| Date | Age | Bishop | Title |
| unknown | | Pedro de la Torre, O.F.M. † | Bishop of Paraguay |
| unknown | | Giulio Cesare de Gennaro † | Bishop of Nicotera, Italy |
| unknown | | Miguel Ibáñez † | Archbishop of Sassari, Italy |
| unknown | | Juan Jubí, O.F.M. † | Auxiliary Bishop of Barcelona, Spain |
| unknown | | Marzio de Marzi Medici † | Bishop of Marsico Nuovo, Italy |
| unknown | | Felice de Massimi † | Bishop of Città Ducale, Italy |
| unknown | | Stanislaus Szezniski † | Auxiliary Bishop of Poznań, Poland |
| unknown | | Jérôme de Valperga † | Archbishop of Tarentaise (Moûtiers-en-Tarentaise), France |
| unknown | | Alphonse Vercelli † | Bishop of Lodève, France |
| 17 Jan | 63.0 | Pedro Ponce de Léon † | Bishop of Plasencia, Spain |
| 27 Jan | 49.1 | Diego Ramírez Sedeño de Fuenleal † | Bishop of Pamplona, Spain |
| 9 Feb | | Pietro Gritti † | Bishop of Poreč (Parenzo), Croatia |
| 23 Feb | | Burchard Oberg † | Bishop of Hildesheim, Germany |
| 2 Apr | 59.1 | Otto Truchseß von Waldburg † | Cardinal, Bishop of Augsburg, Germany |
| 16 May | | Nicolaas van der Borcht † | Bishop of Middelburg, Netherlands |
| 29 May | | Bertrand de Marillac, O.F.M. † | Bishop of Rennes, France |
| 11 Jun | 64.4 | Leonardo Marini, O.P. † | Bishop Emeritus of Alba (Pompea), Italy |
| 15 Jun | 69.0 | Anton Vrancic (Verancsics) † | Cardinal, Archbishop of Esztergom, Hungary |
| 4 Jul | 91.2 | Ludovico Chericato (Chierepati), O.F.M. † | Archbishop Emeritus of Bar (Antivari), Montenegro |
| 7 Sep | 48.7 | Giovanni Aldobrandini † | Cardinal, Bishop Emeritus of Imola, Italy |
| 28 Sep | | Antoine Herlault † | Bishop of Chalons-sur-Saône, France |
| Oct | 54.8 | Pedro Leitão † | Bishop of São Salvador da Bahia, Brazil |
| 13 Oct | | Urban Sagstetter † | Bishop of Gurk, Austria |
| 16 Oct | | Francisco Mejía de Molina, O.P. † | Auxiliary Bishop of Sigüenza, Spain |
| Nov | | Salvatore Caracciolo, C.R. † | Archbishop of Conza, Italy |
| 12 Nov | | Christian Krypper † | Auxiliary Bishop of Passau, Germany |
| 12 Nov | 66.0 | Friedrich von Wirsberg † | Bishop of Würzburg, Germany |
| 28 Dec | 53.0 | Antonio Altoviti † | Archbishop of Firenze {Florence}, Italy |