Corridor level minus one (formerly service rooms)
The basement floor has a general spatial layout similar to the layout of the higher floors. It is developed within one tract, preceded from the courtyard side by a wide cross-vaulted corridor.
The function of the individual basement rooms was determined by the inventory from the year eighteen hundred and fifty-three. Rooms on this level were primarily of an economic nature, some also served as housing for people employed at the court and the service. They constituted a kind of service for the princely family. The twenty-six rooms on this floor included, among others, the master's apartment, the frotter's room, the valet's chamberlain, the lighting servant, the court kitchen and auxiliary kitchen, and the laundry. The basement interiors are mostly square, with cross vaults, supported by a central pillar.
The function of the individual basement rooms was determined by the inventory from the year eighteen hundred and fifty-three. Rooms on this level were primarily of an economic nature, some also served as housing for people employed at the court and the service. They constituted a kind of service for the princely family. The twenty-six rooms on this floor included, among others, the master's apartment, the frotter's room, the valet's chamberlain, the lighting servant, the court kitchen and auxiliary kitchen, and the laundry. The basement interiors are mostly square, with cross vaults, supported by a central pillar.