| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 26.9 | Ordained Priest | João Paulino de Azevedo e Castro † | Priest | Bishop of Macau, China |
| 23.4 | Ordained Priest | Lajos Balós de Sipek (Balás) † | Priest | Bishop of Rožňava, Slovakia |
| 86.1 | Died | Emmanuele Francesco Barrutia y Croquer † | Auxiliary Bishop of Guatemala |
| Appointed | Matthieu-Paul Chammina (Sciammina) † | Bishop of Zaku (Chaldean), Iraq | Archbishop of Sehna (Chaldean), Iran |
| 44.5 | Appointed | Vittore-Maria Corvaia, O.S.B. † | Coadjutor Abbot of Montevergine, Italy | Abbot Emeritus |
| 25.0 | Ordained Priest | Bernard Coyne † | Priest | Bishop of Elphin, Ireland |
| 28.4 | Professed | Joseph-Marie-Stanislas Dupont, M. Afr. † | Priest of Missionaries of Africa (White Fathers) | Vicar Apostolic Emeritus of Nyassa, Malawi |
| 26.6 | Professed | Joseph-Marie Lavest, M.E.P. † | Member of La Société des Missions Etrangères | Prefect of Kuamsi, China |
| 24.9 | Ordained Priest | Joseph-Marie Leray, M.S.C. † | Priest | Vicar Apostolic Emeritus of Gilbert Islands {Isole Gilbert}, Kiribati, Pacific (Oceania) |
| 16.2 | Professed | Auguste-Jean-Gabriel Maurice, O.F.M. † | Member of Order of Friars Minor | Vicar Apostolic Emeritus of Central Shensi/Chensi {Scen-Si Centrale}, China |
| Appointed | Athanase Nasser † | Patriarchal Vicar of Egypt and Sudan (Melkite Greek) |
| 25.5 | Ordained Priest | Paul Nègre † | Priest | Auxiliary Bishop Emeritus of Rodez (-Vabres), France |
| 50.0 | Resigned | José Ignacio Ordóñez † | Bishop of Bolivar, Ecuador | Archbishop of Quito, Ecuador |
| 24.5 | Ordained Priest | Emmanuel Alfonso van den Bosch, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Archbishop Emeritus of Agra, India |
| Born | Dmytro Yaremko † | | Titular Bishop |
| 3 Jan | 63.0 | Died | Djordje Marčić † | Bishop of Kotor (Cattaro), Montenegro |
| 5 Jan | 48.0 | Died | James McDevitt † | Bishop of Raphoe, Ireland |
| Born | Charles Daniel White † | Grand Rapids | Bishop of Spokane, Washington, USA |
| 14 Jan | | Born | Carlo Ilario Currea, S.J. † | Bogota | Prefect of Río Magdalena, Colombia |
| 76.2 | Died | Charles-Marie Magnin † | Bishop of Annecy, France |
| 15 Jan | 25.3 | Ordained Priest | William John Kenny † | Priest of Saint Augustine, Florida, USA | Bishop |
| 17 Jan | 28.8 | Professed | Hermann Joseph (Thomas) Esser, O.P. † | Priest of Order of Friars Preachers | Titular Bishop of Sinis |
| 21 Jan | 53.7 | Appointed | Valentin Garnier, S.J. † | Vicar Apostolic of Kiangnan, China |
| 53.7 | Appointed | Valentin Garnier, S.J. † | Titular Bishop of Titiopolis | Vicar Apostolic of Kiangnan, China |
| 23 Jan | | Born | Charles Eugène Klaeyle, O.M.I. † | Mutzig | Prefect Emeritus of Cimbebasia Inferiore, Namibia |
| 25 Jan | 58.0 | Died | Manuel Ulloa y Calvo † | Bishop of Nicaragua |
| 29 Jan | 80.4 | Died | Antonio Benedetto Antonucci † | Cardinal, Bishop of Ancona e Numana, Italy |
| 51.4 | Selected | Mihály Pável † | Bishop of Oradea Mare {Gran Varadino} (Romanian), Romania |
| 30 Jan | | Born | Johannes Baptist Dietz † | Birkach | Bishop Emeritus of Fulda, Germany |
| 1 Feb | | Born | Louis-Marie Raucaz, S.M. † | Verrens-Arvey, France | Vicar Apostolic of Southern Solomon Islands, Solomon Islands |
| 2 Feb | 24.8 | Ordained Priest | Luis María Niella † | Priest | Bishop of Corrientes, Argentina |
| 3 Feb | 50.6 | Selected | José Proceso Pozuelo y Herrero † | Bishop of Islas Canarias {Canary Islands}, Spain | Bishop of Córdoba, Spain |
| 4 Feb | 48.8 | Appointed | Antonio Galibert † | Bishop of Santorini {Thira}, Greece |
| 48.7 | Appointed | Elzear Torreggiani, O.F.M. Cap. † | Bishop of Armidale, Australia |
| 6 Feb | 74.2 | Retired | Domenico Cavallini Spadoni † | Archbishop of Spoleto, Italy | Archbishop Emeritus |
| 7 Feb | 44.4 | Appointed | Salvador Casañas y Pagés † | Apostolic Administrator of Urgell, Spain | Cardinal, Bishop of Barcelona, Spain |
| 44.4 | Appointed | Salvador Casañas y Pagés † | Titular Bishop of Ceramus | Cardinal, Bishop of Barcelona, Spain |
| 10 Feb | | Born | Lucas Guillermo Castillo Hernández † | San Casimiro | Archbishop of Caracas, Santiago de Venezuela |
| 13 Feb | 63.2 | Died | Salvatore Silvestris, C.SS.R. † | Bishop of Conversano, Italy |
| 15 Feb | | Born | Egisto Domenico Melchiori † | Bedizzole | Bishop of Tortona, Italy |
| 16 Feb | | Born | Antônio Manoel Pereira Ribeiro † | Friande | Bishop of Funchal, Portugal |
| 17 Feb | 67.9 | Resigned | Félix María Arrieta y Llano, O.F.M. Cap. † | Bishop of Cádiz y Ceuta, Spain | Bishop Emeritus |
| 18 Feb | 42.5 | Selected | Ioan Szabó † | Bishop of Gherla, Armenopoli, Szamos-Ujvár (Romanian), Romania |
| 19 Feb | 57.0 | Died | Thomas Patrick Roger Foley † | Coadjutor Bishop of Chicago, Illinois, USA |
| 23 Feb | | Born | Joseph Henry Leo Schlarman † | Bresse Township | Bishop of Peoria, Illinois, USA |
| 27 Feb | 63.6 | Died | Filippo Maria Guidi, O.P. † | Cardinal, Archbishop Emeritus of Bologna, Italy |
| 28 Feb | 39.2 | Confirmed | Pierre Elie XII Abboloyonan † | Patriarch of Babylon {Babilonia} (Chaldean), Iraq |
| 57.7 | Confirmed | Francisco Aznar y Pueyo † | Bishop of Tortosa, Spain |
| 56.0 | Appointed | Francesco Battaglini † | Bishop of Rimini, Italy | Cardinal, Archbishop of Bologna, Italy |
| 68.8 | Appointed | Francisco de Paula Benavides y Navarrete, O.S. † | Cardinal-Priest of San Pietro in Montorio | Cardinal, Archbishop of Zaragoza, Spain |
| 55.9 | Appointed | Sigismondo Brandolini Rota † | Coadjutor Bishop of Ceneda, Italy | Bishop |
| 55.9 | Appointed | Sigismondo Brandolini Rota † | Titular Bishop of Oropus | Bishop of Ceneda, Italy |
| 63.2 | Appointed | Luigi Carvelli † | Coadjutor Bishop of Potenza e Marsico Nuovo, Italy | Bishop of Mileto, Italy |
| 63.2 | Appointed | Luigi Carvelli † | Titular Bishop of Etalonia (Hetalonia) | Bishop of Mileto, Italy |
| 43.3 | Appointed | Jaime Catalá y Albosa † | Bishop of Cádiz y Ceuta, Spain | Bishop of Barcelona, Spain |
| 54.2 | Appointed | Manuel Cerón † | Bishop of Cartagena, Colombia |
| 46.2 | Confirmed | Henri-Charles-Dominique Denéchau † | Bishop of Tulle, France |
| 55.7 | Appointed | Pietro Facciotti † | Auxiliary Bishop of Palestrina, Italy | Bishop Emeritus of Ferentino, Italy |
| 55.7 | Appointed | Pietro Facciotti † | Titular Bishop of Abila Lysaniae | Bishop Emeritus of Ferentino, Italy |
| 54.7 | Appointed | Manuel Gómez-Salazar y Lucio-Villegas † | Bishop of Málaga, Spain | Archbishop of Burgos, Spain |
| 47.1 | Appointed | Alessandro Grossi † | Auxiliary Bishop of Tivoli, Italy | Titular Archbishop of Nicopolis ad Nestum |
| 62.1 | Appointed | Francesco Macarone † | Coadjutor Bishop of Boiano, Italy | Bishop |
| 68.6 | Appointed | Bonfiglio Mura, O.S.M. † | Archbishop of Oristano, Italy |
| 51.0 | Appointed | Salvatore Nappi † | Archbishop of Conza e Campagna, Italy | Archbishop Emeritus |
| 66.8 | Appointed | Lorenzo Nina † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Prefect of the Congregation of the Council |
| 45.1 | Confirmed | Antonio Ochoa y Arenas † | Bishop of Sigüenza, Spain |
| 44.5 | Appointed | Mariano Elvezio Pagliari † | Archbishop of Spoleto, Italy |
| 64.6 | Confirmed | János Pauer † | Bishop of Székesfehérvár (Albareale), Hungary |
| 50.7 | Confirmed | José Proceso Pozuelo y Herrero † | Bishop of Islas Canarias {Canary Islands}, Spain | Bishop of Córdoba, Spain |
| 60.8 | Appointed | Achilles Rinaldini † | Titular Bishop of Cyrene |
| 43.9 | Appointed | Vincenzo Maria Sarnelli † | Bishop of Castellammare di Stabia, Italy | Archbishop of Napoli {Naples}, Italy |
| 53.9 | Appointed | Pietro Saulini † | Bishop of Alatri, Italy |
| 42.5 | Appointed | Sylwester Sembratowicz (Sembratovyc) † | Auxiliary Bishop of Lviv (Ukrainian), Ukraine | Cardinal, Archbishop |
| 42.5 | Appointed | Sylwester Sembratowicz (Sembratovyc) † | Titular Bishop of Iuliopolis | Cardinal, Archbishop of Lviv (Ukrainian), Ukraine |
| 74.3 | Appointed | Domenico Cavallini Spadoni † | Titular Archbishop of Adana | Archbishop Emeritus of Spoleto, Italy |
| 46.9 | Confirmed | Franz Joseph von Stein † | Bishop of Würzburg, Germany | Archbishop of München und Freising {Munich}, Germany |
| 64.0 | Appointed | Pietro de Villanova Castellacci † | Titular Patriarch of Antiochia {Antioch} |
| 66.4 | Confirmed | José Raimundo Benito Vilamitjana y Vila † | Archbishop of Tarragona, Spain |
| 1 Mar | | Born | João de Oliveira Matos Ferreira † | Valverde | Auxiliary Bishop of Guarda, Portugal |
| 2 Mar | 47.9 | Ordained Bishop | Juan José Baldivia Morales † | Bishop of Santa Cruz de la Sierra, Bolivia | Bishop of La Paz, Bolivia |
| 63.2 | Ordained Bishop | Luigi Carvelli † | Titular Bishop of Etalonia (Hetalonia) | Bishop of Mileto, Italy |
| 43.9 | Ordained Bishop | Vincenzo Maria Sarnelli † | Bishop of Castellammare di Stabia, Italy | Archbishop of Napoli {Naples}, Italy |
| 8 Mar | 23.1 | Ordained Priest | René-Michel-Marie Fée, M.E.P. † | Priest of La Société des Missions Etrangères | Bishop of Malacca, Singapore |
| 22.6 | Ordained Priest | Tommaso Trussoni † | Priest | Archbishop Emeritus of Cosenza, Italy |
| 9 Mar | 56.0 | Ordained Bishop | Francesco Battaglini † | Bishop of Rimini, Italy | Cardinal, Archbishop of Bologna, Italy |
| 55.9 | Ordained Bishop | Sigismondo Brandolini Rota † | Titular Bishop of Oropus | Bishop of Ceneda, Italy |
| 55.7 | Ordained Bishop | Pietro Facciotti † | Titular Bishop of Abila Lysaniae | Bishop Emeritus of Ferentino, Italy |
| Born | Antonio Melomo † | Cassano all'Jonio | Archbishop of Conza-Sant’Angelo dei Lombardi-Bisaccia, Italy |
| 44.5 | Ordained Bishop | Mariano Elvezio Pagliari † | Archbishop of Spoleto, Italy |
| Born | Lajos Shvoy † | Budapest | Bishop of Székesfehérvár (Albareale), Hungary |
| 10 Mar | | Born | Josyf Botsian (Bocian) † | Busko | Auxiliary Bishop of Lviv (Ukrainian), Ukraine |
| 65.3 | Died | Carlos María Colina y Rubio † | Bishop of Tlaxcala, México |
| Born | Edward Francis Ryan † | Lynn | Bishop of Burlington, Vermont, USA |
| 11 Mar | 77.2 | Died | Pedro José Chávez Ponce † | Bishop of Puno, Peru |
| 13 Mar | | Born | Henry Joseph O’Leary † | Richibouctou | Archbishop of Edmonton, Alberta, Canada |
| 15 Mar | | Born | Rafael Lira Infante † | Santiago | Bishop of Valparaíso, Chile |
| 16 Mar | 60.8 | Ordained Bishop | Achilles Rinaldini † | Titular Bishop of Cyrene |
| 19 Mar | 58.4 | Died | Anastasio Laterza, O.C.D. † | Bishop of Boiano, Italy |
| 62.1 | Succeeded | Francesco Macarone † | Bishop of Boiano, Italy |
| 20 Mar | | Born | Basile Octave Tanghe, O.F.M. Cap. † | Bruges, Belgium | Vicar Apostolic of Ubanghi Belga {Belgian Ubanghi}, Congo (Dem. Rep.) |
| 21 Mar | 47.1 | Appointed | Pierre-Timothee Attar (Hattar) † | Archbishop (Personal Title) of Mardin (Chaldean), Iraq | Bishop Emeritus |
| 65.4 | Died | Giovanni Bapt. Cerruti † | Bishop of Savona e Noli, Italy |
| 23 Mar | 44.5 | Ordained Bishop | Salvador Casañas y Pagés † | Titular Bishop of Ceramus | Cardinal, Bishop of Barcelona, Spain |
| 48.2 | Ordained Bishop | Pierre-Noël-Joseph Foucard, M.E.P. † | Titular Bishop of Zela | Prefect of Kuamsi, China |
| 25 Mar | | Born | Louis-Joseph-Arthur Melanson † | Trois-Rivières | Archbishop of Moncton, New Brunswick, Canada |
| 48.8 | Ordained Bishop | Elzear Torreggiani, O.F.M. Cap. † | Bishop of Armidale, Australia |
| 26 Mar | 62.8 | Died | Paolo di Niquesa † | Bishop of Aquino, Sora, e Pontecorvo, Italy |
| 56.2 | Succeeded | Ignazio Camillo Guglielmo Maria Pietro Persico, O.F.M. Cap. † | Bishop of Aquino, Sora, e Pontecorvo, Italy | Cardinal, Prefect of the Congregation for Indulgences and Relics |
| 27 Mar | 67.1 | Died | Hilarion Silani, O.S.B. † | Vicar Apostolic of Colombo, Sri Lanka |
| Born | Gallus (Bernhard) Steiger, O.S.B. † | Büron, Switzerland | Abbot Emeritus of Peramiho, Tanzania |
| 28 Mar | 53.0 | Appointed | Fulgence Czarev, O.F.M. † | Archbishop of Skopje, Macedonia | Bishop of Hvar (-Brac e Vis), Croatia |
| 51.5 | Appointed | Audishu V (Georges Ebed-Iesu) Khayyath † | Archbishop (Personal Title) of Diarbekir (Amida) (Chaldean), Turkey | Patriarch of Babylon {Babilonia} (Chaldean), Iraq |
| Born | Jean Marie van Cauwenbergh † | Lierre | Auxiliary Bishop of Mechelen, Belgium |
| 29 Mar | 23.2 | Ordained Priest | Conrad Abels, C.I.C.M. † | Priest of Congregation of the Immaculate Heart of Mary | Vicar Apostolic of Jehol [Jinzhou], China |
| 24.4 | Ordained Priest | Luis José María Amigó y Ferrer, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop of Segorbe, Spain |
| 30 Mar | 44.0 | Installed | Vincenzo Maria Sarnelli † | Bishop of Castellammare di Stabia, Italy | Archbishop of Napoli {Naples}, Italy |
| 31 Mar | | Born | Félix Hedde, O.P. † | Brest, France | Vicar Apostolic of Lang Són et Cao Bang, Viet Nam |
| 72.0 | Died | Benedetto Riccabona de Reinchenfels † | Bishop of Trento, Italy |