"Water all around it"

http://uwepetercom.blogspot.de/2012/09/w-t-e-r-ll-r-ou-nd-i-t-castle.html
Castle | Glücksburg | Germany | 2012-09-02
Glücksburg Castle (Danish: Lyksborg slot) is one of the most important Renaissance castles in Northern Europe. It was for the Duke's lines of the house Glücksburg a headquarter and was temporary residence of the Danish royal family. The building is located in Glücksburg near Flensburg Fjord. The family members of the house Glücksburg are related to almost all European dynasties. Origin: wikipedia