The heart of the Polish king Władysław IV Vasa was buried there upon his death, although the rest of his body is buried at the Wawel Cathedral in Kraków.
Hjertet i den polsk-litauiske konge Władysław IV Vasa blev begravet der på hans død, selvom resten af hans krop er begravet på Wawel-katedralen i Kraków.