| Date | Age | Bishop | Title |
| unknown | | Belisario Baldevino † | Bishop of Larino, Italy |
| unknown | | Giambattista de Benedictis † | Bishop of Penne e Atri, Italy |
| unknown | | François de Bouliers † | Bishop of Fréjus, France |
| unknown | | Scipione Bozzuti † | Bishop of Lucera, Italy |
| unknown | | Giovanni Battista Brugnatelli † | Bishop of Assisi, Italy |
| unknown | | Orazio Celsi † | Bishop of Melfi e Rapolla, Italy |
| unknown | | Giovanni Antonio de Paola † | Bishop of Belcastro, Italy |
| unknown | | Paolo Maria della Rovere † | Bishop of Cagli, Italy |
| unknown | | Cesare Gambara † | Bishop of Tortona, Italy |
| unknown | | Pierre de Lambert † | Bishop of Saint-Jean-de-Maurienne, France |
| unknown | | Ercole Lamia † | Bishop of Alessano, Italy |
| unknown | | Pio Loterio, O.S.B. † | Bishop of Fondi (Fundi), Italy |
| unknown | | Ludovico Majorino, C.R.L. † | Bishop of Castellammare di Stabia, Italy |
| unknown | | Pedro Maldonado † | Bishop of Ciudad Rodrigo, Spain |
| unknown | | Pompilio Perotti † | Bishop of Guardialfiera (Guardia), Italy |
| unknown | | Girolamo Petroni † | Bishop of Terni, Italy |
| unknown | | Pompeo Rocchi † | Bishop of Cavaillon, France |
| unknown | | Ercole Sacrati † | Bishop of Comacchio, Italy |
| 8 Jan | | Ottaviano Pasqua † | Bishop of Gerace, Italy |
| 13 Jan | 53.0 | Antonio Carafa † | Cardinal, Cardinal-Priest of Santi Giovanni e Paolo |
| 20 Jan | | Giovanni Placido † | Bishop of Sessa Aurunca, Italy |
| 29 Jan | 63.1 | Marquard von Berg † | Bishop of Augsburg, Germany |
| 13 Feb | | Vincenzo Torfanini † | Bishop of Rimini, Italy |
| 17 Feb | | François Thomé † | Bishop Emeritus of Saint-Malo, France |
| 3 Mar | | Georgius Manzolus † | Bishop of Aversa, Italy |
| 11 Mar | 40.2 | Bernhard von Waldeck † | Former Bishop-Elect of Osnabrück, Germany |
| 18 Mar | | Juan Ruiz de Villarán † | Bishop of Lugo, Spain |
| 18 Mar | 72.2 | Giovanni Antonio Serbelloni † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 21 Mar | | Alexandre Canigiani † | Archbishop of Aix, France |
| 5 Apr | | Piotr Myszkowski † | Bishop of Kraków, Poland |
| 15 Apr | 87.3 | Gian Girolamo Albani † | Cardinal, Cardinal-Priest of San Giovanni a Porta Latina |
| 28 Apr | 59.3 | Ippolito de’ Rossi † | Cardinal, Bishop of Pavia, Italy |
| 7 May | | Celso Paci † | Bishop of Castro [del Lazio], Italy |
| 20 May | | Vincenzo Casali † | Bishop Emeritus of Massa Marittima, Italy |
| 28 May | | Giovanni Antonio Lazzari † | Bishop of Amelia, Italy |
| 3 Sep | | Francisco Avellaneda † | Archbishop of Acerenza e Matera, Italy |
| 3 Sep | | Fernando de la Vega Fonseca † | Bishop of Córdoba, Spain |
| 12 Sep | | Alexandre de Bardi † | Bishop of Saint-Papoul, France |
| 13 Sep | | Marcos de Betania, O.F.M. † | Bishop of Porto, Portugal |
| 19 Sep | | Juan Martínez de Villatoriel † | Bishop of Lérida, Spain |
| 16 Oct | 56.7 | Niccolò Sfondrati † | Pope (Roma {Rome}, Italy) |
| 17 Oct | | Antoine Prévost de Sansac † | Archbishop of Bordeaux, France |
| 21 Oct | 37.0 | Ernst von Mengersdorf † | Bishop of Bamberg, Germany |
| 7 Dec | | Pedro de Moya y Contreras † | Archbishop of México, Federal District |
| 23 Dec | 51.0 | Giovanni Vincenzo Gonzaga, O.S.Io.Hieros. † | Cardinal, Cardinal-Priest of Sant’Alessio |
| 30 Dec | 72.4 | Giovanni Antonio Facchinetti de Nuce † | Pope (Roma {Rome}, Italy) |
| 30 Dec | | Alfonso López de Avila † | Archbishop of Santafé en Nueva Granada, Colombia |