The New Castle was built at the beginning of the 18th century as the new seat of the Prince-Bishops of Constance, after they had temporarily resided in Meersburg Castle. At some point, however, the medieval building could no longer meet the demands of the bishops. The new building was constructed according to the designs of the famous master builder Balthasar Neumann and, with its magnificent interior, the castle chapel and the imposing staircase, was clearly more representative than the old castle. Later, a riding stable and a seminary were added to the baroque complex. Even today, the design of a typical residential town can be seen, the center of which was the New Castle.