| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Leonardo Dolfin † | Titular Patriarch of Alexandria {Alessandria} |
| Died | Giacomo Gallucci, O.P. † | Bishop of Castellammare di Stabia, Italy |
| Born | Dietrich von Schönberg † | | Bishop of Meißen (Meissen), Germany |
| Died | Juan de Serrano † | Bishop of Sigüenza, Spain |
| Born | Walter Supersaxo † | | Bishop of Sion {Sitten}, Switzerland |
| Resigned | John Trevaur † | Bishop of Saint Asaph, Wales, Great Britain | Bishop Emeritus |
| Born | Siegfried von Venningen † | | Bishop of Speyer, Germany |
| Born | Bartolomeo Visconti † | | Bishop of Novara, Italy |
| 18 Jan | | Appointed | Jean , O.S.A. † | Titular Bishop of Athyra |
| 15 Feb | | Appointed | Konrad von Hebenstreit † | Bishop of Gurk, Austria | Bishop of Freising, Germany |
| 27 Feb | 37.2 | Appointed | Baldassare Cossa † | Cardinal-Deacon of Sant’Eustachio | Cardinal, Cardinal-Bishop of Frascati |
| 37.2 | Elevated to Cardinal | Baldassare Cossa † | Cardinal, Cardinal-Bishop of Frascati |
| 3 Mar | | Appointed | Marino Merula † | Bishop of Castellammare di Stabia, Italy | Bishop of Gaeta, Italy |
| 5 May | | Ordained Bishop | Vital de Castelmoron † | Bishop of Saint-Pons-de-Thomières, France | Archbishop of Toulouse, France |
| 26 Jul | | Appointed | Arnold Stapel (Stapil), O.T. † | Bishop of Chelmno (Culma, Kulm), Poland |
| 18 Sep | | Appointed | Marino Merula † | Bishop of Terracina, Priverno e Sezze, Italy | Bishop of Gaeta, Italy |
| 27 Sep | | Appointed | Pietro Grassi † | Bishop of Pavia, Italy |
| 20 Oct | | Ordained Bishop | Arnold Stapel (Stapil), O.T. † | Bishop of Chelmno (Culma, Kulm), Poland |