 The church's main claim to fame, in Polish eyes, is that Fryderyk Chopin used to play the church organ here, mainly during services for schoolchildren.In front of this late-baroque church stands a statue of Cardinal Stefan Wyszyński, primate of Poland from 1948 to 1981.The nave with main altar and 6 side chapels in Baroque style are embellished with rich Rococo decorations.