The parish church of the Nativity of St. John the Baptist was founded by Casimir the Great in the first half of the 14th century. The structure has been overhauled several times and its present appearance is a mixture of different architectural styles and historical eras. The church is oriented, i.e., the main altar is located on its eastern side. In the 16th century, the church was overhauled and expanded by magnate families. The portals of the Renaissance doors remain from this era, as well as the oldest surviving bell called ‘Maria, Queen of Angels’, from 1550. Most of the church’s furnishings date from the 17th century, including the gilded main altar. The main part of the altarpiece features a medieval painting of the patron of the church and parish, St. John the Baptist, baptising Jesus in the Jordan River. The alternative image is the ‘Sacred Heart of Jesus’ with the figure of Christ on a globe with a radiating heart. The upper part shows St. Elizabeth with her son, John the Baptist. Standing next to the paintings are statues of the apostles Peter and Paul and the patron saints of Poland, St. Wojciech (Adalbert) and St. Stanisław the bishop w Piotrowin.