The Warta, the third longest river in Polish, has its origin in Kromołów, a present-day district of Zawiercie. There is a chapel of Saint John of Nepomuk at the source. It has a history dating back to the sixteenth century, but the current patron saint is associated with the events of the eighteenth century. The cult of the fourteenth-century saint, who came from Bohemia, quickly spread to the neighboring countries. As saying goes: where Saint John of Nepomuk is worshipped, there is Central Europe.