The knights' castle
The royal seat comprises a three-winged palace complex enclosed by a wall on the fourth side. The only remains of the knights' castle are in this wall, the south wing and the main walls and the two other wings. They consisted of a building measuring 11 x 22 meters and a courtyard. Their precise age is not known. However, the walls that remain are certainly not from the time of the legendary 10th century Swabian Duke Burkhard.