Archaeological findings on the Römerberg, and most recently in the area of the Old Nikolaikirche, showed slight remains of a wall to be considered Carolingian, which would presumably surround the settlement on the Samstagsberg and, in a continued process, would also satisfactorily explain the striking rounding of the plots on the former "Goldhutgasse". If one follows this assumption, the wall in the south was roughly limited by the course of the later Bendergasse, the northern and western extent can only be guessed at. Overall, however, there is a typical, ring-like fortification, the former row of buildings in the eastern part until the destruction of the Second World War was reflected by the parcels within their former borders.