 For King Ferdinand I, this meant that the university should be tied to the church to an even stronger degree, and in 1551 he installed the Jesuit Order there.With the enacting of the "Sanctio Pragmatica" edict by emperor Ferdinand II in 1623, the Jesuits took over teaching at the theological and philosophical faculty, and thus the university became a stronghold of Catholicism for over 150 years.It was only in the Mid-18th century that Empress Maria Theresa forced the university back under control of the monarchy.