| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Joseph IX Ragi (Youssef) El-Khazen (Gazeno) † | | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| Born | Giacomo Bellucci † | | Bishop-Elect of Sovana (Soana), Italy |
| 78.3 | Selected | [Guillaume Besaucèle] † | Bishop of [Aude (Constitutional), France] |
| 47.4 | Died | Jean-Jacques Bouguet, C.S.Sp. † | Prefect Emeritus of Iles Saint-Pierre et Miquelon |
| 37.0 | Appointed | Crescenzio Cavalli, O.F.M. † | Vicar Apostolic of Hukwang, Shansi [Shanxi], and Shensi [Shaanxi], China |
| 67.1 | Selected | [Bernard Font] † | Bishop of [Ariège (Constitutional), France] |
| 72.9 | Died | Donato Antonio Giannelli † | Bishop of Bisceglie, Italy |
| 25.1 | Ordained Priest | Felipe González Abarca, O. de M. † | Priest of Order of Our Lady of Mercy | Bishop of Santander, Spain |
| 64.2 | Died | Joseph IV (Lazare Timothée) Hindi † | Patriarch Emeritus of Babylon {Babilonia} (Chaldean), Iraq |
| 54.0 | Resigned | Stefan Lewiński † | Auxiliary Bishop of Kyiv-Halyč {Kiev} (Ukrainian), Ukraine | Bishop of Lutsk and Ostroh (Ukrainian), Ukraine |
| Born | [Vasyl Luzhynskyi (Luzynskyj)] † | | Archbishop |
| 23.1 | Ordained Priest | Giorgio Manurita † | Priest | Bishop of Ogliastra, Italy |
| 75.2 | Died | Prospero Celestino Meloni † | Bishop of Narni, Italy |
| 68.2 | Died | Giuseppe Monticelli † | Bishop of Ugento, Italy |
| Appointed | Paul Pandari † | Archbishop |
| Ordained Bishop | Paul Pandari † | Archbishop |
| 24.8 | Ordained Priest | Alexander Paterson † | Priest | Vicar Apostolic of Eastern District, Scotland, Great Britain |
| 26.0 | Ordained Priest | Thomas Scallan, O.F.M. Ref. † | Priest of Order of Reformed Friars Minor | Vicar Apostolic of Newfoundland, Canada |
| Appointed | Mathieu Simon † | Bishop of Amadiyah (Chaldean), Iraq |
| 24.9 | Ordained Priest | Juan Baltasar Toledano † | Priest of Valladolid, Spain | Bishop |
| Born | Daniel Vaughan † | | Bishop of Killaloe, Ireland |
| Born | Antonius van Dyck † | | Coadjutor Vicar Apostolic of Breda, Netherlands |
| 50.9 | Resigned | Antonio Felice Zondadari † | Apostolic Nuncio to Belgium | Cardinal, Archbishop of Siena, Italy |
| 8 Jan | 66.4 | Died | Francesco Agoselli † | Bishop of Cesena, Italy |
| 9 Jan | 47.9 | Ordained Bishop | Tymoteusz Pawel von Gorzeński † | Bishop of Smoleńsk, Poland | Archbishop of Gniezno e Poznań, Poland |
| 12 Jan | 39.9 | Selected | Giovanni Battista Pio Vitale † | Bishop of Alba (Pompea), Italy | Bishop of Mondovi, Italy |
| 13 Jan | 66.2 | Died | Ugone Papé di Valdina † | Bishop of Mazara del Vallo, Italy |
| 14 Jan | 77.0 | Died | Gabriel Cortois de Quincey † | Bishop of Belley, France |
| 55.4 | Died | José do Menino Jesus (Deus), O.C.D. † | Bishop of Viseu, Portugal |
| 26 Jan | 84.1 | Died | Ignacy Augustyn Kozierowski, C.R.L.A. † | Auxiliary Bishop of Gniezno, Poland |
| 30 Jan | 38.8 | Ordained Bishop | Ramón Falcón y Salcedo † | Titular Bishop of Thaumacus | Bishop of Cuenca, Spain |
| 31 Jan | 42.0 | Selected | [Gabriel Deville] † | Bishop of [Pyrénées-Orientales (Constitutional), France] | Bishop Emeritus |
| 40.6 | Selected | Omobono Offredi † | Bishop of Cremona, Italy |
| Feb | 41.3 | Selected | [Pierre Pontard] † | Bishop of [Dordogne (Constitutional), France] | Bishop Emeritus |
| 4 Feb | 37.8 | Selected | [Claude Eustache François Marolles] † | Bishop of [Aisne (Constitutional), France] |
| 6 Feb | 23.2 | Ordained Priest | Carlos de São José de Azevedo e Sousa, O.F.M. Obs. † | Priest of Order of Observant Friars Minor | Bishop of Guarda, Portugal |
| 69.0 | Selected | [René Héraudin] † | Bishop of [Indre (Constitutional), France] | Bishop Emeritus |
| 62.0 | Selected | [Hugues Pelletier] † | Bishop of [Maine-et-Loire (Constitutional), France] | Bishop Emeritus |
| Born | Frederick John Conrad Résé (Reze) † | | Bishop of Detroit, Michigan, USA |
| 57.3 | Selected | [Jean-Baptiste Royer] † | Bishop of [Ain (Constitutional), France] | Bishop Emeritus of [Paris (Constitutional), France] |
| 47.2 | Ordained Bishop | Wojciech Józef Skarszewski † | Bishop of Chełm and Lublin, Poland | Archbishop of Warszawa {Warsaw}, Poland |
| 10 Feb | 60.7 | Selected | Sigismund Anton von Hohenwart, S.J. † | Bishop of Trieste, Italy | Archbishop of Wien {Vienna}, Austria |
| 13 Feb | 51.8 | Selected | [Paul-Benoît Barthe] † | Bishop of [Gers (Constitutional), France] | Bishop Emeritus |
| 45.9 | Ordained Bishop | Joseph Anton Blatter † | Bishop of Sion {Sitten}, Switzerland |
| 14 Feb | 50.6 | Selected | Jean-François Périer † | Bishop of [Puy-de-Dôme (Constitutional), France] | Bishop Emeritus of Avignon, France |
| Born | William Wareing † | | Bishop Emeritus of Northampton, England, Great Britain |
| 15 Feb | 42.1 | Selected | [Léonard Honoré Gay de Vernon] † | Bishop of [Haute-Vienne (Constitutional), France] | Bishop Emeritus |
| 51.2 | Selected | [Jean-Louis Gouttes] † | Bishop of [Saône-et-Loire (Constitutional), France] |
| 46.2 | Selected | [François-Xavier Laurent] † | Bishop of [Allier (Constitutional), France] | Bishop Emeritus |
| 47.2 | Selected | [Robert Thomas Lindet] † | Bishop of [Eure (Constitutional), France] | Bishop Emeritus |
| 50.0 | Selected | [Philippe Charles François Seguin] † | Bishop of [Doubs (Constitutional), France] | Bishop Emeritus |
| 16 Feb | 57.9 | Selected | Jean-Pierre Saurine † | Bishop of [Landes (Constitutional), France] | Bishop of Strasbourg, France |
| 56.8 | Selected | [Jean-Baptiste Volfius] † | Bishop of [Côte-d'Or (Constitutional), France] | Bishop Emeritus |
| 17 Feb | 62.1 | Selected | [Jacques-Guillaume-René-François Prudhomme de la Boussinière des Vallées] † | Bishop of [Sarthe (Constitutional), France] | Bishop Emeritus |
| 18 Feb | 40.2 | Selected | [Henri Grégoire] † | Bishop of [Loir-et-Cher (Constitutional), France] |
| 21 Feb | 54.8 | Selected | [Jean Baptiste Aubry] † | Bishop of [Meuse (Constitutional), France] | Bishop Emeritus |
| 51.9 | Selected | [François Marbos] † | Bishop of [Drôme (Constitutional), France] | Bishop Emeritus |
| 22 Feb | 58.9 | Selected | François Bécherel † | Bishop of [Manche (Constitutional), France] | Bishop of Valence, France |
| 63.8 | Selected | [Jean Joseph Brival] † | Bishop of [Corrèze (Constitutional), France] |
| 55.5 | Selected | [Guillaume Tollet] † | Bishop of [Nièvre (Constitutional), France] | Bishop Emeritus |
| 23 Feb | 47.4 | Selected | [Jean-Baptiste Massieu] † | Bishop of [Oise (Constitutional), France] | Bishop Emeritus |
| 51.2 | Selected | [Charles Benoît Roux] † | Bishop of [Bouches-du-Rhône (Constitutional), France] |
| 24 Feb | 49.0 | Ordained Bishop | [Louis Alexandre Expilly] † | Bishop of [Finistère (Constitutional), France] |
| Born | Mariano Fernández Fortique † | | Bishop of Guayana, Venezuela |
| 52.9 | Selected | [Jacques-André-Simon Le Fessier] † | Bishop of [Orne (Constitutional), France] | Bishop Emeritus |
| 90.1 | Died | Giulio Cesare Lomellino, C.R. † | Bishop of Luni e Sarzana, Italy |
| 37.8 | Ordained Bishop | [Claude Eustache François Marolles] † | Bishop of [Aisne (Constitutional), France] |
| 27 Feb | 51.5 | Selected | [Jean Danglars] † | Bishop of [Lot (Constitutional), France] | Bishop Emeritus |
| 57.3 | Selected | [René Lecesve] † | Bishop of [Vienne (Constitutional), France] |
| 57.1 | Ordained Bishop | Stefan Wojciech von Łubieński † | Titular Bishop of Byblus | Auxiliary Bishop of Gniezno, Poland |
| 43.5 | Selected | Claude-François-Marie Primat, C.O. † | Bishop of [Nord (Constitutional), France] | Archbishop of Toulouse, France |
| 57.9 | Ordained Bishop | Jean-Pierre Saurine † | Bishop of [Landes (Constitutional), France] | Bishop of Strasbourg, France |
| 28 Feb | 58.1 | Selected | [Étienne Delcher] † | Bishop of [Haute-Loire (Constitutional), France] | Bishop Emeritus |
| 43.1 | Selected | [Jean-Baptiste Dumouchel] † | Bishop of [Gard (Constitutional), France] | Bishop Emeritus |
| 50.1 | Selected | Claude Le Coz † | Bishop of [Ille-et-Vilaine (Constitutional), France] | Archbishop of Besançon, France |
| Born | Josip Schrott † | | Bishop of Beograd (-Smederevo), Serbia |
| Mar | 66.0 | Died | Stefano (Ildefonso) Ortiz Cortes, O.S.B. † | Bishop of Mottola (Motula), Italy |
| 1 Mar | 42.8 | Selected | [Jean Antoine Maudru] † | Bishop of [Vosges (Constitutional), France] | Bishop Emeritus |
| 59.2 | Selected | [Isaac-Étienne Robinet] † | Bishop of [Charente-Inférieure (Constitutional), France] | Bishop Emeritus |
| 62.0 | Selected | [Barthélémy-Jean-Baptiste Sanadon] † | Bishop of [Basses-Pyrénées (Constitutional), France] |
| 2 Mar | 48.7 | Selected | [Antoine Adrien Lamourette], C.M. † | Bishop of [Rhône-et-Loire (Constitutional), France] | Bishop Emeritus |
| 70.3 | Selected | [Joseph Pouchot] † | Bishop of [Isère (Constitutional), France] |
| 3 Mar | 16.3 | Professed | José Hilarión de Etura y Cevallos (Ceballos), O.P. † | Member of Order of Friars Preachers | Auxiliary Bishop of San Juan de Cuyo, Argentina |
| 69.6 | Selected | [Dominique Pouderoux] † | Bishop of [Hérault (Constitutional), France] |
| 6 Mar | 55.4 | Selected | [François-Antoine Brendel] † | Bishop of [Bas-Rhin (Constitutional), France] | Bishop Emeritus |
| 69.0 | Ordained Bishop | [René Héraudin] † | Bishop of [Indre (Constitutional), France] | Bishop Emeritus |
| 46.2 | Ordained Bishop | [François-Xavier Laurent] † | Bishop of [Allier (Constitutional), France] | Bishop Emeritus |
| 47.3 | Ordained Bishop | [Robert Thomas Lindet] † | Bishop of [Eure (Constitutional), France] | Bishop Emeritus |
| Born | John MacHale † | | Archbishop of Tuam, Ireland |
| 47.4 | Ordained Bishop | [Jean-Baptiste Massieu] † | Bishop of [Oise (Constitutional), France] | Bishop Emeritus |
| 8 Mar | 79.3 | Died | Domenico de Dominicis † | Bishop of Ortona a Mare e Campli, Italy |
| 42.3 | Selected | [Pierre Matthieu Joubert] † | Bishop of [Charente (Constitutional), France] | Bishop Emeritus |
| 9 Mar | 44.1 | Selected | [Ignace de Cazeneuve] † | Bishop of [Hautes-Alpes (Constitutional), France] | Bishop Emeritus |
| Born | Pietro Raffaelli † | | Bishop of Reggio Emilia, Italy |
| 10 Mar | | Born | Józef Grzegorz Wojtarowicz † | | Bishop Emeritus of Tarnów, Poland |
| 11 Mar | 59.1 | Died | Francesco Paolo Perremuto, O.S.B. † | Archbishop of Messina, Italy |
| 13 Mar | 54.9 | Ordained Bishop | [Jean Baptiste Aubry] † | Bishop of [Meuse (Constitutional), France] | Bishop Emeritus |
| 51.9 | Ordained Bishop | [Paul-Benoît Barthe] † | Bishop of [Gers (Constitutional), France] | Bishop Emeritus |
| 55.4 | Ordained Bishop | [François-Antoine Brendel] † | Bishop of [Bas-Rhin (Constitutional), France] | Bishop Emeritus |
| 63.9 | Ordained Bishop | [Jean Joseph Brival] † | Bishop of [Corrèze (Constitutional), France] |
| 42.2 | Ordained Bishop | [Léonard Honoré Gay de Vernon] † | Bishop of [Haute-Vienne (Constitutional), France] | Bishop Emeritus |
| 40.2 | Ordained Bishop | [Henri Grégoire] † | Bishop of [Loir-et-Cher (Constitutional), France] |
| 52.4 | Selected | [Julien Minée] † | Bishop of [Loire-Inférieure (Constitutional), France] | Bishop Emeritus |
| 62.1 | Ordained Bishop | [Hugues Pelletier] † | Bishop of [Maine-et-Loire (Constitutional), France] | Bishop Emeritus |
| 66.3 | Ordained Bishop | [Nicolas Philbert], C.M. † | Bishop of [Ardennes (Constitutional), France] |
| 62.2 | Ordained Bishop | [Jacques-Guillaume-René-François Prudhomme de la Boussinière des Vallées] † | Bishop of [Sarthe (Constitutional), France] | Bishop Emeritus |
| 87.0 | Died | Pierre-François-Xavier de Reboul de Lambert † | Bishop of Saint-Paul-Trois-Châteaux, France |
| 56.9 | Ordained Bishop | [Jean-Baptiste Volfius] † | Bishop of [Côte-d'Or (Constitutional), France] | Bishop Emeritus |
| 14 Mar | 74.5 | Died | Alexander Fé † | Titular Bishop of Methone |
| 49.5 | Selected | [Jean-Marie Jacob] † | Bishop of [Côtes-du-Nord (Constitutional), France] |
| 15 Mar | 41.8 | Selected | [Éléonore-Marie Desbois de Rochefort] † | Bishop of [Somme (Constitutional), France] | Bishop Emeritus |
| 59.0 | Selected | [Jean-Baptiste Flavigny] † | Bishop of [Haute-Saône (Constitutional), France] | Bishop Emeritus |
| 41.2 | Selected | [Jean Joachim Gausserand] † | Bishop of [Tarn (Constitutional), France] |
| 79.4 | Selected | [Pierre Pacareau] † | Bishop of [Gironde (Constitutional), France] |
| 43.5 | Selected | [Anne-Alexandre-Marie Thibault] † | Bishop of [Cantal (Constitutional), France] | Bishop Emeritus |
| 60.0 | Selected | [Pierre Thuin] † | Bishop of [Seine-et-Marne (Constitutional), France] | Bishop Emeritus |
| 16 Mar | 55.4 | Selected | [Nicolas Francin] † | Bishop of [Moselle (Constitutional), France] |
| 58.0 | Selected | [Pierre Suzor] † | Bishop of [Indre-et-Loire (Constitutional), France] | Bishop Emeritus |
| 17 Mar | 63.5 | Selected | [Jean-Baptiste-Joseph Gobel] † | Bishop of [Paris (Constitutional), France] |
| 81.6 | Died | Augstín González Pisador † | Bishop of Oviedo, Spain |
| Born | José Manuel de Lemos † | | Bishop of Coimbra, Portugal |
| 19 Mar | 47.2 | Selected | [Nicolas Diot] † | Bishop of [Marne (Constitutional), France] |
| 23.2 | Ordained Priest | Jean-Joseph-Pierre Guigou † | Priest | Bishop of Angoulême, France |
| 20 Mar | 59.0 | Ordained Bishop | François Bécherel † | Bishop of [Manche (Constitutional), France] | Bishop of Valence, France |
| 69.8 | Selected | [Charles Bonnet] † | Bishop of [Eure-et-Loir (Constitutional), France] |
| 42.8 | Ordained Bishop | [Jean Antoine Maudru] † | Bishop of [Vosges (Constitutional), France] | Bishop Emeritus |
| 58.1 | Selected | [Jean-Guillaume Molinier] † | Bishop of [Hautes-Pyrénées (Constitutional), France] | Bishop Emeritus |
| 59.3 | Ordained Bishop | [Isaac-Étienne Robinet] † | Bishop of [Charente-Inférieure (Constitutional), France] | Bishop Emeritus |
| 21 Mar | 66.4 | Selected | [Augustin Sibille] † | Bishop of [Aube (Constitutional), France] | Bishop Emeritus |
| 22 Mar | 42.2 | Selected | [Noël-Gabriel-Luce de Villar] † | Bishop of [Mayenne (Constitutional), France] | Bishop Emeritus |
| 23 Mar | 52.8 | Selected | Louis Charrier de La Roche † | Bishop of [Seine-Inférieure (Constitutional), France] | Bishop of Versailles, France |
| 40.8 | Selected | [Claude Debertier] † | Bishop of [Aveyron (Constitutional), France] | Bishop Emeritus |
| 65.0 | Selected | [Étienne Nogaret] † | Bishop of [Lozère (Constitutional), France] | Bishop Emeritus |
| 25 Mar | 64.1 | Selected | [Jean-Baptiste Romée de Villeneuve] † | Bishop of [Basses-Alpes (Constitutional), France] |
| 27 Mar | 49.5 | Ordained Bishop | [Jean Julien Avoine] † | Bishop of [Seine-et-Oise (Constitutional), France] |
| 69.8 | Ordained Bishop | [Charles Bonnet] † | Bishop of [Eure-et-Loir (Constitutional), France] |
| 42.3 | Ordained Bishop | [Pierre Matthieu Joubert] † | Bishop of [Charente (Constitutional), France] | Bishop Emeritus |
| 48.8 | Ordained Bishop | [Antoine Adrien Lamourette], C.M. † | Bishop of [Rhône-et-Loire (Constitutional), France] | Bishop Emeritus |
| 57.4 | Ordained Bishop | [René Lecesve] † | Bishop of [Vienne (Constitutional), France] |
| 50.7 | Ordained Bishop | Jean-François Périer † | Bishop of [Puy-de-Dôme (Constitutional), France] | Bishop Emeritus of Avignon, France |
| 47.3 | Selected | [Pierre-Joseph Porion] † | Bishop of [Pas-de-Calais (Constitutional), France] | Bishop Emeritus |
| 23.2 | Ordained Priest | Patrick Ryan † | Priest | Bishop of Ferns, Ireland |
| 50.1 | Ordained Bishop | [Philippe Charles François Seguin] † | Bishop of [Doubs (Constitutional), France] | Bishop Emeritus |
| 60.0 | Ordained Bishop | [Pierre Thuin] † | Bishop of [Seine-et-Marne (Constitutional), France] | Bishop Emeritus |
| 55.6 | Ordained Bishop | [Guillaume Tollet] † | Bishop of [Nièvre (Constitutional), France] | Bishop Emeritus |
| 28 Mar | 58.9 | Selected | [Antoine Pascal Hyacinthe Sermet] † | Bishop of [Haute-Garonne (Constitutional), France] | Bishop Emeritus |
| 29 Mar | 53.0 | Died | Stefano Giustiniani † | Bishop of Albenga, Italy |
| 67.3 | Selected | [Charles Le Masle] † | Bishop of [Morbihan (Constitutional), France] | Bishop Emeritus |
| 59.9 | Selected | [Arbogast Martin] † | Bishop of [Haut-Rhin (Constitutional), France] |
| 59.9 | Selected | [Antoine-Hubert Wandelaincourt] † | Bishop of [Haute-Marne (Constitutional), France] |
| 30 Mar | 48.2 | Selected | [François Xavier Moise] † | Bishop of [Jura (Constitutional), France] | Bishop Emeritus |
| 3 Apr | 44.2 | Ordained Bishop | [Ignace de Cazeneuve] † | Bishop of [Hautes-Alpes (Constitutional), France] | Bishop Emeritus |
| 51.6 | Ordained Bishop | [Jean Danglars] † | Bishop of [Lot (Constitutional), France] | Bishop Emeritus |
| 58.2 | Ordained Bishop | [Étienne Delcher] † | Bishop of [Haute-Loire (Constitutional), France] | Bishop Emeritus |
| 41.9 | Ordained Bishop | [Éléonore-Marie Desbois de Rochefort] † | Bishop of [Somme (Constitutional), France] | Bishop Emeritus |
| 43.2 | Ordained Bishop | [Jean-Baptiste Dumouchel] † | Bishop of [Gard (Constitutional), France] | Bishop Emeritus |
| 55.5 | Ordained Bishop | [Nicolas Francin] † | Bishop of [Moselle (Constitutional), France] |
| 41.2 | Ordained Bishop | [Jean Joachim Gausserand] † | Bishop of [Tarn (Constitutional), France] |
| 51.3 | Ordained Bishop | [Jean-Louis Gouttes] † | Bishop of [Saône-et-Loire (Constitutional), France] |
| 53.0 | Ordained Bishop | [Jacques-André-Simon Le Fessier] † | Bishop of [Orne (Constitutional), France] | Bishop Emeritus |
| 52.1 | Ordained Bishop | [François Marbos] † | Bishop of [Drôme (Constitutional), France] | Bishop Emeritus |
| 79.5 | Ordained Bishop | [Pierre Pacareau] † | Bishop of [Gironde (Constitutional), France] |
| 41.5 | Ordained Bishop | [Pierre Pontard] † | Bishop of [Dordogne (Constitutional), France] | Bishop Emeritus |
| 70.4 | Ordained Bishop | [Joseph Pouchot] † | Bishop of [Isère (Constitutional), France] |
| 69.6 | Ordained Bishop | [Dominique Pouderoux] † | Bishop of [Hérault (Constitutional), France] |
| 51.3 | Ordained Bishop | [Charles Benoît Roux] † | Bishop of [Bouches-du-Rhône (Constitutional), France] |
| 57.4 | Ordained Bishop | [Jean-Baptiste Royer] † | Bishop of [Ain (Constitutional), France] | Bishop Emeritus of [Paris (Constitutional), France] |
| 66.5 | Ordained Bishop | [Augustin Sibille] † | Bishop of [Aube (Constitutional), France] | Bishop Emeritus |
| 87.1 | Died | Antonio Spedalieri † | Bishop of Bova, Italy |
| 43.5 | Ordained Bishop | [Anne-Alexandre-Marie Thibault] † | Bishop of [Cantal (Constitutional), France] | Bishop Emeritus |
| 8 Apr | 77.1 | Died | Saverio Palica, O.S.B. † | Bishop of Andria, Italy |
| 9 Apr | 61.2 | Resigned | Manuel Abad y Lasierra, O.S.B. † | Bishop of Astorga, Spain | Bishop Emeritus |
| Born | Bartolomeo Casati † | | Bishop of Cremona, Italy |
| 24.2 | Ordained Deacon | Antoine Casimir Libère de Stockem † | Deacon of Liège, Belgium | Auxiliary Bishop |
| 10 Apr | 52.8 | Ordained Bishop | Louis Charrier de La Roche † | Bishop of [Seine-Inférieure (Constitutional), France] | Bishop of Versailles, France |
| 59.1 | Ordained Bishop | [Jean-Baptiste Flavigny] † | Bishop of [Haute-Saône (Constitutional), France] | Bishop Emeritus |
| 50.3 | Ordained Bishop | Claude Le Coz † | Bishop of [Ille-et-Vilaine (Constitutional), France] | Archbishop of Besançon, France |
| 59.9 | Ordained Bishop | [Arbogast Martin] † | Bishop of [Haut-Rhin (Constitutional), France] |
| 52.5 | Ordained Bishop | [Julien Minée] † | Bishop of [Loire-Inférieure (Constitutional), France] | Bishop Emeritus |
| 48.3 | Ordained Bishop | [François Xavier Moise] † | Bishop of [Jura (Constitutional), France] | Bishop Emeritus |
| 47.4 | Ordained Bishop | [Pierre-Joseph Porion] † | Bishop of [Pas-de-Calais (Constitutional), France] | Bishop Emeritus |
| 43.7 | Ordained Bishop | Claude-François-Marie Primat, C.O. † | Bishop of [Nord (Constitutional), France] | Archbishop of Toulouse, France |
| 58.1 | Ordained Bishop | [Pierre Suzor] † | Bishop of [Indre-et-Loire (Constitutional), France] | Bishop Emeritus |
| 59.9 | Ordained Bishop | [Antoine-Hubert Wandelaincourt] † | Bishop of [Haute-Marne (Constitutional), France] |
| 11 Apr | 41.2 | Appointed | Francesco Borzi † | Archbishop of Bar (Antivari), Montenegro |
| 59.6 | Appointed | Ignazio Busca † | Chamberlain (Camerlengo) of the College of Cardinals | Cardinal, Cardinal-Priest of Santa Maria degli Angeli |
| 74.4 | Appointed | Francesco Carrara † | Cardinal, Cardinal-Priest of San Silvestro in Capite |
| 43.5 | Appointed | Marco (Matteo) Crescesi † | Bishop of Shkodrë (Scutari), Albania |
| 53.6 | Appointed | Ramón José de Estrada y Orgas † | Bishop of Santa Cruz de la Sierra, Bolivia |
| 55.6 | Appointed | Bartolomé Fabro Palacios † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 36.7 | Appointed | Józef Arnulf Giedroyć † | Titular Bishop of Orthosias in Caria | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 36.7 | Confirmed | Józef Arnulf Giedroyć † | Coadjutor Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania | Bishop |
| 60.9 | Appointed | Francisco Isidoro Gutiérrez Vigil † | Bishop of Astorga, Spain |
| 59.0 | Appointed | Alejandro José de Ochoa y Morillo † | Bishop of La Paz, Bolivia |
| 55.6 | Appointed | Kajetan Maria (Ignaz Judas Thaddäus) Reisach, C.R. † | Titular Bishop of Dibon (Dibona) |
| 50.4 | Confirmed | Joseph von Stubenberg † | Bishop of Eichstätt, Germany | Archbishop of Bamberg, Germany |
| 53.5 | Appointed | Antonio Tavira Almazán † | Bishop of Islas Canarias {Canary Islands}, Spain | Bishop of Salamanca, Spain |
| 64.2 | Selected | [Pierre-Anastase Torné] † | Bishop of [Cher (Constitutional), France] | Bishop Emeritus |
| 40.1 | Confirmed | Giovanni Battista Pio Vitale † | Bishop of Alba (Pompea), Italy | Bishop of Mondovi, Italy |
| 12 Apr | 55.5 | Selected | [Jean-Joseph Rigouard] † | Bishop of [Var (Constitutional), France] |
| 13 Apr | 63.6 | Removed | [Jean-Baptiste-Joseph Gobel] † | Auxiliary Bishop of Basel, Switzerland | Bishop of [Paris (Constitutional), France] |
| 63.6 | Removed | [Jean-Baptiste-Joseph Gobel] † | Titular Bishop of Lydda | Bishop of [Paris (Constitutional), France] |
| 49.1 | Selected | Charles de La Font de Savines † | Bishop of [Ardèche (Constitutional), France] | Bishop Emeritus of Viviers (Aps), France |
| 68.6 | Removed | Jean-Baptiste Miroudot Du Bourg, O. Cist. † | Bishop of Baghdad, Iraq | Bishop Emeritus |
| 37.1 | Resigned | Charles-Maurice de Talleyrand-Périgord † | Bishop of Autun, France | |
| 19 Apr | 46.5 | Selected | [Claude François Fauchet] † | Bishop of [Calvados (Constitutional), France] |
| 22 Apr | 57.4 | Died | [René Lecesve] † | Bishop of [Vienne (Constitutional), France] |
| 23 Apr | 22.9 | Ordained Priest | Pierre-Marie Cottret † | Priest | Bishop of Beauvais, France |
| 24.0 | Ordained Priest | Salvator Ferro de Berardis † | Priest | Bishop of Catania, Italy |
| 24.7 | Ordained Priest | Carlo Fontanini, C.M. † | Priest of Congregation of the Mission | Bishop of Concordia (Sagittaria), Italy |
| 24.1 | Ordained Priest | Giovanni Battista Iacobini † | Priest | Bishop of Bagnoregio (Bagnorea), Italy |
| 23.0 | Ordained Priest | José Francisco da Soledade Bravo † | Priest | Bishop of Portalegre, Portugal |
| 26 Apr | 42.3 | Ordained Bishop | [Gabriel Deville] † | Bishop of [Pyrénées-Orientales (Constitutional), France] | Bishop Emeritus |
| Appointed | Arseniusz Główniewski, O.S.B.M. † | Coadjutor Bishop of Volodymyr (Włodzimierz) et Brėst (Ukrainian) |
| 58.2 | Ordained Bishop | [Jean-Guillaume Molinier] † | Bishop of [Hautes-Pyrénées (Constitutional), France] | Bishop Emeritus |
| 62.2 | Ordained Bishop | [Barthélémy-Jean-Baptiste Sanadon] † | Bishop of [Basses-Pyrénées (Constitutional), France] |
| 59.0 | Ordained Bishop | [Antoine Pascal Hyacinthe Sermet] † | Bishop of [Haute-Garonne (Constitutional), France] | Bishop Emeritus |
| 64.2 | Ordained Bishop | [Pierre-Anastase Torné] † | Bishop of [Cher (Constitutional), France] | Bishop Emeritus |
| 40.2 | Ordained Bishop | Giovanni Battista Pio Vitale † | Bishop of Alba (Pompea), Italy | Bishop of Mondovi, Italy |
| 28 Apr | 65.5 | Died | Charles-Joseph de Raffélis de Saint-Sauveur † | Bishop of Tulle, France |