| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | | Appointed | Cesario d’Alagno † | Bishop of Famagusta, Cyprus | Archbishop of Salerno, Italy |
| Appointed | Marzucco Gaetani † | Bishop of Massa Marittima, Italy | Bishop of Luni, Italy |
| Died | Guillaume de Gičres † | Bishop of Gap, France |
| Died | Lanfranco , O.S.B. † | Bishop of Bergamo, Italy |
| Appointed | Niccolň Maltraversi † | Bishop of Reggio Emilia, Italy |
| Died | Manfredo † | Archbishop of Durrës (Durazzo), Albania |
| Died | Gonzalo Miguel † | Bishop of Segovia, Spain |
| Resigned | Bernard Raimond de Roquefort † | Bishop of Carcassonne, France | Bishop Emeritus |
| Died | Juan de Tarazona † | Bishop of Pamplona, Spain |
| 51.0 | Appointed | Theodericus (Dietrich, Thierry) von Treiden, O. Cist. † | Bishop of Leal (Lihula), Estonia |
| 51.0 | Appointed | Theodericus (Dietrich, Thierry) von Treiden, O. Cist. † | Auxiliary Bishop of Ličge, Belgium | Bishop of Leal (Lihula), Estonia |
| 51.0 | Appointed | Theodericus (Dietrich, Thierry) von Treiden, O. Cist. † | Auxiliary Bishop of Köln {Cologne}, Germany | Bishop of Leal (Lihula), Estonia |
| Appointed | Guy de Vaux-de-Cernay † | Bishop of Carcassonne, France |
| Appointed | Soeiro Viegas † | Bishop of Lisboa, Portugal |
| 1 Mar | 51.1 | Ordained Bishop | Theodericus (Dietrich, Thierry) von Treiden, O. Cist. † | Bishop of Leal (Lihula), Estonia |
| 8 Mar | | Died | García de Contreras † | Bishop of Burgos, Spain |
| 13 Mar | 51.1 | Died | Umberto da Pirovano † | Cardinal, Archbishop of Milano {Milan}, Italy |
| 4 May | | Appointed | Gerardo da Sessa, O. Cist. † | Archbishop of Milano {Milan}, Italy | Cardinal, Archbishop-Elect |
| Jun | | Died | Tommaso Morsini † | Titular Patriarch of Constantinople |
| Appointed | Gerardo da Sessa, O. Cist. † | Cardinal-Bishop of Albano | Cardinal, Archbishop-Elect of Milano {Milan}, Italy |
| Elevated to Cardinal | Gerardo da Sessa, O. Cist. † | Cardinal, Archbishop-Elect of Milano {Milan}, Italy |
| 1 Jun | | Installed | Niccolň Maltraversi † | Bishop of Reggio Emilia, Italy |
| 17 Jul | | Appointed | Paweł † | Bishop of Poznań, Poland |
| Aug | | Appointed | Giovanni Tornielli † | Bishop of Bergamo, Italy |
| 11 Aug | | Died | Guillermo Berenger † | Archbishop of Narbonne, France |
| Nov | | Appointed | Juan Maté † | Bishop of Burgos, Spain |
| 29 Nov | | Died | Páll Jónsson † | Bishop of Skálholt, Iceland |
![[ Comments/Corrections ]](/images/qfeedback.gif){kind=small}
