Changes in Ecclesiastical Jurisdictions in Croatia

Date	Change
Unknown	Diocese of Arba was established
300	Diocese of Poreč was established
300	Diocese of Ragusa was established
300	Diocese of Salona was established
300	Diocese of Sisak was established
300	Diocese of Vinkovci was established
380	Diocese of Zadar was established
400	Diocese of Senj was established
500	Diocese of Salona was promoted as Metropolitan Archdiocese of Salona (with suffragan sees Ragusa and Zadar)
500	Diocese of Vinkovci was suppressed
520	Diocese of Cittanova was established (from the suppressed Diocese of Emona and became suffragan of Aquileia)
530	Diocese of Narona was established
533	Diocese of Makarska was established (from Diocese of Narona)
557	Diocese of Pedena was established (from Diocese of Trieste)
590	Diocese of Makarska was suppressed (to Metropolitan Archdiocese of Salona and to establish Diocese of Duvno)
600	Diocese of Narona was suppressed (to Diocese of Ragusa)
600	Diocese of Osor was established
600	Diocese of Pula was established (became suffragan of Ravenna)
650	Metropolitan Archdiocese of Salona was renamed as Metropolitan Archdiocese of Split
700	Diocese of Sisak was suppressed
800	Diocese of Ston was established (from Diocese of Ragusa)
811	Diocese of Cittanova lost territory to Patriarchal See of Aquileia
850	Diocese of Nona was established
900	Diocese of Krk was established (became suffragan of Split)
929	Diocese of Nona was suppressed (to Diocese of Zadar)
1050	Diocese of Knin was established (became suffragan of Split)
1050	Diocese of Nona was restored (from Diocese of Zadar)
1050	Diocese of Traù was established (became suffragan of Split)
1059	Diocese of Alba maritima was established
1093	Diocese of Zagreb was established (from former Diocese of Sisak and became suffragan of Esztergom)
1120	Diocese of Ragusa was promoted as Metropolitan Archdiocese of Ragusa (with suffragan see Bosnia)
1126	Diocese of Alba maritima was suppressed (to establish Diocese of Skradin)
1126	Diocese of Skradin was established (from the suppressed Diocese of Alba maritima)
1144	Diocese of Hvar was established (from Metropolitan Archdiocese of Split)
1154.10.17	Diocese of Zadar was promoted as Metropolitan Archdiocese of Zadar (with suffragan sees Hvar and Krk)
1185	Diocese of Corbavia was established
1250	Diocese of Bosnia was established (from Diocese of Pécs, from the suppressed Diocese of Bosnia and became suffragan of Ragusa)
1298.05.01	Diocese of Šibenik was established (from Diocese of Traù and became suffragan of Split)
1300	Diocese of Korcula was established (from Diocese of Hvar and from the suppressed Diocese of Ston)
1300	Diocese of Ston was suppressed (to establish Diocese of Korcula)
1344	Diocese of Makarska was restored (from Metropolitan Archdiocese of Split)
1400	Diocese of Makarska was suppressed (to Metropolitan Archdiocese of Split)
1460	Diocese of Corbavia was suppressed (to establish Diocese of Modruš)
1460	Diocese of Modruš was established (from the suppressed Diocese of Corbavia)
1460	Diocese of Otočac was established (from Diocese of Senj)
1534	Diocese of Otočac was suppressed (to Diocese of Senj)
1541	Diocese of Ston was restored (from Diocese of Korcula)
1611.11.21	Apostolic Vicariate of Marča (Croatian Rite) was established (from Diocese of Zagreb)
1615	Diocese of Makarska was restored (from Metropolitan Archdiocese of Split)
1630	Diocese of Modruš was suppressed (to Diocese of Senj–Modruš)
1630	Diocese of Senj was renamed as Diocese of Senj–Modruš (gained territory from the suppressed Diocese of Modruš)
1773.07.09	Diocese of Bosnia was renamed as Diocese of Bosnia i Srijem (gained territory from the suppressed Diocese of Srijem)
1777.06.17	Apostolic Vicariate of Marča (Croatian Rite) was promoted as Diocese of Gornji Tkalec (became suffragan of Esztergom)
1784	Diocese of Poreč exchanged territory with Diocese of Trieste
1787.10.16	Diocese of Pula lost territory to Diocese of Senj–Modruš
1788.03.08	Diocese of Pedena was suppressed (to establish Diocese of Gradisca)
1794	Diocese of Pula lost territory to Diocese of Trieste
1801	Diocese of Gornji Tkalec (Croatian Rite) was renamed as Diocese of Križevci
1828.06.30	Diocese of Arba was suppressed (to Diocese of Krk)
1828.06.30	Metropolitan Archdiocese of Ragusa was demoted as Diocese of Dubrovnik (gained territory from the suppressed Diocese of Korcula and Diocese of Ston and became suffragan of Zadar)
1828.06.30	Diocese of Knin was suppressed (to Diocese of Šibenik)
1828.06.30	Diocese of Korcula was suppressed (to Diocese of Dubrovnik)
1828.06.30	Diocese of Nona was suppressed (to Metropolitan Archdiocese of Zadar)
1828.06.30	Diocese of Osor was suppressed (to Diocese of Krk)
1828.06.30	Diocese of Poreč was renamed as Diocese of Poreč i Pula (gained territory from the suppressed Diocese of Pula)
1828.06.30	Diocese of Pula was suppressed (to Diocese of Poreč i Pula)
1828.06.30	Diocese of Skradin was suppressed (to Diocese of Šibenik)
1828.06.30	Metropolitan Archdiocese of Split was demoted as Diocese of Split (gained territory from the suppressed Diocese of Traù, lost territory to Diocese of Šibenik and became suffragan of Zadar)
1828.06.30	Diocese of Ston was suppressed (to Diocese of Dubrovnik)
1828.06.30	Diocese of Traù was suppressed (to Diocese of Šibenik and Diocese of Split)
1831.05.23	Diocese of Cittanova was suppressed (to Diocese of Trieste)
1852.12.11	Diocese of Zagreb was promoted as Metropolitan Archdiocese of Zagreb (with suffragan see Križevci)
1889.01.14	Diocese of Hvar was renamed as Diocese of Hvar–Brač–Vis
1920.04.30	Apostolic Administration of Rijeka was established (from Diocese of Senj–Modruš)
1920.11.12	Diocese of Krk lost territory to Apostolic Administration of Rijeka
1925	Titular Episcopal See of Knin was renamed as Titular Episcopal See of Tinum
1925.04.25	Apostolic Administration of Rijeka was promoted as Diocese of Rijeka–Opatija (gained territory from Diocese of Ljubljana, Diocese of Senj–Modruš and Diocese of Trieste and without ecclesiastical province)
1925.04.25	Diocese of Senj–Modruš lost territory to Diocese of Rijeka–Opatija
1932.08.01	Diocese of Rijeka–Opatija lost territory to Archdiocese of Zadar
1932.08.01	Metropolitan Archdiocese of Zadar was demoted as Archdiocese of Zadar (gained territory from Diocese of Rijeka–Opatija, lost territory to Diocese of Šibenik and without ecclesiastical province)
1933	Titular Episcopal See of Arba was restored
1933	Titular Episcopal See of Tinum was renamed as Titular Episcopal See of Knin
1933	Titular Episcopal See of Korčula was restored
1933	Titular Episcopal See of Narona was restored
1933	Titular Episcopal See of Nin was restored
1933	Titular Episcopal See of Osor was restored
1933	Titular Episcopal See of Otočac was restored
1933	Titular Episcopal See of Skradin was restored
1933	Titular Episcopal See of Ston was restored
1933	Titular Episcopal See of Trogir was restored
1948.03.01	Diocese of Šibenik lost territory to Archdiocese of Zadar
1948.04.09	Titular Episcopal See of Alba marittima was restored (from the suppressed former Titular Episcopal See of Belogradum)
1963.01.06	Diocese of Rijeka–Opatija lost territory to Diocese of Krk
1963.01.06	Archdiocese of Zadar lost territory to Diocese of Krk
1963.11.18	Diocese of Bosnia i Srijem was renamed as Diocese of Đakovo i Srijem
1969	Titular Episcopal See of Novigrad was restored
1969	Titular Episcopal See of Pićan was restored
1969.07.27	Diocese of Makarska was suppressed (to Metropolitan Archdiocese of Split–Makarska)
1969.07.27	Diocese of Rijeka–Opatija was promoted as Metropolitan Archdiocese of Rijeka–Senj (with suffragan sees Krk and Poreč i Pula and gained territory from the suppressed Diocese of Senj–Modruš)
1969.07.27	Diocese of Senj–Modruš was suppressed (to Metropolitan Archdiocese of Rijeka–Senj)
1969.07.27	Diocese of Split was promoted as Metropolitan Archdiocese of Split–Makarska (with suffragan sees Dubrovnik, Hvar–Brač–Vis, Kotor and Šibenik and gained territory from the suppressed Diocese of Makarska)
1970	Titular Episcopal See of Cissa was established
1977.10.17	Diocese of Poreč i Pula exchanged territory with Diocese of Koper
1977.10.17	Metropolitan Archdiocese of Rijeka–Senj lost territory to Diocese of Koper
1997.04.25	Military Ordinariate of Vojni ordinarijat u Republici Hrvatskoj was established
1997.07.05	Diocese of Požega was established (from Metropolitan Archdiocese of Zagreb and became suffragan of Zagreb)
1997.07.05	Diocese of Varaždin was established (from Metropolitan Archdiocese of Zagreb and became suffragan of Zagreb)
1999	Titular Episcopal See of Sisak was restored
2000	Titular Episcopal See of Krbava was restored
2000	Titular Episcopal See of Modruš was restored
2000.05.25	Diocese of Gospić–Senj was established (from Metropolitan Archdiocese of Rijeka–Senj and became suffragan of Rijeka)
2000.05.25	Metropolitan Archdiocese of Rijeka–Senj was renamed as Metropolitan Archdiocese of Rijeka (lost territory to establish Diocese of Gospić–Senj and gained suffragan see Gospić–Senj)
2008.06.18	Diocese of Đakovo i Srijem was promoted as Metropolitan Archdiocese of Đakovo–Osijek (with suffragan sees Požega and Srijem and lost territory to establish Diocese of Srijem)
2009.11	Titular Episcopal See of Vinkovci was restored
2009.12.05	Diocese of Bjelovar–Križevci was established (from Metropolitan Archdiocese of Zagreb and became suffragan of Zagreb)
2009.12.05	Diocese of Sisak was restored (from Metropolitan Archdiocese of Zagreb and became suffragan of Zagreb)