 During the period of Bernese rule, beginning approximately in the early 17th century, the gaol was located on the first floor; it can still be visited today.To create more storage space for grain, in 1728–29 the tower and the neighbouring Knights' Hall, and the well between them, were joined together with an unornamented utility building.This required the removal of the north façade, because the tower was not aligned with the Knights' Hall.