| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | | Died | Adamo † | Bishop of Martirano (Martoranum), Italy |
| Appointed | Alduino † | Bishop of Malta |
| Born | Bálint Alsáni † | | Cardinal, Administrator of Pécs, Hungary |
| Died | Nicolas de Barro (Bar) † | Bishop of Mâcon, France |
| Died | Bartolomeo † | Archbishop of Manfredonia, Italy |
| Born | Dietrich Bayer von Boppard † | | Bishop of Metz, France |
| Died | Filippo Bencivenne, O.P. † | Bishop of Grosseto, Italy |
| Died | Benedek † | Bishop of Csanád, Hungary |
| Died | Bernardo † | Bishop of Rapolla, Italy |
| Died | Bernard , O.F.M. † | Bishop of Nîmes, France |
| 49.8 | Appointed | Pierre Bertrand (Sr.) † | Archbishop of Bourges, France | Cardinal, Cardinal-Priest of San Clemente |
| Died | Andrea Capograssi † | Bishop of Valva e Sulmona, Italy |
| Died | Henri de Carreto, O.F.M. † | Bishop of Lucca, Italy |
| Born | Dietrich Damerow † | | Bishop Emeritus of Dorpat (Tartu), Estonia |
| Appointed | Matteo d&drsquo;Atri, O.P. † | Titular Bishop of Aulon | Bishop of Polignano (Polinianum), Italy |
| Resigned | Miklós Dörögdi † | Archbishop-Elect of Esztergom, Hungary | Bishop of Eger, Hungary |
| Died | Roberto Drago, O.P. † | Bishop Emeritus of Ales (Uselli), Italy |
| Died | Arnold Eltz, O.P. † | Bishop of Kammin (Camin), Germany |
| Appointed | Enrico , O.F.M. † | Bishop of Isernia, Italy |
| Died | Fulco Falco, O.P. † | Bishop of Toulon, France |
| Appointed | Gaddo , O.P. † | Bishop of Stagno (Ston) et Curzola (Korcula), Croatia | Archbishop of Corfů, Greece |
| Appointed | Giacomo † | Titular Bishop of Sebaste in Cilicia | Bishop of Malta |
| Died | Michel MacLochlainn † | Bishop of Derry, Ireland |
| Died | Nicolas † | Archbishop of Cosenza, Italy |
| Died | Rodrigo de Oliveira † | Bishop of Lamego, Portugal |
| Appointed | Giovanni de Paolo † | Bishop of Sessa Aurunca, Italy |
| Died | Pietro † | Bishop of Isernia, Italy |
| Born | Pietro Pileo da Prata † | | Cardinal, Cardinal-Bishop of Frascati |
| Died | Pilfort de Rabastens, O.S.B. † | Cardinal, Cardinal-Priest of Sant’Anastasia |
| Entered | Filippo Ruffini (Gezza), O.P. † | Member of Order of Friars Preachers | Cardinal, Bishop of Tivoli, Italy |
| Born | Eleazario da Sabran † | | Cardinal, Major Penitentiary of the Apostolic Penitentiary |
| Appointed | Jean de Salagny † | Bishop of Mâcon, France |
| Died | Tyge † | Bishop of Viborg, Denmark |
| Died | Guillaume de Villeneuve (Franchi), O.F.M. † | Bishop of Trieste, Italy |
| 40.0 | Appointed | Konrad von Liechtenstein † | Bishop of Chiemsee, Germany |
| Born | Francisco Jiménez (Ximenes), O.F.M. † | | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| Jan | | Died | Raymond Bot † | Bishop of Apt, France |
| 3 Jan | | Appointed | Guillaume de Beaujeu † | Bishop of Bayeux, France |
| 5 Jan | | Appointed | John de Ballyconingham † | Bishop of Cork, Ireland |
| 19 Jan | | Appointed | Matteo d&drsquo;Atri, O.P. † | Bishop of Polignano (Polinianum), Italy |
| 26 Jan | | Appointed | Guglielmo Dulcini de Monte Albano, O.P. † | Bishop of Lucca, Italy |
| 30 Jan | | Appointed | Pierre de Moussy (Jean) † | Bishop of Carcassonne, France |
| Feb | | Ordained Bishop | Raymond d’Olargues † | Bishop of Vabres, France |
| 7 Feb | | Appointed | Giovanni da Firenze, O.P. † | Bishop of Tiflis, Georgia |
| 9 Feb | | Died | Paganello da Porcari † | Bishop of Lucca, Italy |
| 12 Feb | | Appointed | Bartolomeo , O. Carm. † | Bishop of Sulcis, Italy |
| 50.1 | Appointed | Angelo di Portasole (Portasola, Porta Sole, Porta Sola), O.P. † | Bishop of Grosseto, Italy |
| 23 Feb | | Died | Giacomo Matrizi † | Bishop of Sessa Aurunca, Italy |
| 11 Mar | | Ordained Bishop | Raymond de Montaigu † | Bishop of (Saint-Lizier de) Couserans (or Conserans), France | Bishop of Clermont, France |
| 14 Mar | | Appointed | Galgano Biagio di Firenze (Bocca di Bue), O.F.M. † | Bishop of Aleria, France | Bishop of Cefalů, Italy |
| Died | Roger Mortival † | Bishop of Salisbury, England, Great Britain |
| 23 Mar | | Appointed | Pietro di Dio, O. Cist. † | Bishop of Santa Giusta (Othoca), Italy |
| 24 Mar | | Died | Jean Hind † | Bishop of Roskilde (Roeskilde), Denmark |
| Apr | | Died | Amédée de Genčve † | Bishop of Toul, France |
| 16 Apr | | Appointed | Lorenzo † | Bishop of Salamanca, Spain |
| Appointed | Robert Wyvill † | Bishop of Salisbury, England, Great Britain |
| 24 Apr | | Died | Audfinn Sigurdsson † | Bishop of Bjřrgvin (Bergen), Norway |
| 30 Apr | | Ordained Bishop | Bartolomeo , O. Carm. † | Bishop of Sulcis, Italy |
| 4 May | | Appointed | Pietro Borbelli, O.F.M. † | Bishop of Valva e Sulmona, Italy |
| 18 May | | Appointed | Pax de Vedano, O.P. † | Bishop of Trieste, Italy |
| 25 May | | Appointed | Nicolň di Pietro Rainaldi † | Bishop of Carinola (Calina), Italy | Bishop of Valva e Sulmona, Italy |
| 1 Jun | | Appointed | Guiraud de Languisel † | Bishop of Apt, France | Bishop of Nîmes, France |
| 15 Jun | | Appointed | Jens Nyborg, O.P. † | Bishop of Roskilde (Roeskilde), Denmark |
| 18 Jun | | Appointed | Thomas de Bourlémont † | Bishop of Toul, France |
| 27 Jun | | Appointed | Giovanni , O.P. † | Archbishop of Otranto, Italy |
| Appointed | Orso Minutolo † | Archbishop of Salerno, Italy |
| Appointed | Arnaud Royardi, O.F.M. † | Archbishop (Personal Title) of Sarlat, France | Bishop |
| 2 Jul | | Ordained Bishop | Enrico , O.F.M. † | Bishop of Isernia, Italy |
| 15 Jul | | Ordained Bishop | Robert Wyvill † | Bishop of Salisbury, England, Great Britain |
| 22 Jul | | Ordained Bishop | Thomas de Bourlémont † | Bishop of Toul, France |
| 27 Jul | | Appointed | Giovanni di Vieri † | Bishop of Ales (Uselli), Italy |
| 31 Aug | | Appointed | Jacques Corvo, O.P. † | Bishop of Toulon, France |
| Appointed | Alain de Hailoury † | Bishop of Tréguier, France |
| Appointed | Yves Le Prévôt de Bois Boëssel † | Bishop of Quimper, France | Bishop of Saint-Malo, France |
| 17 Sep | | Appointed | Miklós Dörögdi † | Bishop of Eger, Hungary |
| Appointed | Friedrich von Eickstedt † | Bishop of Kammin (Camin), Germany | Bishop Emeritus |
| Appointed | Csanád de Telegdi † | Archbishop of Esztergom, Hungary |
| 28 Sep | | Appointed | Ferrier de Abella, O.P. † | Archbishop (Personal Title) of Mazara del Vallo, Italy | Bishop of Barcelona, Spain |
| 29 Sep | | Died | Ingerand de Créqui † | Bishop of Thérouanne, France |
| 30 Sep | | Ordained Bishop | Friedrich von Eickstedt † | Bishop of Kammin (Camin), Germany | Bishop Emeritus |
| 1 Oct | | Appointed | Sasso Giudici Leoni † | Archbishop of Manfredonia, Italy |
| Appointed | Arnaud Sabatier † | Bishop of Riez, France |
| 16 Oct | | Died | Matthew O’Fin † | Bishop of Ross, Ireland |
| 20 Oct | | Died | Berenguel Landore, O.P. † | Archbishop of Santiago de Compostela, Spain |
| 22 Oct | | Appointed | Alamanno Donati, O.F.M. † | Bishop of Sovana (Soana), Italy | Bishop of Modena, Italy |
| Appointed | Bernardo di Palma † | Bishop of Rapolla, Italy |
| 26 Oct | | Appointed | Juan Fernández de Limia † | Archbishop of Santiago de Compostela, Spain |
| Appointed | Jimeno † | Bishop of Plasencia, Spain |
| Appointed | Juan de Saavedra † | Bishop of Palencia, Spain |
| 5 Nov | | Appointed | Giovanni Pagnotta, O.S.A. † | Bishop of Anagni, Italy |
| 10 Nov | | Died | Ulrich von Montpreis † | Bishop of Chiemsee, Germany |
| 16 Nov | | Died | Francesco Poggio, O.P. † | Bishop of Perugia, Italy |
| 24 Nov | | Died | Guillaume de Durfort † | Archbishop of Rouen, France |
| 14 Dec | | Appointed | Guillaume de Brosse † | Archbishop of Sens, France |
| Appointed | Jean d’Arcy † | Bishop of Mende, France | Bishop of Langres, France |
| Appointed | Jean de Hautefune † | Bishop of Avranches, France |
| Appointed | Foucaud de Rochechouart † | Archbishop of Bourges, France |
| 40.9 | Appointed | Pierre Roger, O.S.B. † | Archbishop of Rouen, France | Pope (Roma {Rome}, Italy) |
| Appointed | Jean de Vienne † | Bishop of Thérouanne, France | Archbishop of Reims, France |
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