This mid-18th-century Baroque church is associated with Bishop Stanisław (Stanislaus) Szczepanowski, patron saint of Poland. In 1079, the bishop was beheaded by King Bolesław Śmiały (Boleslaus the Bold): the tree trunk where the deed was done is next to the altar. The crypt shelters tombs of 12 eminent cultural figures, including the Nobel-winning writer and poet Czesław Miłosz.
