The Church was built in the Gothic style in the second half of the fourteenth century with the foundation of the King Kazimierz Wielki and then rebuilt in the sixteenth and seventeenth centuries. In the interiors for the special attention deserve: a gothic Passions Group from the beginning of the fifteenth century, the array picture Coronation of the Virgin Marry from about 1475, six altar settings from the seventeenth century, tin font from the seventeenth century, richly decorated pulpit of the seventeenth century, and a unique group of more than 20 oil paintings on canvas (including the work “Adoration of the Holy Trinity and the Virgin Mary by all the saints” by the Venetian master of art Tommaso Dolabella). Moreover there is also the chapel of St. Peter and Paul done by Italian artists - the ancestral mausoleum of Portius family, which shall also be noticed. The interior there is a wealth of stucco decoration visible. In the centre of the chapel there is the altar, richly decorated with carving decoration. On the wall there are portraits of the founder of the chapel, his wife Anna and his brother Tomasz.