sentences:  Modern Kalisz was most likely founded in the 9th century as a provincial capital castellany and a minor fort.In 1106 Bolesław III Wrymouth captured the town and made it a part of his feudal domain.Between 1253 and 1260 the town was incorporated according to the German town law called the Środa Śląska Law (after Środa Śląska in Silesia), a local variation of the Magdeburg Law, and soon started to grow.