 If surviving the 4-5 meter fall, there then was neither any daylight or any way out.Also the eastern tower has in later centuries served as a prison for those serving life sentences.Around 1900 until 1940 a part of the fortress served as a forced labour institution for vagrant women

Initially built by Christian III of Denmark 1549–1559 as a purely defensive fortification with two complete moats, the inner with a width of .