| Date | Age | Event | Bishop | Title | Current Title |
| Sep | 59.7 | Died | Francisco Sánchez Márquez † | Titular Bishop of Amyclae |
| 4 Sep | 85.6 | Died | Rodrigo de Moura Telles † | Archbishop of Braga, Portugal |
| 9 Sep | | Resigned | Juan Francisco Gómez Calleja † | Bishop of Popayán, Colombia | Bishop of Cartagena, Colombia |
| 11 Sep | | Died | Martín Zalayeta Lizarza † | Bishop of León, Spain |
| 12 Sep | | Born | Giuseppe Martini † | Fuscaldo | Bishop of Bova, Italy |
| 16 Sep | 59.6 | Died | Giacomo Rambert † | Bishop of Aosta, Italy |
| 18 Sep | 23.0 | Ordained Priest | Giovanni Angelo Ciocchi del Monte † | Priest | Archbishop Emeritus of Brindisi, Italy |
| 28.4 | Ordained Priest | Giacomo Filippo Consoli † | Priest | Bishop of Amelia, Italy |
| 24.5 | Ordained Priest | Francesco Gaetano Incontri † | Priest | Archbishop of Firenze {Florence}, Italy |
| 23.1 | Ordained Priest | Marco Aurelio Petruccelli † | Priest | Bishop of Nardò, Italy |
| Born | Basilio Tomás Sancho Hernando (de Santas Justa y Rufina), Sch. P. † | Villanueva, Spain | Archbishop of Manila, Philippines |
| 19 Sep | | Born | Adelmo Gennaro Pignatelli, O.S.B. † | Napoli | Archbishop of Capua, Italy |
| 20 Sep | 56.0 | Elevated to Cardinal | Giuseppe Accoramboni † | Cardinal, Cardinal-Bishop of Frascati |
| 64.3 | Appointed | Giulio Alberoni † | Cardinal-Priest of San Crisogono | Cardinal, Bishop Emeritus of Málaga, Spain |
| Succeeded | Alexandre de Alexandris, B. † | Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| 46.4 | Appointed | Agostino Bruti † | Titular Bishop of Cydonia (Agia, Canea) | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia |
| 51.2 | Elevated to Cardinal | Pier Luigi Carafa (Jr.) † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 56.8 | Appointed | Pedro Espinosa de los Monteros, O.F.M. † | Bishop of Jaca, Spain |
| 73.7 | Appointed | Manuel Antonio Gómez de Silva † | Bishop of Popayán, Colombia |
| Appointed | Juan Francisco Gómez Calleja † | Bishop of Cartagena, Colombia |
| 41.6 | Appointed | Alessandro Magno, O. Cist. † | Bishop of San Marco (Argentano), Italy |
| 75.0 | Appointed | Prospero Marefoschi † | Cardinal, Cardinal-Priest of San Silvestro in Capite |
| 46.0 | Appointed | Michael Angelus de Martino † | Titular Bishop of Arcadia |
| 40.8 | Appointed | Ildephonsus Naselli, O.S.B. † | Titular Bishop of Numida |
| 50.8 | Appointed | Raimondo Pecchioli, O.P. † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| Died | François Perez † | Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| 67.5 | Appointed | Juan Bautista Pes Polo, O. Carm. † | Titular Bishop of Abila Lysaniae |
| 54.7 | Appointed | Leandro di Porzia (Porcia), O.S.B. † | Cardinal-Priest of San Callisto | Cardinal, Bishop Emeritus of Bergamo, Italy |
| 55.5 | Appointed | Bartolomeo Pucci Franceschi † | Bishop of Pescia, Italy |
| Born | Niccolò Angelo Sagredo † | Venezia | Bishop of Torcello (Turris), Italy |
| 49.7 | Appointed | Manuel Samaniego Jaca † | Archbishop of Burgos, Spain | Archbishop Emeritus |
| 26.3 | Appointed | Mihály Karl (Michele Carlo) von Althan † | Archbishop of Bari (-Canosa), Italy | Bishop of Vác, Hungary |
| 55.2 | Appointed | Alexius Antonius von Nassau † | Titular Archbishop of Trapezus |
| 21 Sep | 41.6 | Ordained Bishop | Alessandro Magno, O. Cist. † | Bishop of San Marco (Argentano), Italy |
| 45.4 | Appointed | Antonio Alejandro Sarmiento Sotomayor, O.S.B. † | Bishop of Mondoñedo, Spain |
| 25 Sep | | Appointed | Sylvester Lloyd, O.F.M. † | Bishop of Killaloe, Ireland | Bishop of Waterford and Lismore, Ireland |
| 26 Sep | 24.6 | Ordained Priest | Antônio de São José Moura Marinho, O.S.A. † | Priest of Order of St. Augustine | Archbishop of São Salvador da Bahia, Brazil |
| 50.8 | Ordained Bishop | Raimondo Pecchioli, O.P. † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 24.2 | Ordained Priest | Johann Joseph von Trautson zu Falkenstein (Trauston) † | Priest of Wien {Vienna}, Austria | Cardinal, Archbishop |
| 27.8 | Ordained Priest | Marcin Załuski † | Priest | Auxiliary Bishop Emeritus of Płock, Poland |
| Oct | 76.8 | Died | Antonius Babbi † | Bishop of Shkodrë (Scutari), Albania |
| Born | Giuseppe Antonio Farao † | Cuccaro | Bishop of San Severo, Italy |
| 1 Oct | | Born | Antonio Feliú y Centena † | Guardia de Arés, Spain | Bishop of Santiago de Cuba |
| 2 Oct | 40.5 | Died | Benedetto Bussi † | Bishop of Recanati e Loreto, Italy |
| 63.7 | Ordained Priest | Bartolomeo Fargna † | Priest | Titular Bishop of Emmaüs |
| 26.9 | Ordained Priest | Leopold Heinrich Wilhelm von Schorror † | Priest of Köln {Cologne}, Germany | Vicar Apostolic Emeritus of Upper and Lower Saxony (Hanover), Germany |
| 5 Oct | | Born | Jean Davoust, M.E.P. † | Mayenne, France | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viet Nam |
| 10 Oct | 70.8 | Ordained Bishop | Baltazar Wilksycki † | Titular Bishop of Eucarpia | Auxiliary Bishop of Poznań, Poland |
| 11 Oct | 71.4 | Died | Ulrich von Federspiel † | Bishop of Chur, Switzerland |
| 12 Oct | 18.8 | Professed | Nicolaus (Florentius) Szostak (a Jesu), O.C.D. † | Member of Order of Discalced Carmelites | Titular Bishop of Areopolis |
| 17 Oct | 22.9 | Ordained Priest | Isidoro Sanchez de Luna, O.S.B. † | Priest of Order of Saint Benedict | Archbishop Emeritus of Salerno, Italy |
| 24 Oct | 62.0 | Died | Nicolò Cervini † | Bishop of Lavello, Italy |
| 25 Oct | | Born | Pius Bonifacius Fassati, O.P. † | Casalen | Bishop Emeritus of Tortona, Italy |
| 63.1 | Died | François-Elie de Voyer de Paulmy d’Argenson † | Archbishop of Bordeaux, France |
| 28 Oct | 54.5 | Ordained Priest | Nicola Negrone † | Priest | Titular Archbishop of Sebastea |
| 30 Oct | 54.5 | Died | Francisco Mendigaño Armendáriz † | Archbishop of Santo Domingo, Dominican Republic |
| Nov | | Born | André Teixeira Palha † | Beja | Bishop of Faro {Algarve}, Portugal |
| 2 Nov | | Born | Antoine-Eléonore-Léon Le Clerc de Juigné † | Paris | Archbishop Emeritus of Paris, France |
| 4 Nov | 28.2 | Selected | Clemens August Maria von Bayern † | Bishop of Osnabrück, Germany | Archbishop of Köln {Cologne}, Germany |
| 6 Nov | 48.9 | Died | Andrés Murillo Velarde † | Bishop of Pamplona, Spain |
| 9 Nov | | Born | Fernando Spinelli † | Naples, Italy | Cardinal, Cardinal-Deacon of Santa Maria in Cosmedin |
| 12 Nov | 62.9 | Appointed | Francesco Maria Pitoni † | Titular Bishop of Himeria |
| 49.9 | Appointed | Francesco Saraceni, O.F.M. † | Titular Bishop of Loryma | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China |
| 14 Nov | 67.6 | Ordained Bishop | Juan Bautista Pes Polo, O. Carm. † | Titular Bishop of Abila Lysaniae |
| 62.9 | Ordained Bishop | Francesco Maria Pitoni † | Titular Bishop of Himeria |
| 15 Nov | 56.1 | Installed | Giuseppe Accoramboni † | Cardinal-Priest of Santa Maria in Traspontina | Cardinal, Cardinal-Bishop of Frascati |
| 42.3 | Appointed | Orontius Alfarano-Capece † | Titular Bishop of Oropus |
| 55.2 | Appointed | José Francisco Bermúdez Mandía † | Bishop of Astorga, Spain |
| 40.9 | Appointed | Fortunato Bisleti † | Titular Bishop of Cisamus |
| 56.3 | Appointed | Alessandro Caputo, O. Carm. † | Titular Bishop of Thagaste | Bishop of Mazara del Vallo, Italy |
| 51.4 | Installed | Pier Luigi Carafa (Jr.) † | Cardinal-Priest of San Lorenzo in Panisperna | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 63.9 | Appointed | Andrés Cid de San Pedro Fernández, O. Cist. † | Bishop of Orense, Spain |
| 68.8 | Appointed | Blasius de Vicariis † | Titular Bishop of Capharnaum |
| 51.3 | Appointed | Juan José de Escalona y Calatayud † | Bishop of Michoacán, México |
| 48.9 | Appointed | John Galata † | Bishop of Lezhë {Lesh, Alessio}, Albania | Archbishop of Durrës (Durazzo), Albania |
| 34.0 | Appointed | Sanctus de Inzillo † | Titular Bishop of Mylasa |
| 52.9 | Appointed | Dionysio Modinò † | Archbishop of Milos (Melos), Greece |
| 52.7 | Appointed | Dionigi Pieragostini † | Titular Bishop of Tricale | Bishop of San Severino (Marche), Italy |
| 60.9 | Appointed | Dominicus Sienieński † | Titular Bishop of Maronea |
| 36.9 | Appointed | Michael Somma † | Archbishop of Skopje, Macedonia | Archbishop Emeritus |
| 59.1 | Appointed | Caius Asterius Toppi † | Titular Bishop of Milevum |
| Appointed | Cosma Torrelli † | Bishop of Fabriano, Italy |
| 41.4 | Appointed | Francesco Trevisan Suarez † | Titular Bishop of Rithymnia | Bishop of Caorle, Italy |
| 39.7 | Appointed | José Félix Valverde † | Bishop of Caracas, Santiago de Venezuela | Bishop of Michoacán, México |
| 16 Nov | | Born | Cristoforo a São Boaventura, O.F.M. † | Guimaraes, Portugal | Bishop of Santiago de Cabo Verde |
| 18 Nov | 90.9 | Died | Michel Poncet de la Rivière † | Bishop of Uzés, France |
| 19 Nov | 65.9 | Died | Luka Lev Kiszka † | Archbishop of Kyiv-Halyč {Kiev} (Ruthenian), Ukraine |
| Born | Francesco Paolo Mandarani † | Vibo Valentia | Bishop of Nicastro, Italy |
| 21 Nov | 56.3 | Ordained Bishop | Alessandro Caputo, O. Carm. † | Titular Bishop of Thagaste | Bishop of Mazara del Vallo, Italy |
| 57.0 | Ordained Bishop | Pedro Espinosa de los Monteros, O.F.M. † | Bishop of Jaca, Spain |
| 23 Nov | | Born | Gennaro Clemente Francone † | Portici | Bishop of Troia, Italy |
| 25 Nov | 66.1 | Died | Louis François Rossius de Liboy † | Auxiliary Bishop of Liège, Belgium |
| 26 Nov | 59.9 | Selected | Jean d’Yse (d’Ize) de Saléon † | Bishop of Agen, France | Archbishop of Vienne, France |
| 69.2 | Selected | Antoine-Joseph-Amable Feydeau, O. Carm. † | Bishop of Digne, France |
| 31.9 | Selected | François de Lastic de Saint-Jal † | Bishop of Uzés, France | Bishop of Castres, France |
| 28 Nov | 63.9 | Died | Luis Francisco Romero † | Archbishop of La Plata o Charcas, Bolivia |
| Dec | 46.6 | Ordained Bishop | Agostino Bruti † | Titular Bishop of Cydonia (Agia, Canea) | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia |
| 52.9 | Ordained Bishop | Dionysio Modinò † | Archbishop of Milos (Melos), Greece |
| 2 Dec | | Appointed | Michael McDonough, O.P. † | Bishop of Kilmore, Ireland |
| 68.9 | Resigned | Hugh MacMahon (McMahon) † | Apostolic Administrator of Kilmore, Ireland | Archbishop of Armagh, Ireland |
| 6 Dec | | Born | Angelicus (Bartholomaeus) Benincasa, O.F.M. Cap. † | Sassuolo | Archbishop of Camerino, Italy |
| 8 Dec | 41.0 | Ordained Bishop | Fortunato Bisleti † | Titular Bishop of Cisamus |
| 9 Dec | | Born | Francisco Javier Cabrera Velasco † | Badajoz | Bishop of Avila, Spain |
| 11 Dec | 85.2 | Died | Angelo Cerasi † | Bishop of Bovino, Italy |
| Born | Marco de Leone † | Barletta | Bishop of Satriano e Campagna, Italy |
| 12 Dec | | Ordained Bishop | Michael McDonough, O.P. † | Bishop of Kilmore, Ireland |
| 13 Dec | 32.8 | Selected | Joseph Benedikt von Rost † | Bishop of Chur, Switzerland |
| 14 Dec | 50.7 | Selected | Juan Leandro Gómez de Parada Valdez y Mendoza † | Bishop of Guatemala (Santiago de Guatemala), Guatemala | Bishop of Guadalajara, Jalisco, México |
| 15 Dec | 47.4 | Appointed | Alessandro degli Abbati † | Titular Bishop of Philadelphia in Arabia |
| 41.1 | Appointed | Baltasar Bastero Lladó † | Bishop of Gerona, Spain | Bishop Emeritus |
| 52.7 | Appointed | Andrea Carlovich † | Bishop of Arbe (Rab), Croatia |
| 49.2 | Appointed | Pedro Copóns Copóns † | Archbishop of Tarragona, Spain |
| 61.0 | Appointed | Carolus Ludovicus Hugo, O. Praem. † | Titular Bishop of Ptolemais in Phoenicia |
| 37.9 | Confirmed | Jacques-Charles-Alexandre Lallemant † | Bishop of Sées, France |
| 39.3 | Appointed | Enrique Lasso de la Vega † | Titular Bishop of Thaumacus |
| 41.0 | Appointed | Basilio Lindi † | Bishop of Sapë, Albania |
| 43.9 | Appointed | José Francisco Magdaleno † | Auxiliary Bishop of Segovia, Spain | Bishop of Coria, Spain |
| 43.9 | Appointed | José Francisco Magdaleno † | Titular Bishop of Teos | Bishop of Coria, Spain |
| 47.0 | Appointed | Joannes Paulus Maricone, C.R.S. † | Titular Bishop of Hippos |
| 31.9 | Appointed | Vincenzo Antonio Maria Muscettola † | Bishop of Recanati e Loreto, Italy |
| 54.7 | Appointed | Nicola Negrone † | Titular Archbishop of Sebastea |
| 27.1 | Appointed | Leopold Heinrich Wilhelm von Schorror † | Titular Bishop of Helenopolis in Bithynia | Vicar Apostolic Emeritus of Upper and Lower Saxony (Hanover), Germany |
| 54.3 | Appointed | Francesco Silvestri † | Bishop of Lavello, Italy |
| Born | Giacinto Amedeo Vagnone † | Trofarello | Bishop Emeritus of Alba (Pompea), Italy |
| 18 Dec | 23.3 | Ordained Priest | Bartholomaeus Amoroso † | Priest | Bishop of Crotone (Cotrone), Italy |
| 26.1 | Ordained Priest | Tommaso Mazza † | Priest | Bishop of Castellammare di Stabia, Italy |
| 24.4 | Ordained Priest | Giambattista Pensa † | Priest | Bishop of Fossano, Italy |
| 23.0 | Ordained Priest | Gennaro Perrelli † | Priest | Bishop of Penne e Atri, Italy |
| 23.0 | Ordained Priest | Stefano Gennaro Spani † | Priest | Bishop of Minervino Murge, Italy |
| 23.5 | Ordained Priest | Antonio Tripcovich † | Priest | Bishop of Nona (Nin), Croatia |
| 21 Dec | 27.1 | Ordained Bishop | Leopold Heinrich Wilhelm von Schorror † | Titular Bishop of Helenopolis in Bithynia | Vicar Apostolic Emeritus of Upper and Lower Saxony (Hanover), Germany |
| 22 Dec | | Born | Paolo Patricio Fava Ghisleri † | Piacenza | Archbishop of Ferrara, Italy |
| Died | Edward Murphy † | Archbishop of Dublin, Ireland |
| 23 Dec | 28.3 | Confirmed | Clemens August Maria von Bayern † | Bishop of Osnabrück, Germany | Archbishop of Köln {Cologne}, Germany |
| 25 Dec | 33.7 | Ordained Priest | Federico Marcello Lante Montefeltro Della Rovere † | Priest | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 32.0 | Ordained Bishop | Vincenzo Antonio Maria Muscettola † | Bishop of Recanati e Loreto, Italy |
| 26 Dec | 52.7 | Ordained Bishop | Andrea Carlovich † | Bishop of Arbe (Rab), Croatia |
| 27 Dec | 47.4 | Ordained Bishop | Alessandro degli Abbati † | Titular Bishop of Philadelphia in Arabia |
| 31 Dec | 45.1 | Ordained Priest | Anselm Franz von Ingelheim † | Priest of Würzburg, Germany | Bishop |
| 54.4 | Ordained Bishop | Francesco Silvestri † | Bishop of Lavello, Italy |