The "Nahlin" was the yacht of King Edward VIII from 1936 to 1937. He used it to be alone with Wallis Simpson. It was built in 1930.
1937 it was sold to Romanian King Carol II for £120,000 and renamed "Luceafarul". When he abdicated in 1940 it was taken over by the Romanian Ministry of Culture to become first a museum, later a restaurant.
After being recovered in 1989 it's now a private yacht.
When looking at it, it looks similar to the Royal Yacht "Dannebrog" in use by the Royal Danish family. The "Dannebrog" was commissioned 26. May 1932.