| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 46.4 | Ordained Bishop | Antonio Baistrocchi, O. Carm. † | Titular Bishop of Anastasiopolis | Vicar Apostolic of Great Moghul (Mughals), India |
| Born | James Brady † | | Bishop of Ardagh (and Clonmacnois), Ireland |
| Born | Thomas Burke (de Burgo), O.P. † | Dublin | Bishop of Ossory, Ireland |
| Born | Deodatus de Chaumont de Mareuil † | Namur | Titular Bishop of Sion |
| Born | Antoine de Lastic † | Sieuzac | Bishop of Chalons-sur-Marne, France |
| Died | Deodat Bogdan Nersesowicz † | Coadjutor Archbishop of Lviv (Armenian), Ukraine |
| Born | Gioacchino Maria Pontalti, O. Carm. † | Veronae | Bishop Emeritus of Hvar (Lesina), Croatia |
| 74.0 | Died | Juan Queipo de Llano y Valdés † | Archbishop of La Plata o Charcas, Bolivia |
| Born | Joseph-Antoine-Jacques Richier de Cérisy † | Cérisy-la-Salle | Bishop of Lombez, France |
| 61.0 | Died | Michael Rossiter † | Bishop of Ferns, Ireland |
| Appointed | Pedro Solerá Montoya † | Prelate of Santa Lucia del Mela, Italy |
| Born | Antonio Vigliarolo † | Stilo, Italy | Auxiliary Bishop of Ostia (-Velletri), Italy |
| Jan | 60.0 | Died | Stanislaw Franciszek Biegański, O.F.M. Conv. † | Bishop of Bacău, Romania |
| 66.4 | Died | Giovanni Battista Sanudo † | Bishop of Treviso, Italy |
| 5 Jan | 60.3 | Died | Giuseppe Placido De Pace † | Bishop of Oppido Mamertina, Italy |
| 11 Jan | 69.7 | Died | Leandro Colloredo, C.O. † | Cardinal, Cardinal-Priest of Santa Maria in Trastevere |
| 17 Jan | | Born | Giovanni Ottavio Bufalini † | Città di Castello | Cardinal, Bishop of Ancona e Numana, Italy |
| 19 Jan | 48.0 | Died | Bernard-François de Poudenx de Castillon † | Bishop of Marseille, France |
| 20 Jan | 61.2 | Ordained Bishop | Francisco a São Agostinho, T.O.R. † | Bishop of Santiago de Cabo Verde |
| 23 Jan | 69.5 | Died | Nicola Cirillo † | Bishop of Nicastro, Italy |
| 24 Jan | | Appointed | Luca Natale † | Bishop of Beograd {Belgrade}, Serbia |
| 25 Jan | 57.8 | Appointed | Fabrizio Paolucci † | Pro-Major Penitentiary of the Apostolic Penitentiary | Cardinal, Secretary of the Secretariat of State |
| 27 Jan | 25.0 | Ordained Priest | Vincenzo Maria d’Aragona, O.P. † | Priest of Order of Friars Preachers | Archbishop of Cosenza, Italy |
| 28 Jan | 43.3 | Appointed | Francesco Acquaviva d’Aragona † | Cardinal-Priest of Santa Cecilia | Cardinal, Cardinal-Bishop of Sabina |
| 61.1 | Appointed | Wojciech Ignacy Bardziński † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 61.1 | Appointed | Wojciech Ignacy Bardziński † | Titular Bishop of Sarepta | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 53.7 | Appointed | Michelangelo dei Conti † | Archbishop (Personal Title) of Osimo, Italy | Pope (Roma {Rome}, Italy) |
| 29 Jan | 45.4 | Appointed | Tommaso Ruffo † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Archbishop Emeritus of Ferrara, Italy |
| Feb | 50.1 | Ordained Bishop | Rodrigo Marín Rubio † | Bishop of Segorbe, Spain | Bishop of Jaén, Spain |
| 78.0 | Died | Giuseppe Pianetti † | Bishop of Todi, Italy |
| 2 Feb | 52.5 | Appointed | Claude Visdelou, S.J. † | Vicar Apostolic of Foreign Vicariate |
| 52.5 | Appointed | Claude Visdelou, S.J. † | Titular Bishop of Claudiopolis in Isauria | Vicar Apostolic of Foreign Vicariate |
| 3 Feb | | Born | Hieronymus Blasius Bonaccich † | Milnae | Bishop of Šibenik (Knin), Croatia |
| 6 Feb | | Born | Donato Maria Arcangeli † | Arezzo | Bishop of Pescia, Italy |
| 7 Feb | 52.5 | Ordained Bishop | Claude Visdelou, S.J. † | Titular Bishop of Claudiopolis in Isauria | Vicar Apostolic of Foreign Vicariate |
| 10 Feb | 50.2 | Ordained Priest | Camillo Spreti † | Priest | Bishop of Cervia, Italy |
| 12 Feb | | Born | Jacobus Maria de Tarsia, O.M. † | Cusentin | Bishop of Martirano (Martoranum), Italy |
| 14 Feb | 75.1 | Died | Andres Gonzalez, O.P. † | Bishop of Nueva Caceres, Philippines |
| 17 Feb | | Born | Nicola Ferri † | Sassano | Bishop of Satriano e Campagna, Italy |
| 63.1 | Died | Konstantyn Józef Zieliński † | Archbishop of Lviv, Ukraine |
| 23 Feb | 24.5 | Ordained Priest | Johann Hugo von Gärtz † | Priest of Trier, Germany | Auxiliary Bishop of Osnabrück, Germany |
| 25 Feb | | Born | Joseph-Nicolas de Montenach † | Fribourg | Bishop of Lausanne, Switzerland |
| 2 Mar | | Born | Charles-François de Pélissier de Saint-Ferréol † | Visan | Bishop Emeritus of Vaison, France |
| 10 Mar | | Born | Nicolò Cicirelli † | Morra | Bishop of Gravina (di Puglia), Italy |
| 56.1 | Died | Vidal Marin Fernandez † | Bishop of Ceuta, Spain |
| Ordained Bishop | Pedro Gregorio Padilla † | Bishop of Barbastro, Spain | Bishop of Huesca, Spain |
| 20 Mar | 63.2 | Died | Alvaro Benavente, O.S.A. † | Vicar Apostolic of Kiam-Si {Kiangsi}, China |
| 30 Mar | 40.0 | Ordained Bishop | Philipp Carl von Fürstenberg † | Bishop of Lavant, Slovenia |
| 5 Apr | 38.3 | Selected | Henri-François-Xavier de Belsunce de Castelmoron † | Bishop of Marseille, France |
| 6 Apr | 54.7 | Appointed | Agostino Steffani † | Vicar Apostolic of Upper and Lower Saxony (Hanover), Germany |
| 7 Apr | 35.3 | Ordained Priest | Girolamo Grimaldi † | Priest | Cardinal, Cardinal-Priest of Santa Balbina |
| 12 Apr | 67.9 | Died | Jaroslav František Ignác von Sternberg (Šternberka) † | Bishop of Litoměřice, Czech Republic |
| 15 Apr | 48.0 | Appointed | Giovanni Vincenzo Castelli, O.P. † | Archbishop of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 58.5 | Elevated to Cardinal | Ulisse Giuseppe Gozzadini † | Cardinal, Bishop of Imola, Italy |
| 46.4 | Appointed | Francesco Saverio Guicciardi † | Bishop of Narni, Italy | Bishop of Cesena, Italy |
| 49.2 | Elevated to Cardinal | Antonio Francesco Sanvitale † | In Pectore | Cardinal, Archbishop of Urbino, Italy |
| 50.4 | Appointed | Camillo Spreti † | Bishop of Cervia, Italy |
| 41.8 | Appointed | Vincenzo Vecchiarelli † | Bishop of Nepi e Sutri, Italy |
| 17 Apr | 90.5 | Died | Lorenzo Fabbri (Fabri), O.F.M. Conv. † | Bishop of Fossombrone, Italy |
| 20 Apr | 45.5 | Succeeded | Franz Anton von Harrach zu Rorau † | Archbishop of Salzburg, Austria |
| 65.8 | Died | Johann Ernst von Thun † | Archbishop of Salzburg, Austria |
| 24 Apr | 57.9 | Died | Michele Petirro † | Bishop of Pozzuoli, Italy |
| 25 Apr | | Died | Domingos Barata, O.SS.T. † | Bishop of Portalegre, Portugal |
| 26 Apr | 27.2 | Selected | Charles-François des Moustiers de Mérinville † | Coadjutor Bishop of Chartres, France | Bishop |
| 30 Apr | 63.3 | Died | Bernard (Bertrand) de Sénaux † | Bishop of Autun, France |
| May | | Born | Jan Szemiot † | Calvarien Vercovien | Titular Bishop of Loryma |
| 51.1 | Died | Pedro Lázaro y Terrer, O.F.M. † | Bishop of Ugento, Italy |
| 4 May | 48.1 | Resigned | Giovanni Vincenzo Castelli, O.P. † | Archbishop of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 6 May | 67.6 | Appointed | Antonio Antonelli † | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 40.3 | Confirmed | Manuel González Virtus † | Bishop of Córdoba (Tucumán), Argentina |
| 41.0 | Appointed | Alessandro Felice Mercanti, O.P. † | Archbishop of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia |
| 57.5 | Appointed | Francesco Parcic (Parchich), O.P. † | Bishop of Kotor (Cattaro), Montenegro |
| 49.2 | Appointed | Antonio Francesco Sanvitale † | Cardinal, Archbishop of Urbino, Italy |
| 71.3 | Appointed | Domenico De Zaulis (Zaoli) † | Titular Archbishop of Teodosia | Bishop Emeritus of Veroli, Italy |
| 10 May | | Born | Francisco Alejandro Bocanegra Jivaja † | Santa Cruz del Comercio | Archbishop of Santiago de Compostela, Spain |
| 15 May | 55.1 | Ordained Bishop | Marcelino Siuri Navarro † | Bishop of Orense, Spain | Bishop of Córdoba, Spain |
| 18 May | | Appointed | Charles Andrault de Maulevrier de Langeron † | Bishop of Autun, France | Bishop Emeritus |
| 21 May | 46.5 | Ordained Bishop | Francesco Saverio Guicciardi † | Bishop of Narni, Italy | Bishop of Cesena, Italy |
| 25 May | 23.0 | Ordained Priest | Johann Christoph von Crass † | Priest of Paderborn, Germany | Auxiliary Bishop |
| 23.1 | Ordained Priest | Gerolamo Fonda † | Priest | Bishop of Trogir (Traù), Croatia |
| 29.4 | Ordained Priest | Thomas John Francis de Strickland de Sizorghe † | Priest | Bishop of Namur {Namen}, Belgium |
| 26 May | 61.4 | Died | Baldassare Cenci (Sr.) † | Cardinal, Archbishop of Fermo, Italy |
| 27 May | 45.7 | Installed | Franz Anton von Harrach zu Rorau † | Archbishop of Salzburg, Austria |
| 28.6 | Selected | Adamus Ratkay † | Bishop of Senj (-Modruš), Croatia |
| 8 Jun | | Born | Paolo Da Ponte, O.C.D. † | Venezia | Bishop of Torcello (Turris), Italy |
| 9 Jun | | Born | François de Fitz-James † | Saint-Germain-en-Laye | Bishop of Soissons, France |
| 92.5 | Died | Gilles de La Baume le Blanc de la Valière † | Bishop Emeritus of Nantes, France |
| 11 Jun | 51.9 | Died | Marcello d’Aste † | Bishop of Ancona e Numana, Italy | Cardinal, Apostolic Nuncio to Germany |
| 15 Jun | | Born | Filippo Mazzetti † | Saluggia | Bishop of Fossano, Italy |
| 19 Jun | 48.2 | Appointed | Giovanni Vincenzo Castelli, O.P. † | Titular Archbishop of Marcianopolis | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| 48.6 | Resigned | Francesco Maria de’ Medici † | Cardinal-Deacon of Santa Maria in Domnica | |
| 58.7 | Appointed | Ulisse Giuseppe Gozzadini † | Cardinal-Priest of Santa Croce in Gerusalemme | Cardinal, Bishop of Imola, Italy |
| 53.2 | Appointed | Giovanni Manola † | Bishop of Nona (Nin), Croatia |
| 66.5 | Appointed | Carlo Palma † | Bishop of Fossombrone, Italy |
| 20 Jun | | Appointed | Gregorius Jugovich, O.S.B.M. † | Titular Bishop of Plataea |
| 24 Jun | | Born | Jean-Baptiste-Amédée de Grégoire de Saint-Sauveur † | Mende | Bishop of Bazas, France |
| Jul | 61.5 | Ordained Bishop | Wojciech Ignacy Bardziński † | Titular Bishop of Sarepta | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| Born | Bartolomeo Coccoli † | Arpino | Bishop of Montepeloso, Italy |
| 5 Jul | | Born | Augstín González Pisador † | La Nava del Rey | Bishop of Oviedo, Spain |
| 10 Jul | | Born | Georges-Gaspard-Alexis de Plan des Augiers † | Digne | Bishop of Die, France |
| 14 Jul | | Born | Luigi del Giudice, O.S.B. † | Chieti | Archbishop of Chieti, Italy |
| 17 Jul | | Born | Giovanni Carlo Bandi † | Cesena | Cardinal, Bishop of Imola, Italy |
| 22 Jul | 38.8 | Appointed | Tomás de Almeida † | Bishop of Porto, Portugal | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal |
| 65.6 | Appointed | Tomaso Giustiniani † | Bishop of Nebbio, France |
| 41.3 | Appointed | João de Sahagún, O.A.D. † | Bishop of São Tomé e Príncipe |
| 49.4 | Elevated to Cardinal | Antonio Francesco Sanvitale † | Cardinal, Archbishop of Urbino, Italy |
| 30 Jul | | Born | Marco Molin, O.S.B. † | Venezia | Bishop of Bergamo, Italy |
| Aug | 60.6 | Died | Marco de Rama, O.S.A. † | Bishop of Crotone (Cotrone), Italy |
| 68.7 | Died | Giovanni Girolamo Naselli † | Bishop of Luni e Sarzana, Italy |
| 4 Aug | 25.4 | Ordained Priest | Sante Veronese † | Priest | Cardinal, Bishop of Padova {Padua}, Italy |
| 6 Aug | 49.2 | Selected | Hugo František (Franz) von Königsegg-Rothenfels † | Bishop of Litoměřice, Czech Republic |
| 7 Aug | | Born | Antonio Cantoni † | Faenza | Archbishop of Ravenna, Italy |
| 11 Aug | 65.6 | Died | Gaetano Caracciolo, C.R. † | Archbishop of Conza, Italy |
| 35.4 | Ordained Priest | Joseph de Guyon de Crochans † | Priest | Archbishop of Avignon, France |
| 19 Aug | | Born | François Mattei † | Rome | Patriarch of Alexandria {Alessandria} |
| 22 Aug | | Born | Enea Silvio Piccolomini † | Siena, Italy | Cardinal, Cardinal-Deacon of Sant’Adriano al Foro |
| 30 Aug | 28.1 | Appointed | Jakob Maximilian von Thun und Hohenstein † | Bishop of Gurk, Austria |
| 1 Sep | | Born | Vito Antonio Mastrandrea † | Giovenazzo | Bishop of Vico Equense, Italy |
| 9 Sep | 45.8 | Appointed | Imre Esterházy, O.S.P.P.E. † | Bishop of Zagreb (Agram), Croatia | Archbishop of Esztergom, Hungary |
| 35.5 | Appointed | Joseph de Guyon de Crochans † | Bishop of Cavaillon, France | Archbishop of Avignon, France |
| 49.6 | Installed | Antonio Francesco Sanvitale † | Cardinal-Priest of San Pietro in Montorio | Cardinal, Archbishop of Urbino, Italy |
| 14 Sep | 41.6 | Appointed | Vincenzo Bichi † | Apostolic Nuncio to Portugal | Cardinal, Cardinal-Bishop of Frascati |
| 74.7 | Died | Luis Manuel Fernández de Portocarrero-Bocanegra y Moscoso-Osorio † | Cardinal, Archbishop of Toledo, Spain |
| Appointed | John Verdon † | Bishop of Ferns, Ireland |
| 19 Sep | | Born | Eugenio Benedetto Scaramuccia † | Campoli | Bishop of San Severo, Italy |
| 20 Sep | 64.7 | Died | Ignacio Diez de la Barrera † | Bishop of Durango, México |
| 21 Sep | 52.1 | Died | Matteo Gennaro Sibilia † | Bishop of San Marco (Argentano), Italy |
| 23 Sep | 24.6 | Ordained Priest | Amand Buseck, O.S.B. † | Priest of Order of Saint Benedict | Bishop of Fulda, Germany |
| 80.7 | Died | Benedetto Luperti † | Bishop of Cagli, Italy |
| Born | Giuseppe Simonetti † | Castelnuovo di Farfa, Italy | Cardinal, Cardinal-Priest of San Marcello |
| 26 Sep | 27.6 | Selected | Charles-François des Moustiers de Mérinville † | Bishop of Chartres, France |
| 62.3 | Died | Paul Godet des Marais † | Bishop of Chartres, France |
| Oct | 56.6 | Died | Domenico Catalani † | Bishop of Termoli, Italy |
| Born | Josephus Proszynski † | Minscen | Titular Bishop of Mennith |
| Born | Gerardus a S. Joseph, O.P. † | Cacilhas | Bishop of Malacca, Singapore |
| 74.8 | Died | Pietro de Torres † | Archbishop of Trani, Italy |
| 9 Oct | | Born | Jean-Baptiste de Belloy-Morangle † | Morangles | Cardinal, Archbishop of Paris, France |
| 11 Oct | | Born | Giuseppe Belletta (Bellotti) † | Napoli | Bishop of Massa Lubrense, Italy |
| 14 Oct | 47.1 | Appointed | Domenico Antonio Gagliano, C.R. † | Bishop of Lettere (-Gragnano), Italy |
| 49.6 | Appointed | Filippo Antonio Gualterio † | Archbishop (Personal Title) of Todi, Italy | Cardinal, Bishop Emeritus |
| 33.4 | Appointed | Sigismund Kollonitsch † | Bishop of Vác, Hungary | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 67.8 | Died | Jacques Potier de Novion † | Bishop of Evreux, France |
| 28 Oct | | Born | Konstantin Schütz von Holzhausen, O.S.B. † | Haßfurt | Auxiliary Bishop of Fulda, Germany |
| 3 Nov | 68.5 | Died | Vincenzo Lupi, O.F.M. † | Bishop of Stagno (Ston), Croatia |
| 17 Nov | | Born | António Joaquim Torrão † | Serpa | Auxiliary Bishop of Évora, Portugal |
| 24 Nov | 65.9 | Died | José Gregorio de Rojas y Velázquez † | Bishop of Plasencia, Spain |
| 28 Nov | 40.3 | Died | Marco Antonio de Rosa † | Bishop of Policastro, Italy |
| 30 Nov | | Born | Giacomo Cingari † | Bologna | Bishop of Gubbio, Italy |
| Dec | 60.0 | Died | Giovanni Giuseppe Bonaventura † | Bishop of Ascoli Piceno, Italy |
| 7 Dec | 33.5 | Ordained Bishop | Sigismund Kollonitsch † | Bishop of Vác, Hungary | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 11 Dec | | Born | Francisco José de Palencia † | Canarias, Spain | Bishop of Comayagua, Honduras |
| 15 Dec | 46.8 | Appointed | Giulio Piazza † | Apostolic Nuncio to Austria | Cardinal, Archbishop (Personal Title) of Faenza, Italy |
| 17 Dec | 66.0 | Died | Gerolamo Ventimiglia, C.R. † | Bishop of Lipari, Italy |
| 19 Dec | | Born | Ludovico Das Chagas, O.S.A. † | Alcabedigues, Portugal | Bishop of São Tomé e Príncipe |
| 21 Dec | 59.0 | Died | Francesco Bonesana, C.R. † | Bishop of Como, Italy |
| Born | Arnaud-François Lefèbvre, M.E.P. † | Calais, France | Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| 23.1 | Ordained Priest | Francesco Antonio Spadea † | Priest | Bishop Emeritus of Aquino e Pontecorvo, Italy |
| Born | Giuseppe Sparano † | Napoli | Archbishop of Acerenza e Matera, Italy |