The cathedral's foundation stone was put on 6th of August 1736. It was designed by Joseph Emanuel Fischer von Erlach from Vienna, then Hans Lechner continued the building from 1750. It was finished by two architects from Timişoara, Johann Theodor Kostka and Carl Alexander Steinlein in 1774. The Dome was built in Austrian baroque style and it was dedicated to Saint George, the dioceses patron saint. The picture located at the high altar was painted by Michel Angelo Unterberger, the director of fine arts academy of Vienna, illustrating the patron saint. The side altars were painted by Johann Nepomuk Schöpf in 1772. The precious oil-lamps were made by Josef Moser. The organ was made by Leopold Wegenstein, and it provides an impressive experience for the ears. The cathedrals bells were renewed in Germany in 1998.