Sadly this one doesn't seem to have any -it was just a member of countryside nobility trying to show off. But this is just the official version, and sure enough, if I was the queen and had my own castle it would be full of whimsical secret rooms, prank booby traps and also some deadly one.
It was partially destroyed during WWII but now you can visit it and its beautiful gardens :)
Imagine a large bed in the cool, dark room
Silence
Perfect
Just need to get trapped after closing time.