| Year | From | To | ||
|---|---|---|---|---|
| 1244 | Diocese of Antibes, France | Name Changed | Diocese of Grasse, France | Name Changed |
| 1525 | Diocese of Satriano, Italy | Name Changed | Diocese of Satriano e Campagna, Italy | Name Changed |
| 1575 | Diocese of São Salvador da Bahia de Todos os Santos, Brazil | Territory Lost | Territorial Prelature of São Sebastião do Rio de Janeiro, Brazil | Erected |
| 1593 | Diocese of Urgell, Spain
Diocese of Vic, Spain | Territory Lost | Diocese of Solsona, Spain | Erected |
| 1850 | Diocese of Cincinnati, Ohio, USA | Elevated | Archdiocese of Cincinnati, Ohio, USA | Elevated |
| 1850 | Diocese of New Orleans, Louisiana, USA | Territory Lost | Vicariate Apostolic of Indian Territory East of the Rocky Mountains, USA (Area East of the Rocky Mountains except for AR, MO, and MN) | Erected |
| 1850 | Diocese of New Orleans, Louisiana, USA | Elevated | Archdiocese of New Orleans, Louisiana, USA | Elevated |
| 1850 | Diocese of New York, New York, USA | Elevated | Archdiocese of New York, New York, USA | Elevated |
| 1850 | Diocese of Dubuque, Iowa, USA
Diocese of Milwaukee, Wisconsin, USA | Territory Lost | Diocese of Saint Paul, Minnesota, USA (State of Minnesota) | Erected |
| 1850 | Diocese of Richmond, Virginia, USA | Territory Lost | Diocese of Wheeling, West Virginia, USA (Virginia west of the Allegheny Mountains and West of Maryland) | Erected |
| 1850 | Diocese of Charleston, South Carolina, USA
Diocese of Mobile, Alabama, USA | Territory Lost | Diocese of Savannah, Georgia, USA (State of Georgia and Florida to the Appalachicola River) | Erected |
| 1850 | Diocese of Durango, México | Territory Lost | Vicariate Apostolic of New Mexico, USA | Erected |
| 1850 | Diocese of Galveston, Texas, USA (from Baltimore to New Orleans)
Diocese of Little Rock, Arkansas, USA (from Baltimore to New Orleans) Diocese of Mobile, Alabama, USA (from Baltimore to New Orleans) Diocese of Natchez, Mississippi, USA (from Baltimore to New Orleans) | Metropolitan Changed | ||
| 1850 | Diocese of Cleveland, Ohio, USA (from Baltimore to Cincinnati)
Diocese of Detroit, Michigan, USA (from Baltimore to Cincinnati) Diocese of Louisville, Kentucky, USA (from Baltimore to Cincinnati) Diocese of Vincennes, Indiana, USA (from Baltimore to Cincinnati) | Metropolitan Changed | ||
| 1850 | Diocese of Albany, New York, USA (from Baltimore to New York)
Diocese of Boston, Massachusetts, USA (from Baltimore to New York) Diocese of Buffalo, New York, USA (from Baltimore to New York) Diocese of Hartford, Connecticut, USA (from Baltimore to New York) | Metropolitan Changed | ||
| 1850 | Diocese of Chicago, Illinois, USA (from Baltimore to Saint Louis)
Diocese of Dubuque, Iowa, USA (from Baltimore to Saint Louis) Diocese of Milwaukee, Wisconsin, USA (from Baltimore to Saint Louis) Diocese of Nashville, Tennessee, USA (from Baltimore to Saint Louis) | Metropolitan Changed | ||
| 1853 | Diocese of Autun, France | Name Changed | Diocese of Autun (-Châlon-sur-Saône-Mâcon), France | Name Changed |
| 1870 | Vicariate Apostolic of Central Burma {Centrale}, Myanmar | Name Changed | Vicariate Apostolic of Northern Burma {Birmania Settentrionale}, Myanmar | Name Changed |
| 1870 | Vicariate Apostolic of Southwestern Burma {Birmania Meridio-Occid.}, Myanmar | Name Changed | Vicariate Apostolic of Southern Burma {Birmania Meridionale}, Myanmar | Name Changed |
| 1870 | Vicariate Apostolic of Western Bengal, India | Territory Lost | Prefecture Apostolic of Central Bengal, India | Erected |
| 1901 | Vicariate Apostolic of Sahara and Sudan | Territory Lost | Prefecture Apostolic of Ghardaïa, Algeria | Erected |
| 1901 | Vicariate Apostolic of Sahara and Sudan | Name Changed | Vicariate Apostolic of Sahara of French Sudan {Sahara nel Sudan Francese}, Mali | Name Changed |
| 1910 | Armen-Brüder des Heiligen Franziskus Seraphikus | Approbation | ||
| 1910 | Armen-Brüder des Heiligen Franziskus Seraphikus | Decretum Laudis | ||
| 1913 | Vicariate Apostolic of Fo-Kien, China (Lun-yen-chou, Yung-chun-chou, and Hsing-hua-fu along with Nan-jih island) | Territory Lost | Vicariate Apostolic of Amoy, China | Territory Added |
| 1928 | Vicariate Apostolic of Wonsan, Korea (North) (Civil province of Yenki) | Territory Lost | Prefecture Apostolic of Yenki [Yanji], China | Erected |
| 1939 | Diocese of Oradea Mare {Gran Varadino, Nagyvárad} and Satu Mare {Szatmár}, Romania (Territory in Hungary) | Territory Lost | Apostolic Administration of Satu Mare {Szatmár} in Slovakia, Slovakia | Erected |
| 1951 | Diocese of Guadeloupe et Basse-Terre, Antilles | Name Changed | Diocese of Basse-Terre (et Pointe-à-Pitre), Guadeloupe, Antilles | Name Changed |
| 1951 | Prefecture Apostolic of Kankan, Guinea (Macenta) | Territory Lost | Prefecture Apostolic of N’Zérékoré, Guinea | Territory Added |
| 1951 | Prefecture Apostolic of N’Zérékoré, Guinea (Siguirini and Kankan) | Territory Lost | Prefecture Apostolic of Kankan, Guinea | Territory Added |
| 1969 | Archdiocese of Luluabourg, Congo (Dem. Rep.)
Diocese of Luiza, Congo (Dem. Rep.) | Territory Added | ||
| 1981 | Missionari dei Poveri | Founded | ||
| 1984 | Vicariate Apostolic of Arauca, Colombia | Elevated | Diocese of Arauca, Colombia | Elevated |
| 1999 | Nunciature to Saint Kitts and Nevis, Antilles | Established | ||
| 2001 | Diocese of Bacabal, Maranhão, Brazil (Parts of Bacabal and São Luiz Gonzaga do Maranhão now in Alto Alegre do Maranhão) | Territory Lost | Diocese of Coroatá, Maranhão, Brazil | Territory Added |
| 2002 | Archdiocese of Madras and Mylapore (Meliapor), India (Kancheepuram except Saint Thomas) | Territory Lost | Diocese of Chingleput, India | Erected |
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