Church was built in 1763. and it is a beautiful example of baroque architecture. It became cathedral in 1997. when Požega diocese was founded. Cathedral is known for its beautiful wall and window paintings and rich baroque and rococo styled altars.
On the occasion of Saint Theresa of Avils Days, the patroness of the Town of Požega, the Požega organ evenings are held in the cathedral.

http://en.wikipedia.org/wiki/Po%C5%BEega_Cathedral