Erstavik estate was first mentioned in 1356 when it was given to Bengt Larsson. It was acquired by Petersen family in the 18th century and his descendants still own the castle. In the Great Northern War 1719 Russian fleet persecuted also Erstavik and several farms were burned down. The current main building is designed by Jean Eric Rehn and it was build in the 1760s. The three-storey house includes an chapel and two wings. interior is well-preserved sample of Rococo and Gustavian style.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.