Jakub Koniecpolski and his mother Dorota of Sienno founded the monastery in 1465-66. Despite its later extension in Baroque style (the c17th ) the monastery has preserved till today its original Gothic bulk. Valuable works of Gothic art: a baptismal font ornamented with coats of arms, a fully expressive wooden and polychrome Pieta dating back to the beginning of the c15th and late-medieval bronze tombstone of the Koniecpolskis from 1475 – one of Poland’s most valuable monuments of this type- can be seen inside the church.