It is the major education institution of the Greek Catholic church in Croatia, Bosnia and Herzegovina and Slovenia.

[2] To improve education among the Uskoks in Croatia and Slavonia, bishop Pavao Zorčić established 1680 this seminary in the center of Zagreb.

[3] The small house was ready for operation one year later and was housing the rector with assistants and among a dozen students visiting the College or the University of the Jesuits in Zagreb.

After a destruction by fire bishop Vasilije Božičković rebuilt the seminary and it became the first two floor building in Zagreb.

Later, after the huge destrucions of the 1880 Zagreb earthquake a new splendid seminary and parish church dedicated to Cyril and Methodius was erected by bishop Ilija Hranilović and executed by the renowned architect Hermann Bollé.