Austro-Hungarian rule in Bosnia and Herzegovina power over the Catholic Church in Bosnia and Herzegovina, the Emperor established the cathedral in Sarajevo and named Archbishop Dr. Josip Štadler as its head. Just before the occupation of Bosnia and Herzegovina, the Croatian Sabor asked the Emperor to alter the situation in Bosnia and Herzegovina so it could be unified with the Kingdom of Croatia-Slavonia and the Kingdom of Dalmatia. The Emperor refused to accept this demand and dismissed the Sabor. This was done as the Austrian-Hungarian authorities had a plan to isolate Bosnia and Herzegovina from its neighbouring Slavic countries, Croatia and Serbia, and to halt the
Greek Catholic Church of Croatia and Serbia Catholic Eparchy of Križevci had full jurisdiction over all Eastern Catholics of the Byzantine Rite throughout the entire territory of former Yugoslavia, including all of its successor states: Croatia, Slovenia, Bosnia-Herzegovina, Serbia, Montenegro and Macedonia. During that time, it mostly gathered its faithful among the Croats in central and eastern Croatia, among the Rusyns or Ukrainians in eastern Croatia, northern Bosnia and northern Serbia and among Macedonians in Macedonia. After the formation of independent successor states from what had been Yugoslavia, the process of administrative reorganization was initiated. In 2001, a separate Byzantine Catholic Apostolic Exarchate of Macedonia was formed