For some reason, Google text ads gave me a link to this German castle for rent. Probably because I called somebody a Scheisskopf by Gmail.
Anyway, the place is about 200km from Berlin, near the town of Halle. For 90 Euros per person, you get "rental accomodation on 1 complete level of this historical castle," three individual double bedrooms for rent, with showers (authentic? I think not…) plus one twin room, a sitting room, a 12-seat dining room, music room with grand piano, cinema room, conference room, meditation room, and yoga room.
It is located in a "secluded tranquil hamlet" with stunning scenery. Vegetarian breakfast is included in the price. Yoga? Meditation? Vegetarian breakfast? Ich denke nein.