Date | Country | Change |
| 1912.06.08 |  Hungary | Diocese of Hajdúdorog (Hungarian Rite) was established (from Metropolitanate sui juris of Făgăraş şi Alba Iulia, Metropolitan Archdiocese of Esztergom, Diocese of Gherla, Armenopoli, Szamos-Ujvár, Diocese of Mukacheve, Diocese of Oradea Mare and Diocese of Prešov and became suffragan of Esztergom) |
| 1924.06.04 | Hungary | Apostolic Exarchate of Miskolc (Hungarian Rite) was established |
| 1934.04.09 | Hungary | Diocese of Hajdúdorog (Hungarian Rite) lost territory to Metropolitanate sui juris of Făgăraş şi Alba Iulia, Diocese of Maramureş and Diocese of Oradea Mare |
| 2011.03.05 | Hungary | Diocese of Hajdúdorog (Hungarian Rite) lost territory to Apostolic Exarchate of Miskolc |
| 2015.03.20 | Hungary | Diocese of Hajdúdorog (Hungarian Rite) was promoted as Metropolitanate sui juris of Hajdúdorog (with suffragan sees Miskolc and Nyíregyháza and lost territory to establish Diocese of Nyíregyháza) |
| 2015.03.20 | Hungary | Apostolic Exarchate of Miskolc (Hungarian Rite) was promoted as Diocese of Miskolc (became suffragan of Hajdúdorog) |
| 2015.03.20 | Hungary | Diocese of Nyíregyháza (Hungarian Rite) was established (from Diocese of Hajdúdorog and became suffragan of Hajdúdorog) |
