St. Stanislaus Church has been existing in the 13 th c. Bolesław the Pious and his wife Jolanta were the founders. The three – aisled temple has a rectangle shape presbytery separated from the trunk, with a crossirbbed vault. There is a gothic sacristy near the northern wall of the presbytery, where in ca. 1632 a chapel was added. The aisle and presbytery vault has got a late Renaissance artificial marble decoration in the so-called Kalisz-Lublin`s style. The basilica was reconstructed into a hall church. Late – Renaissance stuccos in the aisles and a late – baroque main altar as well as a pulpit in the shape of Peter`s boat from 1862 are worth mentioning. It`s here where Jakub Świnka was consecrated the archbishop of Gniezno. The construction of the monastery took place in 1640-1680. From the end of the 18 th c. to the second half of the 19 th c. there was a prison, barracks and police station. From 1864 to 1902 the monastery had a function of a permanent monastery. The friars came back to the monastery in 1918.