Street chains served a defensive function in Krakow. They were heavy and iron and stretched across the streets leading to the main square. In some streets, they were doubled. The beginning of their existence dates back to the 14th century. Even today, we can see similar chains on Floriańska street, Gołębia street and on the corner of St. Anna and Jagiellońska streets, unfortunately not original. Most of them were stolen by the Swedes during the famous “deluge” in the 17th century.