This defensive tower (beginning of the 14th century) was one of the ancient prisons of Riquewihr, the seat of feudal justice in the era when the town belonged to the Dukes of Wurtemberg. The ‘Thieves’ Tower” interconnects with the ‘Winemaker’s House”, which dates from the 16th century
http://www.ribeauville-riquewihr.com/en/visit/museums.htm