| Date | Age | Event | Bishop | Title | Current Title |
| 2 Jul | | Born | Cassiodoro Margarita † | Napoli | Bishop of Gravina e Irsina, Italy |
| 3 Jul | 29.3 | Ordained Priest | Antonio Despuig y Dameto † | Priest | Cardinal, Archbishop Emeritus of Sevilla {Seville}, Spain |
| 38.5 | Ordained Bishop | Giampaolo Dolfin, C.R.L. † | Bishop of Ceneda, Italy | Bishop of Bergamo, Italy |
| 44.5 | Ordained Bishop | Onofrio Maria Gennari † | Bishop of Montemarano, Italy |
| 39.6 | Ordained Bishop | Nicolò Rossetti † | Bishop of Boiano, Italy |
| 10 Jul | 91.5 | Died | Louis-François-Gabriel d’Orléans de La Motte † | Bishop of Amiens, France |
| 36.5 | Succeeded | Louis-Charles de Machaut † | Bishop of Amiens, France | Bishop Emeritus |
| 17 Jul | 43.5 | Selected | Guillaume-Joseph d’Abzac de Mayac † | Bishop of Saint-Papoul, France |
| 45.5 | Ordained Bishop | Guillaume-Louis du Tillet † | Bishop of Orange, France |
| 18 Jul | 55.5 | Selected | Friedrich Karl Joseph von Erthal † | Archbishop of Mainz, Germany | Archbishop Emeritus |
| 21 Jul | | Born | Francesco Leonini † | Recanati | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 23 Jul | 81.3 | Died | Bartolomeo Antonio Passi † | Auxiliary Bishop of Trento, Italy |
| 24 Jul | 38.2 | Ordained Bishop | Marie-Joseph de Galard de Terraube † | Bishop of Le Puy-en-Velay, France |
| 89.6 | Died | Aleksander Kazimierz Horain † | Auxiliary Bishop Emeritus of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 77.6 | Died | Étienne-René Potier de Gesvres † | Cardinal, Bishop Emeritus of Beauvais, France |
| 25 Jul | 63.6 | Died | Miguel Anselmo Álvarez de Abreu y Valdéz † | Bishop of Antequera, Oaxaca, México |
| 81.4 | Died | Pompeo Compagnoni † | Bishop of Osimo e Cingoli, Italy |
| 26 Jul | 55.6 | Selected | Friedrich Karl Joseph von Erthal † | Bishop of Worms, Germany | Archbishop Emeritus of Mainz, Germany |
| 27 Jul | 41.9 | Appointed | Franciscus Salesius (Eustache) Federl, O.C.D. † | Vicar Apostolic of Malabar, India |
| 41.9 | Appointed | Franciscus Salesius (Eustache) Federl, O.C.D. † | Titular Bishop of Germanicia | Vicar Apostolic of Malabar, India |
| 15 Aug | | Born | Charles Thomas Arnosio † | Carignano | Archbishop of Sassari, Italy |
| 64.2 | Died | Serafino Brancone (Branconi), O.S.B. † | Bishop Emeritus of Gallipoli, Italy |
| 16 Aug | | Born | Mihail (Mychajlo) Lewicki (Levyckyj) † | Lanczyn | Cardinal, Archbishop of Lviv (Ukrainian), Ukraine |
| 17 Aug | 62.3 | Selected | Francesco Antonio Deplano † | Bishop of Iglesias, Italy |
| Born | Santiago José O’ Phelan Recabarren † | Arequipa | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 21 Aug | 34.6 | Ordained Bishop | Walenty Wołczacki, O.P. † | Titular Bishop of Tamasus |
| 24 Aug | 20.2 | Ordained Deacon | Péter Klobusiczky † | Deacon of Society of Jesus | Archbishop of Kalocsa, Hungary |
| 26 Aug | | Born | Domenico Bellusci † | Frascineto | Titular Bishop of Sinope |
| 28 Aug | 42.3 | Ordained Bishop | Alfonso Marcos Llanes † | Bishop of Segovia, Spain | Archbishop of Sevilla {Seville}, Spain |
| 1 Sep | 66.4 | Died | Innocenzo Gorgoni, O.S.B. † | President Emeritus of Pontifical Ecclesiastical Academy, Roman Curia |
| 4 Sep | 49.7 | Died | Léopold-Charles de Choiseul-Stainville † | Archbishop of Cambrai, France |
| 11 Sep | 55.7 | Ordained Priest | Friedrich Karl Joseph von Erthal † | Priest of Mainz, Germany | Archbishop Emeritus |
| 17 Sep | 23.8 | Ordained Priest | St. Louis Gabriel Taurin Dufresse, M.E.P. † | Priest of La Société des Missions Etrangères | Vicar Apostolic of Se-Ciuen (Setchoan), China |
| 18 Sep | | Born | Niccola Berlingeri † | Cotrone | Bishop of Nicastro, Italy |
| 19 Sep | 59.4 | Died | José Franquís Lasso de Castilla † | Bishop of Málaga, Spain |
| Born | Giuseppe Gasparo Mezzofanti † | Bologna, Italy | Cardinal, Cardinal-Priest of Sant’Onofrio |
| 22 Sep | 68.9 | Died | Lorenzo (Giovanni Vincenzo Antonio) Ganganelli, O.F.M. Conv. † | Pope (Roma {Rome}, Italy) |
| 23 Sep | 62.7 | Died | Charles-Jean de Bertin † | Bishop of Vannes, France |
| 24 Sep | 23.7 | Ordained Priest | John Connolly, O.P. † | Priest of Order of Friars Preachers | Bishop of New York, New York, USA |
| 22.9 | Ordained Deacon | Paolo Lamberto D’Allègre † | Deacon | Bishop of Pavia, Italy |
| 24.1 | Ordained Priest | Jacques-Alexis Jacquemin † | Priest | Bishop Emeritus of Saint-Dié, France |
| 24.0 | Ordained Priest | Ignazio Nasalli-Ratti † | Priest | Cardinal, Official of the Roman Curia - Other |
| 23.4 | Ordained Priest | Dominicus Ventapane † | Priest | Titular Bishop of Tium |
| 25 Sep | 47.6 | Ordained Bishop | António Freire Gameiro de Sousa † | Bishop of Aveiro, Portugal |
| 39.5 | Ordained Bishop | Francisco de Lemos de Faria Pereira Coutinho † | Titular Bishop of Zenopolis in Lycia | Bishop of Coimbra, Portugal |
| 1 Oct | 33.9 | Selected | Jean-Auguste de Chastenet de Puységur † | Bishop of Saint-Omer, France | Archbishop Emeritus of Bourges, France |
| 13 Oct | 72.8 | Died | Guillaume d’Arche † | Bishop of Bayonne, France |
| 14 Oct | | Born | Bernardo Francés Caballero † | Madrid | Archbishop of Zaragoza, Spain |
| 17 Oct | 58.4 | Died | Hermann Hannibal von Blümegen † | Bishop of Hradec Králové, Czech Republic |
| 19 Oct | | Born | Carmelo Cordiviola † | Catania | Bishop of Albenga, Italy |
| 20 Oct | | Born | José Hilarión Etrura Cevallos, O.P. † | Córdoba | Auxiliary Bishop of San Juan de Cuyo, Argentina |
| 28 Oct | 38.4 | Installed | Marie-Joseph de Galard de Terraube † | Bishop of Le Puy-en-Velay, France |
| Nov | 61.8 | Died | Giovanni Antonio Francisco de Nobili † | Bishop of Larino, Italy |
| 4 Nov | | Born | Ignaz Heinrich von Wessenberg † | Dresden | Vicar Apostolic Emeritus of Konstanz {Constance}, Germany |
| 5 Nov | 80.0 | Died | François-Marie de Mansi † | Archbishop of Avignon, France |
| 6 Nov | | Born | Severo Leonardo Andriani Escofet † | Barcelona | Bishop of Pamplona (-Tudela), Spain |
| 10 Nov | 33.2 | Selected | Sébastien-Michel Amelot † | Bishop of Vannes, France | Bishop Emeritus |
| Born | Marcin von Dundin Sulgustowski † | Wal | Archbishop of Gniezno e Poznań, Poland |
| 18 Nov | | Born | Luigi Bovio, O.S.B. † | Bitonto | Bishop of Melfi e Rapolla, Italy |
| 79.2 | Died | Giovanni Francesco Stoppani † | Cardinal, Cardinal-Bishop of Palestrina |
| Born | Michele Virgili † | Longiano | Bishop of Comacchio, Italy |
| 20 Nov | 42.2 | Ordained Bishop | Franciscus Salesius (Eustache) Federl, O.C.D. † | Titular Bishop of Germanicia | Vicar Apostolic of Malabar, India |
| Dec | 16.2 | Professed | Bernardino D’Avolio, O.F.M. Cap. † | Member of Order of Friars Minor Capuchin | Bishop of Trivento, Italy |
| 2 Dec | | Born | François-René Boussen † | Furnes | Bishop of Brugge {Bruges}, Belgium |
| 48.9 | Died | Antonius von Herberstein, C.R. † | Bishop of Trieste, Italy |
| 14 Dec | | Died | Juan Manuel Garcia de Vargas y Ribera, O. de M. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 17 Dec | 24.2 | Ordained Priest | Giuseppe Manfrin Provedi † | Priest | Bishop of Chioggia, Italy |
| 24.2 | Ordained Priest | Luigi Zuppani † | Priest | Bishop of Belluno e Feltre, Italy |
| 18 Dec | 76.0 | Died | Manuel Quintano Bonifaz † | Apostolic Administrator of Toledo, Spain |
| 26 Dec | 58.9 | Died | Giovanni Battista Orsi † | Bishop of Fano, Italy |
| 27 Dec | | Born | Pierre-Tobie Yenni † | Morion | Bishop of Lausanne et Genève, Switzerland |