In 1434 Wiesensteig was first called a noble residence of the local lords of Wiesensteig, which probably served them until the 15th century as a seat. In 1516, the castle was the new seat of the Lords of Helfenstein, who had lost their original headquarters in Geislingen on the rise in 1396 at Ulm and moved their main residence on the Hiltenburg in the Upper Filstal. After the destruction of the Hiltenburg by Duke Ulrich of Württemberg in 1516 their castle in Wiesensteig new residence of Helfensteiner. In the middle of the 16th century, Count Ulrich XVII. Helfenstein planned the construction of a new four-winged castle, which was built from 1551 to 1555. After a partial collapse of the building, the former builder Peter Biller from Kirchheim unter Teck was dismissed and the building completed by an unknown master builder. Towards the end of the 16th century, exterior modifications were made to the palace, which are still in existence today. For example, in 1596 a pleasure garden was created near the castle. After the extinction of the Counts of Helfenstein in 1627, the village Wiesensteig was divided, so that one third fell to the princes of Fürstenberg and two thirds to the Electorate of Bavaria. In 1752, Kurbayern was able to acquire the third of the Fürstenberg and set up the apartment and the office of the Vogt in the castle. As a result of the Reichsdeputationshauptschlusses 1806 the rule Wiesensteig fell to Württemberg. The castle served until 1810 as the seat of the Oberamt Wiesensteig before it became part of the upper office Geislingen. In 1812, three wings of the unused castle were demolished, only the so-called Fürstenbergische wing remained. This was after various uses in the 19th century, u. a. acquired as a fruit box, residential building, doctor's office or post office, from the city of Wiesensteig and used as a civic center after a thorough renovation between 1983 and 1986 until today.
Source: Wikipedia