| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Jean-Baptiste Adhémar de Monteil de Grignan † | | Archbishop of Arles, France |
| 37.7 | Appointed | Francesco Boccapaduli † | Bishop of Sulmona, Italy | Bishop Emeritus of Città di Castello, Italy |
| Born | Henri de Briqueville † | | Bishop of Cahors, France |
| Died | Annibale D'Afflitto † | Archbishop of Reggio Calabria, Italy |
| Born | Diego Evelino Hurtado de Compostela (Vélez) † | Santiago de Compostela | Bishop of Santiago de Cuba |
| Born | Felipe Galindo Chávez y Pineda, O.P. † | Veracruz | Bishop of Guadalajara, Jalisco, México |
| Died | Benedetto Landi † | Bishop Emeritus of Fossombrone, Italy |
| Born | Louis de La Vergne-Montenard de Tressan † | Beziers | Bishop of Le Mans, France |
| Appointed | João Mendes de Távora † | Bishop of Coimbra, Portugal |
| Died | Jorge de Melo † | Bishop of Coimbra, Portugal |
| Appointed | Angelo Pico † | Archbishop of Amalfi, Italy | Bishop of San Miniato, Italy |
| Born | Michel Poncet de la Rivière † | | Bishop of Uzés, France |
| Born | Francisco de São Jerõnimo de Andrade, C.S.J. † | Lisboa, Portugal | Bishop of São Sebastião do Rio de Janeiro, Brazil |
| 19.3 | Professed | Matthäus Ferdinand Sobek von Bilenberg, O.S.B. † | Member of Order of Saint Benedict | Archbishop of Praha {Prague}, Czech Republic |
| Born | Domenico Tarugi † | Ferrara | Cardinal, Bishop of Ferrara, Italy |
| Appointed | Nikolaus Aliprandi von Thomasis † | Auxiliary Bishop of Passau, Germany |
| Appointed | Francesco Tontori (Tontolo), C.R.S. † | Bishop of Ischia, Italy |
| Ordained Bishop | José Valle de la Cerda, O.S.B. † | Bishop of Almería, Spain | Bishop of Badajoz, Spain |
| 63.0 | Died | Jan Wężyk † | Archbishop of Gniezno, Poland |
| 10 Jan | 32.4 | Ordained Bishop | Marquard Reichsgraf von Schenk von Castell † | Bishop of Eichstätt, Germany |
| 11 Jan | | Born | Bl. Niels Stensen † | Kobenhavn | Vicar Apostolic of Nordic Missions, Germany |
| 27 Jan | | Died | Hernando de Arias y Ugarte † | Archbishop of Lima, Peru |
| 4 Feb | | Born | José de Oliveira, O.S.A. † | Guimaraes | Bishop Emeritus of Angola e Congo, Angola |
| 6 Feb | | Born | Johann Ignaz Dlouhovesky † | Praha | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 9 Feb | 73.1 | Died | Gutiérrez Bernardo de Quirós (Quiróz) † | Bishop of Tlaxcala, Tlaxcala, México |
| 26 Feb | | Appointed | Francesco Antonio Frasella, O.F.M. Conv. † | Apostolic Administrator of Japan |
| 14 Mar | | Ordained Bishop | Cipriano Arcón † | Bishop of Alghero, Italy |
| 15 Mar | 61.2 | Installed | Diego de Zambrana de Villalobos y Cordero † | Bishop of Concepción, Chile | Bishop of Santiago de Chile |
| 22 Mar | 52.9 | Appointed | Diego Arce Reinoso † | Bishop of Avila, Spain | Bishop Emeritus of Plasencia, Spain |
| 18 Apr | | Died | Luis García Rodríguez † | Bishop of Astorga, Spain |
| 19 Apr | | Appointed | Agostino Ferentillo † | Bishop of Conversano, Italy |
| 2 May | 51.3 | Ordained Bishop | Gaspar de Villarroel, O.S.A. † | Bishop of Santiago de Chile | Archbishop of La Plata o Charcas, Bolivia |
| 6 May | | Born | Carlo Bichi † | Siena | Cardinal, Cardinal-Deacon of S. Agata de’ Goti |
| 53.3 | Died | Cornelius Janssen † | Bishop of Ypres (Ieper), Belgium |
| 29 May | 28.0 | Ordained Priest | Francesco Alberti di Poja † | Priest of Trento, Italy | Bishop |
| 1 Jun | | Died | Antonio Brunachio † | Bishop of Conversano, Italy |
| 13 Jun | | Appointed | Juan de la Torre Ayala † | Bishop of Zamora, Spain |
| 14 Jun | 41.2 | Appointed | Juan Alonso y Ocón † | Bishop of Yucatán (Mérida), Yucatán, México | Archbishop of La Plata o Charcas, Bolivia |
| 21 Jun | 78.5 | Died | Roland Hébert † | Archbishop of Bourges, France |
| Appointed | Francisco Pérez Roy † | Bishop of Perpignan-Elne, France | Bishop of Guadix, Spain |
| 62.5 | Appointed | Gonzalo Sánchez de Somoza Quiroga † | Bishop of Mondoñedo, Spain |
| 7 Jul | | Born | Johann Michael Reichsgraf von Spaur und Valör † | Val di Non | Bishop of Trento, Italy |
| 28 Jul | 46.6 | Appointed | Alessandro Cesarini (Jr.) † | Cardinal-Deacon of S. Eustachio | Cardinal, Bishop Emeritus of Viterbo e Tuscania, Italy |
| 6 Aug | | Appointed | Simone Carafa Roccella, O. Teat. † | Archbishop of Acerenza e Matera, Italy |
| 9 Aug | | Born | Giovanni Francesco Miller † | Gorizia | Bishop of Trieste, Italy |
| Born | Konrad Wilhelm Reichsfreiherr von Werdenau † | Dettingen | Bishop-Elect of Würzburg, Germany |
| 25 Aug | | Died | Gaspar Gil y Miravete de Blancas † | Bishop of Vic, Spain |
| 30 Aug | | Appointed | Juan Pastor, O.M. † | Bishop of Crotone (Cotrone), Italy |
| 11 Sep | | Died | Juan de la Torre Ayala † | Bishop of Zamora, Spain |
| 12 Sep | | Ordained Bishop | Juan Pastor, O.M. † | Bishop of Crotone (Cotrone), Italy |
| 13 Sep | | Appointed | Miguel Beltrán Castellón † | Bishop of Ales e Terralba, Italy |
| 46.4 | Appointed | Francesco Maria Brancaccio † | Bishop of Viterbo e Tuscania, Italy | Cardinal, Bishop of Porto e Santa Rufina, Italy |
| 46.7 | Resigned | Alessandro Cesarini (Jr.) † | Bishop of Viterbo e Tuscania, Italy | Cardinal, Bishop Emeritus |
| 25 Sep | 67.7 | Died | Gereon Otto Freiherr von Gutmann zu Sobernheim † | Auxiliary Bishop of Köln {Cologne}, Germany |
| 26 Sep | 27.9 | Ordained Priest | Ludwik Stempkowski † | Priest of Society of Jesus | Bishop of Foreign Diocese |
| 28 Sep | 24.7 | Confirmed | Leopold Wilhelm Erzherzog von Österreich † | Bishop of Olomouc, Czech Republic | Bishop-Elect of Passau, Germany |
| 11 Oct | 43.3 | Appointed | Ulderico Carpegna † | Bishop of Todi, Italy | Cardinal, Bishop Emeritus |
| 17 Oct | 42.1 | Ordained Bishop | Antonio Marenzi † | Bishop of Pedena, Austria | Bishop of Trieste, Italy |
| 1 Nov | | Born | Manuel Arias y Porres, O.S.H. † | Alaejos | Cardinal, Archbishop of Sevilla {Seville}, Spain |
| 9 Nov | 70.9 | Died | Fernando de Vera y Zuñiga, O.S.A. † | Bishop of Cuzco, Peru |
| 20 Dec | 26.0 | Ordained Priest | Peter Franz Longinus von Kieferberg † | Priest of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany | Prefect |
| Died | Juan Bautista Pellicer † | Bishop of Segorbe, Spain |