| Date | Age | Bishop | Title |
| unknown | | Conrad Antonii, O.P. † | Auxiliary Bishop of Verden, Germany |
| unknown | | Bernardino Barbiani, O.F.M. Obs. † | Bishop of Bisaccia, Italy |
| unknown | | Garcia Bayon, O.P. † | Titular Bishop of Laodicea in Syria |
| unknown | | Carlo Boccardini † | Bishop of Narni, Italy |
| unknown | | Girolamo Camulio, O.F.M. † | Bishop of Chios (Scio), Greece |
| unknown | | Tommaso de Carafa † | Bishop of Trivento, Italy |
| unknown | | Matteo Cibo (Cybo) † | Bishop of Viterbo e Tuscania, Italy |
| unknown | | Georg Fabri, O.P. † | Auxiliary Bishop of Mainz, Germany |
| unknown | | Roberto Gerardo de Ferrara, O.P. † | Bishop of Guardialfiera (Guardia), Italy |
| unknown | | Bernardino Ferrari de Achrio † | Bishop of Bisignano, Italy |
| unknown | | Giovanni di Fonsalida (Fuentes Salida) † | Bishop of Terni, Italy |
| unknown | | Niels Glob † | Bishop of Viborg, Denmark |
| unknown | | Carlo Gualandi † | Bishop of Ostuni, Italy |
| unknown | | Thierry Hake † | Bishop of Dorpat (Tartu), Estonia |
| unknown | | Paweł de Krakow, O.P. † | Auxiliary Bishop of Kraków, Poland |
| unknown | | Antonio Laurenti † | Bishop of Ferentino, Italy |
| unknown | | Celso Mellini † | Bishop of Montefeltro, Italy |
| unknown | 68.0 | Giuliano Mirto Frangipani † | Bishop of Tropea, Italy |
| unknown | | Tiberio Nardini † | Archbishop of Manfredonia, Italy |
| unknown | | Nicolas † | Auxiliary Bishop of Passau, Germany |
| unknown | | Antonio Savina † | Bishop of Kisamos (Cisamo), Greece |
| unknown | | Marco Antonio de’ Tolomei † | Bishop of Lecce, Italy |
| unknown | | Blasius Vramay, O.P. † | Bishop of Lixien (Lissanen), Albania |
| 10 Jan | | Nicolò Trevisani † | Bishop of Ceneda, Italy |
| 21 Jan | 63.0 | Uriel Górka † | Bishop of Poznań, Poland |
| Feb | | Bartolomeo Torelli, O.P. † | Bishop of Cagli, Italy |
| 7 Mar | 68.1 | Simon zur Lippe † | Bishop of Paderborn, Germany |
| 9 Mar | | Jacques Hémere † | Titular Bishop of Bethleem |
| 22 Mar | 70.2 | Paolo Fregoso (Campofregoso) † | Cardinal, Archbishop of Genova, Italy |
| 13 Apr | | Mikołaj Krajowski (Primus) † | Bishop of Przemyśl, Poland |
| 19 Apr | | Izarn de Barrière † | Bishop of Maguelonne, France |
| 26 May | | Giacomo Breuquet † | Bishop of Nocera Umbra, Italy |
| 26 May | | Giovanni Cerretani † | Bishop Emeritus of Nocera Umbra, Italy |
| 28 May | 65.4 | Jean d’Amboise † | Bishop Emeritus of Langres, France |
| 17 Jul | | Nikolaus Frier, O.E.S.A. † | Auxiliary Bishop of Basel, Switzerland |
| 20 Jul | | Charles de Neufchâtel † | Archbishop of Besançon, France |
| 23 Jul | | Bartolomeo Flores † | Archbishop Emeritus of Cosenza, Italy |
| 13 Aug | | Aloysius Capra † | Bishop of Pesaro, Italy |
| 25 Aug | 64.6 | Giovanni (John) de’ Gigli † | Bishop of Worcester, England, Great Britain |
| Sep | | Francisco Sánchez de la Fuente † | Bishop of Córdoba, Spain |
| 1 Sep | | Pietro Ghirardelli de Montemarto † | Bishop of Osimo, Italy |
| 18 Sep | 76.7 | Giovanni Battista Savelli † | Cardinal, Cardinal-Deacon of San Nicola in Carcere |