Piotrkowski parish Church is a building buttresses, with a narrower and lower chancel closed multilateralny.From the west to the facade of the temple is adjacent the massive seven-storey tower topped with a Baroque cupola, with loopholes, lancet and semicircular windows and porch on the ground floor. A valuable Gothic accent is a stepped gable with pinnacles on the border of the nave and chancel. The equipment worth noticing is the Gothic image of the "Dormition of the Virgin Mary” in 1510, painted in tempera on panel by Marcin Czarny, student of Wit Stwosz. According to tradition, a picture was donated to the Church by the Queen Bona. Piotrkowski parish Church had a special significance, because here in the fifteenth - sixteenth century began with a solemn prayers all the crown parliments sessions convened in Piotrkow, and than (till 1792) launch events of the next sessions of the Crown Court.