[5] The Greek Catholic Church in Croatia has existed since the 16th century and was created by Christians of the Greek-Slavic rite who fled before the Turks from Bosnia and Slavonia and moved to the area of the Military Frontier (Vojna krajina) and the western parts of Croatia.

[6] In May 1836, the first Ruthenian Greek Catholic parish in the territory of today's Croatia was founded in Petrovci.

[7] Until 2001, the Greek 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 and Herzegovina, Serbia, Montenegro and North Macedonia.

After the formation of independent successor states from what had been Yugoslavia, the process of administrative reorganization was initiated.

[10] The Apostolic Exarchate of Serbia was elevated to the Greek Catholic Eparchy of Ruski Krstur in December 2018.