The site had been the official residence of the dynasty, in the state of Lower Saxony, but Augustus did not want to continue spending more money on the costly preservation of the historic property: “It has been a decision of great importance to my family. “We have found a good solution,” he said at the time.
This opportunity, Ernst considered, would allow the castle and its inventory “to be preserved for the public.” The new owner of the castle, which began construction in 1867 on a hill, would be the company Llemark Inmobilien, which is a subsidiary of Klosterkammer, which promised to finance the costs of renovating the residence.

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The costs amount to 30 million euros, although some experts point out that to prevent the castle from becoming ruins, they will have to spend 60 million. When Ernest of Hanover found out he was opposed, he managed to stop the negotiation and the buyer withdrew, so the legal dispute began.
According to what Ernst August told the Hanover authorities seven years ago, before negotiations began on the sale of the 135-room residence, it was that the maintenance of this residence was ending its personal wealth: “I could no longer continue to bear the expenses.”