| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 23.6 | Ordained Priest | Louis-Joseph Adhémar de Monteil de Grignan † | Priest | Bishop of Carcassonne, France |
| 25.8 | Ordained Priest | Basilio Brollo, O.F.M. † | Priest of Order of Friars Minor | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China |
| Died | William Burgat † | Archbishop of Cashel, Ireland |
| Born | Giovanni Battista Costantini † | S. Caesarei | Bishop of Castro di Puglia, Italy |
| Born | Giovanni De Lerma † | Tricarico | Archbishop Emeritus of Manfredonia, Italy |
| Born | Jean-Armand de La Vove de Tourouvre † | Normandie | Bishop of Rodez, France |
| Born | Jan-Baptist de Smet † | | Bishop of Gent {Ghent, Gand}, Belgium |
| 24.2 | Ordained Priest | Johann Franz von Eckher von Kapfing und Liechteneck † | Priest | Bishop of Freising, Germany |
| 69.6 | Resigned | Léonor de Goyon de Matignon (I) † | Bishop of Lisieux, France | Bishop Emeritus |
| Born | Girolamo Grimaldi † | Genoa, Italy | Cardinal, Cardinal-Priest of Santa Balbina |
| Born | Denis-Alexandre Le Blanc, C.R.S.A. † | Vitry | Bishop of Sarlat, France |
| 53.0 | Died | Daniel Mackey † | Bishop of Dromore, Ireland |
| Born | Nicolas de Malezieu † | Paris | Bishop of Lavaur, France |
| 16.0 | Professed | Gerolamo Ubertino Provana, C.R. † | Member of Congregation of Clerics Regular | Bishop of Alba (Pompea), Italy |
| Born | Francisco da Purification, O.S.A. † | Coccinen, India | Bishop of Peking [Beijing], China |
| Died | Claude Ruffier † | Bishop of Saint-Paul-Trois-Châteaux, France |
| Born | Pietro Scurra † | Dyrrachien | Archbishop of Durrës (Durazzo), Albania |
| 17.0 | Ordained Priest | Francisco Solís Hervás, O. de M. † | Priest of Order of Our Lady of Mercy | Bishop of Córdoba, Spain |
| Born | José de Toro y Zambrano † | Santiago | Bishop of Concepción, Chile |
| Born | Ernst August von Braunschweig-Lüneburg † | | Bishop of Osnabrück, Germany |
| Jan | | Died | Raffaele de Palma † | Bishop of Oria, Italy |
| 2 Jan | 60.0 | Installed | Kazimierz Florian Czartoryski † | Archbishop of Gniezno, Poland |
| Born | Andrea Duranti † | Brescia | Titular Bishop of Chytri |
| 3 Jan | 57.0 | Appointed | Grégoire Lo(u) Wen-tsao (López), O.P. † | Vicar Apostolic of Nanking [Nanjing], China | Bishop of Nanking [Nanjing], China |
| 57.0 | Appointed | Grégoire Lo(u) Wen-tsao (López), O.P. † | Titular Bishop of Basilinopolis | Bishop of Nanking [Nanjing], China |
| 12 Jan | 42.0 | Died | Antonio do Espirito Santo, O.C.D. † | Bishop of Angola e Congo, Angola |
| 14 Jan | | Born | Giovanni Battista Sanna † | Sassari | Bishop of Ales e Terralba, Italy |
| 15 Jan | 49.0 | Appointed | Petrus Alberini † | Titular Archbishop of Nicomedia |
| 57.0 | Installed | Pietro Bassdonna † | Cardinal, Cardinal-Deacon of Santa Maria in Domnica |
| 21 Jan | | Born | Stephan Cloth, O.S.B. † | Hemen | Auxiliary Bishop of Fulda, Germany |
| 53.1 | Died | Matteo di Génnaro † | Archbishop of Reggio Calabria, Italy |
| 28 Jan | 49.1 | Ordained Bishop | Johannes Brassert † | Titular Bishop of Daulia | Auxiliary Bishop of Speyer, Germany |
| 32.8 | Ordained Bishop | Adrian von Riedmatten (IV) † | Bishop of Sion {Sitten}, Switzerland |
| 44.1 | Ordained Bishop | Johannes Schmitzberger, O.S.B. † | Titular Bishop of Helenopolis in Bithynia | Auxiliary Bishop of Wien, Austria |
| 29 Jan | | Born | Tommaso Alessio de’ Rossi † | Nardo | Bishop of Teramo, Italy |
| 30 Jan | 64.1 | Died | Matteo Benlich, O.F.M. † | Bishop of Beograd {Belgrade}, Serbia |
| 4 Feb | 16.0 | Professed | Vincenzo Ferrero, O.P. † | Member of Order of Friars Preachers | Bishop of Lucera, Italy |
| 8 Feb | 73.1 | Died | Fabio dos Reis Fernandes, O. Carm. † | Bishop of Santiago de Cabo Verde |
| 12 Feb | 60.8 | Died | Juan López, O.P. † | Archbishop of Manila, Philippines |
| 13 Feb | 23.2 | Ordained Priest | Angelus d’Ongnies et d’Estrées, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop of Roermond, Netherlands |
| 14 Feb | | Born | Gaspare Pizzolanti, O. Carm. † | Leucati | Bishop of Cervia, Italy |
| 17 Feb | 24.9 | Ordained Priest | Diego Ibáñez de la Madrid y Bustamente † | Priest | Bishop of Ceuta, Spain |
| 19 Feb | 43.7 | Appointed | Vincenzo Bonifacio † | Titular Bishop of Famagusta |
| 37.1 | Appointed | Manuel Fernández de Santa Cruz y Sahagún † | Bishop of Guadalajara, Jalisco, México | Bishop of Tlaxcala, México |
| 46.1 | Appointed | Fabio Guinigi † | Archbishop of Ravenna, Italy |
| 50.7 | Resigned | Paluzzo Paluzzi Altieri Degli Albertoni † | Archbishop of Ravenna, Italy | Cardinal, Archbishop Emeritus |
| 30.5 | Appointed | Vincenzo Ragni, O.S.B. † | Bishop of Oppido Mamertina, Italy |
| 44.4 | Appointed | Muzio Soriano † | Archbishop of Santa Severina, Italy |
| 23 Feb | 72.1 | Selected | Jaume Mas † | Bishop of Vic, Spain |
| 24 Feb | 43.7 | Ordained Bishop | Vincenzo Bonifacio † | Titular Bishop of Famagusta |
| 46.1 | Ordained Bishop | Fabio Guinigi † | Archbishop of Ravenna, Italy |
| Appointed | Polykarp Wilhelm von Kuenburg † | Bishop of Gurk, Austria |
| 27 Feb | | Died | Bartolomé de Foncalda (Fontcalda), O.S.A. † | Bishop of Huesca, Spain |
| Mar | | Born | Carlo Maria Giuseppe Fornari † | Ianuen | Bishop Emeritus of Albenga, Italy |
| Born | Joannes Bapt. Senzasoni † | Nursiae Spoletan | Titular Bishop of Olympus (Olimpus) |
| 3 Mar | | Born | Friedrich Karl von Schönborn † | Mainz | Bishop of Würzburg, Germany |
| 4 Mar | 49.2 | Ordained Bishop | Petrus Alberini † | Titular Archbishop of Nicomedia |
| 30.5 | Ordained Bishop | Vincenzo Ragni, O.S.B. † | Bishop of Oppido Mamertina, Italy |
| 44.4 | Ordained Bishop | Muzio Soriano † | Archbishop of Santa Severina, Italy |
| 6 Mar | 69.2 | Died | Pietro Lanfranconi, O.S.A. † | Bishop of Terni, Italy |
| 10 Mar | 49.2 | Appointed | Johannes Brassert † | Auxiliary Bishop of Mainz, Germany | Auxiliary Bishop of Speyer, Germany |
| 23.3 | Ordained Priest | Raimondo Ferretti † | Priest | Archbishop of Ravenna, Italy |
| 12 Mar | 40.2 | Appointed | Giuseppe Bologna † | Archbishop of Benevento, Italy | Archbishop of Capua, Italy |
| 42.9 | Appointed | Pierre de Bonzi † | Cardinal, Archbishop of Narbonne, France |
| Appointed | Marcos Bravo de la Serna Manrique † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 60.4 | Appointed | Joannes Lucidus Cataneo † | Bishop of Mantova, Italy |
| Appointed | Filippo Cesarini † | Bishop of Nola, Italy |
| 56.2 | Confirmed | Simón García Pedrejón, O.F.M. † | Bishop of Tui, Spain | Bishop of Oviedo, Spain |
| 13 Mar | 72.2 | Appointed | Jan Gembicki † | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 54.2 | Succeeded | Bonaventura Madaliński † | Bishop of Płock, Poland | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 19 Mar | 25.5 | Ordained Priest | Giuseppe Placido De Pace † | Priest | Bishop of Oppido Mamertina, Italy |
| Born | Joseph de Guyon de Crochans † | Avignon | Archbishop of Avignon, France |
| 24 Mar | 40.2 | Ordained Priest | Johann Hugo von Orsbeck † | Priest of Trier, Germany | Archbishop |
| 43.1 | Ordained Priest | Francesco Picarelli † | Priest | Bishop of Narni, Italy |
| 25.7 | Ordained Priest | Bartolomeo Rosa † | Priest | Bishop of Lavello, Italy |
| 25 Mar | 36.8 | Ordained Bishop | Louis Laneau, M.E.P. † | Titular Bishop of Metellopolis | Vicar Apostolic of Siam, Thailand |
| 69.2 | Died | Giacinto Torisi (Tarugi), O.P. † | Bishop of Venosa, Italy |
| 31 Mar | 30.2 | Confirmed | Franz Caspar von Stadion † | Bishop of Lavant, Slovenia |
| Apr | 78.3 | Died | Gabriel Adarzo de Santander, O. de M. † | Archbishop of Otranto, Italy |
| 2 Apr | | Ordained Bishop | Polykarp Wilhelm von Kuenburg † | Bishop of Gurk, Austria |
| 8 Apr | 60.4 | Ordained Bishop | Joannes Lucidus Cataneo † | Bishop of Mantova, Italy |
| 12 Apr | | Born | Abraham Petros I Ardzivian † | Aintab | Patriarch of Cilicia (Armenian), Lebanon |
| 13 Apr | 76.3 | Died | Gioavnni Battista Imperiali, C.R. † | Bishop of Aleria, France |
| 16 Apr | 52.3 | Confirmed | Andrés Aznar Naves, O.S.A. † | Bishop of Teruel, Spain |
| 46.8 | Confirmed | Juan de Ortega Cano Montañez y Patiño † | Bishop of Durango, México | Archbishop of México, Federal District |
| 50.3 | Appointed | Manoel a Nativitate do Nascimento, O.S.H. † | Bishop of São Tomé e Príncipe |
| 56.5 | Appointed | Lothar Friedrich von Metternich-Burscheid † | Bishop of Worms, Germany | Archbishop of Mainz, Germany |
| 51.3 | Appointed | Ramon Sureda † | Titular Bishop of Oropus |
| 17 Apr | | Born | Nicola Negrone † | Januen | Titular Archbishop of Sebastea |
| 22 Apr | | Born | Cosimo Torelli † | Forolivien | Bishop of Camerino, Italy |
| 29 Apr | 59.3 | Died | Pietro Martire Rusca, O.F.M. Conv. † | Bishop of Caorle, Italy |
| 6 May | 69.2 | Installed | Juan de Almoguera, O.SS.T. † | Archbishop of Lima, Peru |
| 7 May | 46.1 | Appointed | Giovanni Battista Desio † | Bishop of Venosa, Italy |
| 50.3 | Appointed | Raffaele Riario Di Saono, O.S.B. † | Bishop of Montepeloso, Italy |
| 86.3 | Died | Wolther Heinrich von Strevesdorff † | Auxiliary Bishop of Mainz, Germany |
| 12 May | 64.4 | Died | Francesco Maria Annoni, C.R. † | Bishop of Muro Lucano, Italy |
| 14 May | | Born | Archangelus Feni, O.P. † | Siviano | Archbishop of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia |
| 15 May | 60.4 | Died | Kazimierz Florian Czartoryski † | Archbishop of Gniezno, Poland |
| 16 May | 46.1 | Ordained Bishop | Giovanni Battista Desio † | Bishop of Venosa, Italy |
| 50.4 | Ordained Bishop | Raffaele Riario Di Saono, O.S.B. † | Bishop of Montepeloso, Italy |
| 17 May | 54.4 | Died | Francesco Giuseppe Crespos de Escobar † | Bishop of Agrigento (Girgenti), Italy |
| Born | Francisco Mendigaño Armendáriz † | Astrain, Spain | Archbishop of Santo Domingo, Dominican Republic |
| 19 May | 25.4 | Ordained Priest | Giuseppe Sauli Bargali (Bargagli), C.R.M. † | Priest of Clerics Regular Minor | Bishop of Noli, Italy |
| Installed | Francisco Verdín y Molina † | Bishop of Michoacán, México |
| 21 May | | Died | Havryil Kolenda † | Archbishop of Kyiv-Halyč {Kiev} (Ruthenian), Ukraine |
| Succeeded | Cyprianus Zochowski † | Archbishop of Kyiv-Halyč {Kiev} (Ruthenian), Ukraine |
| 22 May | 68.4 | Died | Francisco de Gamboa, O.S.A. † | Archbishop of Zaragoza, Spain |
| 29 May | 30.4 | Ordained Bishop | Franz Caspar von Stadion † | Bishop of Lavant, Slovenia |
| 3 Jun | 49.4 | Ordained Bishop | Juan Aparicio Navarro † | Bishop of Lugo, Spain | Bishop of León, Spain |
| 4 Jun | | Died | Giovanni Agostino Marliani † | Bishop of Reggio Emilia, Italy |
| 6 Jun | 34.4 | Selected | Luc d’Aquin † | Bishop of Saint-Paul-Trois-Châteaux, France | Bishop Emeritus of Fréjus, France |
| 7 Jun | | Born | Antonio Maria Pallavicini † | Cremona | Titular Patriarch of Antiochia {Antioch} |
| 9 Jun | 58.4 | Died | Alfonso Bravo de Laguna, O.F.M. † | Bishop of Nicaragua |
| 11 Jun | 34.4 | Confirmed | Luc d’Aquin † | Bishop of Saint-Paul-Trois-Châteaux, France | Bishop Emeritus of Fréjus, France |
| 14 Jun | 76.5 | Died | Benito Sanchez de Herrera † | Bishop of Pozzuoli, Italy |
| 19 Jun | | Born | Pietro Carlo Benedetti † | Taranto | Bishop of Spoleto, Italy |
| 22 Jun | | Born | Francesco Antonio Bussolini, O.S.B. † | Atri | Bishop of Penne e Atri, Italy |
| 23 Jun | | Born | Luigi Maria de Dura, O.P. † | Napoli | Bishop of Castellaneta, Italy |
| 24 Jun | | Born | Armand-Gaston-Maximilien de Rohan de Soubise † | Paris | Cardinal, Bishop of Strasbourg, France |
| 25 Jun | 35.5 | Appointed | Mario Emmanuelle Durazzo † | Bishop of Aleria, France | Bishop of Accia and Mariana, France |
| 64.4 | Appointed | Matteo Orlando, O. Carm. † | Bishop of Cefalù, Italy |
| 26 Jun | 53.4 | Selected | Andrzej Olszowski † | Archbishop of Gniezno, Poland |
| 28 Jun | 69.5 | Died | Pierre de Bertier † | Bishop of Montauban, France |