Date | Age | Event | Bishop | Title | Current Title |
unknown | | Appointed | Howel ap Ednevet † | Bishop of Saint Asaph, Wales, Great Britain |
| Born | Peter von Aspelt † | | Archbishop of Mainz, Germany |
| Born | Antony Beck † | | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| Born | Bl. Niccolò Boccasini, O.P. † | | Pope (Roma {Rome}, Italy) |
| Appointed | Sigebaldo Caballazio † | Bishop of Padova {Padua}, Italy | Bishop of Novara, Italy |
| Appointed | Fouques de Caille † | Bishop of Riez, France |
| Born | Bernard de Castanet † | | Cardinal, Bishop of Le Puy-en-Velay, France |
| Appointed | Pierre Charlot † | Bishop of Noyon, France |
| Ordained Bishop | Pierre Charlot † | Bishop of Noyon, France |
| Appointed | William de Christchurch † | Bishop of Llandaff, Wales, Great Britain | Bishop Emeritus |
| Born | Andrea Conti, O.F.M. † | | Priest of Order of Friars Minor |
| Appointed | Domenico † | Bishop of Bitonto, Italy | Bishop of Mileto, Italy |
| Resigned | Enrico della Fratta † | Bishop of Bologna, Italy | Bishop Emeritus |
| Appointed | Galeran † | Bishop of Nantes, France |
| Born | Jan Gerbicz † | | Bishop of Poznań, Poland |
| Born | Rodrigo Gudal, O.F.M. † | | Bishop of Marrakesh, Morocco |
| Died | Hugh , O.P. † | Bishop of Saint Asaph, Wales, Great Britain |
| Appointed | Johannes † | Bishop of Schleswig, Germany |
| Born | Henrich von Klingenberg † | | Bishop of Konstanz {Constance}, Germany |
| Appointed | Robert Le Cornu † | Bishop of Nevers, France |
| Ordained Bishop | Robert Le Cornu † | Bishop of Nevers, France |
| Died | Nikulás † | Bishop of Garðar, Greenland |
| Died | Nehemiah O’Bragan, O. Cist. † | Bishop of Clogher, Ireland |
| Appointed | David O’Bragan, O. Cist. † | Bishop of Clogher, Ireland |
| Appointed | Alan O’Sullivan † | Bishop of Cloyne, Ireland | Bishop of Lismore, Ireland |
| Ordained Bishop | Alan O’Sullivan † | Bishop of Cloyne, Ireland | Bishop of Lismore, Ireland |
| Appointed | Giocondo Paladini † | Archbishop of Otranto, Italy |
| Born | Philipp von Rathsamhausen † | | Bishop of Eichstätt, Germany |
| Appointed | Albert Suerber, O.P. † | Archbishop of Armagh, Ireland | Archbishop of Riga, Latvia |
| Appointed | Thorkill † | Bishop of Reval (Rewel), Estonia |
| Appointed | Michel Villoiseau † | Bishop of Angers, France |
| Appointed | Konrad von Wallhausen † | Bishop of Meißen (Meissen), Germany |
| Appointed | Rudolf von Webau † | Bishop of Merseburg, Germany |
22 Jan | | Ordained Bishop | David de Berhnam † | Bishop of Saint Andrews, Scotland, Great Britain |
21 Feb | 27.1 | Appointed | Ottaviano Ubaldini † | Administrator of Bologna, Italy | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
Mar | | Died | Nicolas de Roye † | Bishop of Noyon, France |
6 Mar | | Appointed | Mátyás (Rátót) † | Archbishop of Esztergom, Hungary |
31 Mar | | Died | Paweł † | Bishop of Poznań, Poland |
4 Apr | | Died | Wesselin † | Bishop of Reval (Rewel), Estonia |
1 May | | Died | Ekkehard Rabil † | Bishop of Merseburg, Germany |
70.3 | Died | Jacques de Vitry, C.R.S.A. † | Cardinal, Cardinal-Bishop of Frascati |
13 May | | Died | Elias of Radnor † | Bishop of Llandaff, Wales, Great Britain |
20 May | | Appointed | Egnone di Appiano † | Bishop of Brixen {Bressanone}, Italy | Bishop of Trento, Italy |
29 May | | Appointed | Juan Domínguez de Medina † | Bishop of Burgos, Spain |
6 Jun | | Appointed | Raynaldo Aquaviva † | Bishop of Agrigento (Girgenti), Italy |
24 Jun | | Died | Heinrich † | Bishop of Meißen (Meissen), Germany |
1 Jul | | Ordained Bishop | Hugh Pateshull † | Bishop of Coventry and Lichfield, England, Great Britain |
6 Jul | | Died | Henri de Dreux † | Archbishop of Reims, France |
13 Jul | | Died | Attone † | Bishop of Bergamo, Italy |
22 Jul | | Appointed | Ferrer de Pallarés o de San Martín † | Bishop of Valencia, Spain |
3 Aug | | Appointed | Robert de Thourotte † | Bishop of Liège, Belgium |
9 Aug | | Died | Rostan de Sabran † | Bishop of Riez, France |
24 Aug | | Appointed | Peter d’Aigueblanche † | Bishop of Hereford, England, Great Britain |
31 Aug | | Died | Guillaume de Beaumont † | Bishop of Angers, France |
8 Sep | | Appointed | Rinaldo † | Bishop of Osimo, Italy | Bishop of Recanati, Italy |
12 Sep | | Died | Hugues † | Bishop of Sées {Séez}, France |
| Died | Bernhard Kaplíř ze Sulevic (Buchard) † | Bishop of Praha, Czechia |
30 Sep | | Ordained Bishop | Albert Suerber, O.P. † | Archbishop of Armagh, Ireland | Archbishop of Riga, Latvia |
10 Oct | | Appointed | Durand † | Bishop of Limoges, France |
12 Oct | | Ordained Bishop | Ferrer de Pallarés o de San Martín † | Bishop of Valencia, Spain |
17 Oct | | Died | Robert von England, O. Cist. † | Bishop of Olomouc (Olmütz), Czechia |
4 Nov | | Ordained Bishop | Howel ap Ednevet † | Bishop of Saint Asaph, Wales, Great Britain |
16 Nov | | Died | Edmund Rich † | Archbishop of Canterbury, England, Great Britain |
23 Dec | | Ordained Bishop | Peter d’Aigueblanche † | Bishop of Hereford, England, Great Britain |