | Georges d’Amboise (I) † | Archbishop of Narbonne, France | Cardinal, Archbishop of Rouen, France |
21 Jun | 48.4 | Appointed | André Byssmann, O.S.A. † | Auxiliary Bishop of Olomouc (Olmütz), Czechia |
48.4 | Appointed | André Byssmann, O.S.A. † | Titular Bishop of Nicopolis in Palaestina | Auxiliary Bishop of Olomouc (Olmütz), Czechia |
| Appointed | Pietro Palagario, O.F.M. † | Bishop of Lavello, Italy | Bishop of Telese o Cerreto Sannita, Italy |
25 Jun | 61.4 | Died | Jean Coeur † | Archbishop of Bourges, France |