| Date | Age | Bishop | Title |
| unknown | | Crisostomo Arameo, O.S.B. † | Bishop of Stagno (Ston), Croatia |
| unknown | 67.0 | Lorenzo Asprella † | Bishop of Massa Lubrense, Italy |
| unknown | 61.0 | Antonio Atzori † | Bishop of Bosa, Italy |
| unknown | | Giovanni Battista Bernini, O.F.M. Conv. † | Bishop of Chiron, Greece |
| unknown | | Annibale Caracciolo † | Bishop of Isola, Italy |
| unknown | 67.0 | Giovanni Anselmo Carminato † | Bishop of Alba (Pompea), Italy |
| unknown | | Martín Ignacio de Loyola † | Bishop of Paraguay |
| unknown | | Giovanni Domenico d’Ettore † | Bishop of Ostuni, Italy |
| unknown | | Alessandro Guidiccioni † | Bishop Emeritus of Lucca, Italy |
| unknown | | Juan Guzmán † | Patriarch of West Indies, Spain |
| unknown | | Bernardino Morra † | Bishop of Aversa, Italy |
| unknown | | Francesco Maria Sforza † | Bishop of Conversano, Italy |
| unknown | | Francisco Velarde de la Cuenca † | Archbishop of Messina, Italy |
| 6 Jan | 57.0 | Johann Nopel (Jr.) † | Auxiliary Bishop of Köln {Cologne}, Germany |
| 10 Jan | 86.0 | Philippe du Bec † | Archbishop of Reims, France |
| 20 Jan | | Lorenzo Figueroa Córdoba, O.P. † | Bishop of Sigüenza, Spain |
| 25 Jan | | Gaspare Viviani † | Bishop of Anagni, Italy |
| 4 Feb | | Arnaldi de Pontac † | Bishop of Bazas, France |
| 24 Feb | 83.1 | Girolamo Simoncelli † | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 25 Feb | | Mario Bolognini † | Archbishop of Salerno, Italy |
| 3 Mar | 69.0 | Ippolito Aldobrandini (Sr.) † | Pope (Roma {Rome}, Italy) |
| 27 Apr | 50.3 | Girolamo Agucchi † | Cardinal, Cardinal-Priest of San Pietro in Vincoli |
| 27 Apr | 69.9 | Alessandro Ottaviano de’ Medici † | Pope (Roma {Rome}, Italy) |
| 2 May | | Leonard Abel † | Titular Bishop of Sidon |
| 14 May | | Dionys Burckard † | Auxiliary Bishop of Speyer, Germany |
| 16 May | | Marin Braiani (Brajanovic), O.F.M. † | Bishop Emeritus of Lezhë {Lesh, Alessio}, Albania |
| 31 May | 51.4 | Paolo Emilio Zacchia † | Cardinal, Bishop of Corneto (Tarquinia) e Montefiascone, Italy |
| 15 Jun | | Fabrizio Campi (Capanus) † | Bishop of Ferentino, Italy |
| 16 Jul | 60.3 | Gian Francesco Biandrate di San Giorgio Aldobrandini † | Cardinal, Bishop of Faenza, Italy |
| 25 Jul | | Matteo Zane † | Patriarch of Venezia {Venice}, Italy |
| 26 Jul | | Miguel de Benavides, O.P. † | Archbishop of Manila, Philippines |
| 2 Sep | 51.7 | Manuel Quero Turillo † | Bishop of Cefalů, Italy |
| 7 Sep | | Juan de La Roca † | Bishop of Popayán, Colombia |
| 14 Sep | | Placido Fava, O.S.B. † | Bishop of Telese o Cerreto Sannita, Italy |
| 23 Sep | | Pons de Thiard de Bissy † | Bishop Emeritus of Chalons-sur-Saône, France |
| 24 Sep | | Giovanni de Gantes † | Bishop of Mazara del Vallo, Italy |
| Oct | | Antonio Guarneschi, O.F.M. Conv. † | Bishop of Segni, Italy |
| 5 Oct | | Pierre Simons † | Bishop of Ypres (Ieper), Belgium |