| Date | Age | Bishop | Title |
|---|
| unknown | 36.0 | Józef Mokosiej Bakowiecki, O.S.B.M. † | Bishop of Volodymyr (Włodzimierz) et Brėst (Ukrainian) |
| unknown | 43.0 | Lodovico Betti † | Bishop of Osimo, Italy |
| unknown | 60.0 | Francesco Boyl, O. de M. † | Bishop of Alghero, Italy |
| unknown | 70.9 | Vincenzo Bucchi (Buschio) † | Bishop of Kotor (Cattaro), Montenegro |
| unknown | 59.0 | Giovanni Tomaso Gastaldi, O.P. † | Bishop of Brugnato, Italy |
| unknown | 83.0 | Lorenzo Castrucci † | Bishop of Spoleto, Italy |
| unknown | 47.0 | Juan Coello Ribera y Sandoval † | Bishop of Plasencia, Spain |
| unknown | | Martino Denti de’ Cipriani, B. † | Bishop of Strongoli, Italy |
| unknown | 69.0 | Francesco Antonio Depace † | Bishop of Aquino, Italy |
| unknown | | Gregorius Frasini (Fassino), O.F.M. Obs. † | Bishop of Shkodrë (Scutari), Albania |
| unknown | | García Gil Manrique † | Bishop of Barcelona, Spain |
| unknown | | Francisco Naranjo, O.P. † | Bishop of Puerto Rico (Porto Rico) |
| unknown | | Attilio Orsini † | Bishop of Montepeloso, Italy |
| unknown | 54.0 | Raffaele Pizzorno, O.M. † | Bishop of Sagone (Sagona), France |
| unknown | 56.0 | Francisco de Zapata y Mendoza † | Bishop of Coria, Spain |
| 1 Jan | | Jan Chrzciciel Zamoyski, O.P. † | Bishop of Lutsk (Łuck), Ukraine |
| 7 Jan | 80.6 | Giovanni Battista Pamphilj † | Pope (Roma {Rome}, Italy) |
| 21 Jan | 76.0 | Fernando Andrade Sotomayor † | Archbishop of Santiago de Compostela, Spain |
| 2 Feb | 68.0 | Sébastien Zamet † | Bishop of Langres, France |
| 15 Feb | 73.5 | Pier Luigi Carafa (Sr.) † | Cardinal, Bishop Emeritus of Tricarico, Italy |
| 19 Feb | 75.1 | Diego Castejón Fonseca † | Bishop of Tarazona, Spain |
| 11 Mar | 34.1 | Giulio Cesare Borea † | Bishop of Comacchio, Italy |
| 13 Mar | 57.1 | Bernhard Frick † | Auxiliary Bishop of Paderborn, Germany |
| 14 Mar | 61.0 | Pietro Francesco Costa † | Bishop of Albenga, Italy |
| 18 Mar | 86.3 | Richard Smith † | Vicar Apostolic Emeritus of England (and Wales), Great Britain |
| 4 May | 60.3 | Francesco Peretti di Montalto † | Cardinal, Archbishop of Monreale, Italy |
| 9 May | 41.5 | Karol Ferdynand Vasa † | Bishop-Elect of Wrocław (Breslau), Poland |
| Jun | 59.4 | Jacob Philippe Tomasini † | Bishop of Novigrad (Cittanova), Croatia |
| 20 Jun | | Hector d’Ouvrier † | Bishop of Nîmes, France |
| 30 Jun | 81.7 | Jacques Boonen † | Archbishop of Mechelen, Belgium |
| 17 Jul | 55.5 | Andrea Borgia † | Bishop of Segni, Italy |
| 20 Jul | 72.5 | Bernard Despruets † | Bishop of Saint-Papoul, France |
| 10 Aug | 83.6 | Alfonso de la Cueva-Benavides y Mendoza-Carrillo † | Cardinal, Cardinal-Bishop of Palestrina |
| 30 Aug | 40.6 | Mátyás Tarnóczy † | Bishop of Vác, Hungary |
| Sep | 72.6 | Anastazy Antoni Seljava (Sielawa), O.S.B.M. † | Archbishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine |
| 12 Oct | 75.7 | Francesco Adriano Ceva † | Cardinal, Cardinal-Priest of Santa Prisca |
| 16 Oct | 66.7 | Giovanni Battista Malaspina † | Bishop of Massa Marittima, Italy |
| 15 Nov | 70.8 | Martín de León Cárdenas, O.S.A. † | Archbishop of Palermo, Italy |
| 23 Dec | 76.9 | Bernardo Lacabra † | Archbishop of Cagliari, Italy |
| 25 Dec | 48.9 | Maurizio Solaro (di Moretta) † | Bishop of Mondovi, Italy |
| 27 Dec | 68.9 | Francisco de Manso Zuńiga y Sola † | Archbishop of Burgos, Spain |
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