Since the time of Casimir the Great Kalisz was surrounded by defensive walls. To this day, they have survived only a few fragments, representing about 1/5 of the entire circumference of the fortifications. There is also a tower, called Dorotka, which is associated with one of the most famous Kalisz legends.
The brick walls of the city commanded the construction of Kazimierz the Great around Kalisz. They replaced the earthen fortifications. There was also a royal castle, which burnt down in the 16th century. The walls contained 4 gates and 18 towers. The state of fortification deteriorated since the 18th century. As a result, they were demolished. Up to now, we have survived 6 sections, from 7 to 151 meters in length and one tower, called Dorotka.
The most famous fragments of the city walls of Kalisz are located behind the Basilica of Sts. Joseph and Parczewski Street. In recent years they have been completely restored. The "Dorotka", in which the Brotherhood of Kurków is located, was also revived. This tower is associated with the legend of the squire of the starost and his daughter. She fell in love with poor shoemaker Marcin. The father punished her in a bunker where the girl died. The tower was for centuries the place where the Kalisz women of light customs, which were commonly called "Dorotkami", were imprisoned.