Löwenstein Castle was built at the end of the 11th century by the Counts of Calw as a mighty castle complex covering 3,500 square metres. Three dynasties of the Counts of Löwenstein lived in the castle during the Middle Ages. The heraldic animal of the family of Calw, the lion, later gave its name to the settlement of Löwenstein. The settlement was officially granted town rights in 1287 during a visit by the king to Löwenstein Castle. Löwenstein Castle has belonged to the Electoral Palatinate since 1441. Today, the imposing building is a magnet for visitors who can climb the castle tower, take part in a free guided tour or one of the many hands-on activities.