Date | Age | Event | Bishop | Title | Current Title |
unknown | | Died | Francesco Arcamoni † | Bishop of Castellaneta, Italy |
| Born | Jean de Beauvau † | | Bishop Emeritus of Angers, France |
| Died | Grzegorz Buczkowski, O.P. † | Bishop of Lutsk (Łuck), Ukraine |
| Died | Giovanni Caracciolo † | Bishop of Frigento, Italy |
37.0 | Appointed | Juan Casanova, O.P. † | Bishop of Bosa, Italy | Cardinal, Administrator of Gerona, Spain |
| Born | Konrad von Diepholz † | | Bishop of Osnabrück, Germany |
| Died | Domenico Godani † | Bishop of Baleč (Balecio, Balezo), Albania |
| Appointed | John Greyby, O.F.M. † | Auxiliary Bishop of Ely, England, Great Britain |
| Died | Bertrando di Isola, O.F.M. † | Bishop of Aegina Insula, Greece |
| Resigned | Brynolf Karlsson † | Bishop of Skara, Sweden | Bishop Emeritus |
| Died | Giovanni di Leicester, O. Carm. † | Archbishop Emeritus of Smirne, Turkey | Auxiliary Bishop of Norwich, England, Great Britain |
| Died | Tamás Ludany, O. Cist. † | Bishop of Eger, Hungary |
44.0 | Appointed | Hugues of Lusignan † | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine | Priest |
| Died | Aragonio Malaspina † | Archbishop of Otranto, Italy |
| Appointed | Mark † | Bishop of Dromore, Ireland |
| Died | Arnaud de Mirepoix † | Bishop of Lombez, France |
| Ordained Priest | Silvester Pflieger † | Priest of Augsburg, Germany | Bishop of Chiemsee, Germany |
| Died | Girolamo de Pola † | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia |
| Resigned | David Prendergast (O’Brendog), O. Cist. † | Bishop of Clonmacnoise, Ireland | Bishop Emeritus |
| Died | Juan Ramírez de Guzmán † | Bishop of Ávila, Spain |
| Died | Philip Repington, C.R.S.A. † | Cardinal, Bishop Emeritus of Lincoln, England, Great Britain |
| Appointed | Lorenz von Lichtenberg † | Bishop of Lavant, Slovenia |
| Resigned | Nicholas Warter, O.F.M. † | Bishop of Dromore, Ireland | Bishop Emeritus |
10 Jan | 43.0 | Confirmed | Leonhard von Laiming † | Bishop of Passau, Germany |
| Appointed | Sirobaldo degli Ubaldi † | Bishop of Cittŕ di Castello, Italy | Bishop Emeritus |
25 Jan | | Selected | Philippe Morgan † | Archbishop of York, England, Great Britain | Bishop of Ely, England, Great Britain |
4 Feb | | Appointed | Balázs † | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
| Appointed | Donato da Brindisi, O.F.M. † | Bishop of Gallipoli, Italy |
11 Feb | 49.1 | Died | Johann Abezier † | Bishop of Warmia (Ermland), Poland |
14 Feb | | Appointed | Hugues Combarel † | Bishop of Poitiers, France |
54.1 | Appointed | Louis de Bar † | Administrator of Verdun, France | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| Appointed | Richard Fleming † | Archbishop of York, England, Great Britain | Bishop of Lincoln, England, Great Britain |
| Appointed | Guillaume de Montjoie † | Bishop of Béziers, France |
16 Feb | | Appointed | Diego Rapado † | Bishop of Tuy, Spain | Bishop of Oviedo, Spain |
27 Feb | 36.0 | Appointed | Peter von Schaumberg † | Cardinal, Bishop of Augsburg, Germany |
5 Mar | | Died | Jan z Wałdowa † | Bishop of Lebus, Germany |
26 Mar | | Died | Raymond de Bar † | Bishop of Montauban, France |
Apr | 59.2 | Appointed | Friedrich Deys (Theis von Thesingen) † | Bishop of Chiemsee, Germany |
12 Apr | | Appointed | Richard Belmer, O.P. † | Bishop of Achonry, Ireland |
| Appointed | Zanone Castiglione † | Bishop of Lisieux, France | Bishop of Bayeux, France |
74.2 | Resigned | Branda Castiglione † | Administrator of Lisieux, France | Cardinal, Cardinal-Bishop of Sabina |
| Appointed | Raone , O.F.M. † | Bishop of Polignano (Polinianum), Italy |
| Appointed | Matteo della Scaglia, O.E.S.A. † | Bishop of Bova, Italy |
14 Apr | | Appointed | Franz Kuhschmalz † | Bishop of Warmia (Ermland), Poland |
May | | Resigned | Johann von Hoya † | Bishop of Hildesheim, Germany | Bishop Emeritus |
3 May | | Ordained Bishop | Renaud de Fontaines † | Bishop of Soissons, France |
5 May | | Appointed | Péter Rozgonyi † | Bishop of Veszprém, Hungary | Bishop of Eger, Hungary |
10 May | | Appointed | Siegried Bock † | Bishop of Kammin (Camin), Germany |
| Appointed | Jean d’Harcourt † | Bishop of Amiens, France | Titular Patriarch of Alexandria {Alessandria} |
| Appointed | Pandolfe de Malatesta † | Archbishop of Patrae Veteres (Patras), Greece |
50.3 | Appointed | Philibert de Montjeu † | Bishop of Coutances, France |
33.8 | Appointed | Magnus von Sachsen-Lauenburg † | Coadjutor Bishop of Hildesheim, Germany | Bishop Emeritus |
12 May | | Died | Johann von Hoya † | Bishop Emeritus of Hildesheim, Germany |
| Died | Hartmann Munch † | Bishop of Basel, Switzerland |
33.8 | Succeeded | Magnus von Sachsen-Lauenburg † | Bishop of Hildesheim, Germany | Bishop Emeritus |
14 May | 59.3 | Died | Johannes Abundi † | Archbishop of Riga, Latvia |
16 May | 34.3 | Installed | Louis Aleman, C.R.S.J. † | Archbishop of Arles, France | Cardinal, Administrator |
23 May | | Appointed | Ulrik Stygge † | Bishop of Aarhus (Århus), Denmark |
24 May | | Appointed | Francesco da Scutari, O.F.M. † | Bishop of Dulcigno (Olcini, Olgun), Montenegro |
| Appointed | Nicola Wallibassa † | Bishop of Drivasto (Drivost), Albania | Bishop Emeritus |
28 May | | Died | Juan Rodríguez Villalón † | Bishop of León, Spain |
3 Jun | | Ordained Bishop | Antonio Guidotti † | Bishop of Conversano, Italy |
4 Jun | | Ordained Bishop | Richard Belmer, O.P. † | Bishop of Achonry, Ireland |
| Died | Alain de Kerazred (de la Rue) † | Bishop of Saint-Brieuc, France |
5 Jun | | Appointed | Gérard de Faidit † | Bishop of Montauban, France | Bishop of (Saint-Lizier de) Couserans (or Conserans), France |
| Appointed | Sigge Udsson † | Bishop of Skara, Sweden |
28 Jun | | Appointed | Guillaume de Goyon † | Bishop of Luçon, France |
| Appointed | Bernard de La Roche Fontenilles (Carbonet de Riez), O.F.M. † | Bishop of Cavaillon, France | Bishop of Montauban, France |
| Appointed | Elias Martinelli, O.S.B. † | Titular Archbishop of Myra |
| Appointed | Andrea de Palearia † | Archbishop of Amalfi, Italy |
7 Jul | | Appointed | Guillaume Brillet † | Bishop of Saint-Brieuc, France | Bishop Emeritus of Rennes, France |
| Appointed | Giacomo Buccii † | Bishop of Spoleto, Italy |
| Appointed | Giacomo de Camplo (Turco) † | Bishop of Carpentras, France |
| Appointed | Francesco de Tedallinis, O.F.M. † | Bishop of Aquino, Italy |
14 Jul | | Appointed | Pietro Amaury di Lordat † | Titular Patriarch of Alexandria {Alessandria} |
| Appointed | Marino de’ Bernardini, O.S.A. † | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia | Archbishop of Corfů, Greece |
| Appointed | Giovanni Contarini † | Titular Patriarch of Constantinople |
28 Jul | | Appointed | Alfonso de Cusanca, O.P. † | Bishop of León, Spain |
| Appointed | Álvaro Pérez Barreguín † | Bishop of Orense, Spain |
11 Aug | | Died | Pietro Morosini (Jr.) † | Cardinal, Cardinal-Deacon of Santa Maria in Domnica |
16 Aug | | Appointed | Gaspare de Rossi, O.S.B. † | Bishop of Frigento, Italy |
1 Sep | | Appointed | Michele Paoli † | Bishop of Baleč (Balecio, Balezo), Albania | Bishop of Drivasto (Drivost), Albania |
20 Sep | | Appointed | Jean de Fortou † | Bishop of Pamiers, France | Bishop of Tarbes, France |
4 Oct | | Died | Otto von Hoya † | Bishop of Münster, Germany |
11 Oct | | Appointed | Nicolň de Antonio † | Bishop of Lacedonia, Italy |
| Appointed | Domenico Moriconi, O.P. † | Bishop of Alessano, Italy |
34.7 | Appointed | Krzysztof von Rotenhan † | Bishop of Lebus, Germany |
13 Oct | | Appointed | Ludovico , O.S.B. † | Bishop of Nona (Nin), Croatia |
| Appointed | Henning Scharpenberg † | Archbishop of Riga, Latvia |
| Appointed | Nicola da Treviso, O.F.M. † | Archbishop (Personal Title) of Thermopylae, Greece | Bishop |
27 Oct | | Died | Nicholas Bubbewyth † | Bishop of Bath and Wells, England, Great Britain |
| Appointed | Bartolomeo di Stefano † | Bishop of Castellaneta, Italy |
31 Oct | | Selected | Heinrich von Moers † | Bishop of Münster, Germany |
5 Nov | | Appointed | Giovanni Buondelmonti † | Archbishop of Kalocsa, Hungary |
17 Nov | | Died | Gottschalk Schutte, O.T. † | Bishop of Curland, Latvia |
20 Nov | | Died | Franceschino Fauzone † | Bishop of Mondovi, Italy |
1 Dec | | Appointed | Nicolň Pagano † | Archbishop of Otranto, Italy |
11 Dec | | Appointed | Francesco de Aiello † | Archbishop of Bari (-Canosa), Italy |
56.9 | Appointed | Giacomo Balardi Arrigoni, O.P. † | Bishop of Urbino, Italy |
| Appointed | Marino Carnota † | Bishop of Trieste, Italy |
| Appointed | John de Crannach † | Bishop of Caithness, Scotland, Great Britain | Bishop of Brechin, Scotland, Great Britain |
74.9 | Appointed | Antonio Panciera † | Administrator of Equilio (Jesolo), Italy | Cardinal, Cardinal-Bishop of Frascati |
| Appointed | Angelo Scardoni, O.E.S.A. † | Bishop of Todi, Italy | Bishop Emeritus |
| Appointed | Tommaso Tomassini (Paruta), O.P. † | Bishop of Trogir (Traů), Croatia | Bishop of Belluno e Feltre, Italy |
18 Dec | | Appointed | John Stafford † | Bishop of Bath and Wells, England, Great Britain | Archbishop of Canterbury, England, Great Britain |
| Appointed | Pietro Zen, O.P. † | Bishop of Arkadi, Greece |
22 Dec | | Appointed | Diego Gómez de Fuensalida † | Bishop of Ávila, Spain |
23 Dec | | Appointed | Francesco Lando † | Cardinal, Cardinal-Bishop of Sabina |