2. Hvidore CastleKlampenborg Hvidøre House is a former country house at Klampenborg, just south of Bellevue Beach, on the Øresund coast north of Copenhagen, Denmark. It is most known for serving as the home of Dowager Empress Maria Feodorovna of Russia, daughter of King Christian IX and mother of the last emperor of Russia, Nicholas II, after she was exiled by the Russian Revolution of 1917. It now serves as a conference and training venue for the Novo Group. From Wikipedia, the free encyclopedia.