Stenberga was an ancient castle built probably in the 14th century. It was fist mentioned in 1389 and built probably by Jakob Abrahamsson, the bailiff of Turku. In 1438 the castle was donated as the site for Naantali Bridgettines Abbey, but in 1443 the abbey was decided to move to the Ailos. The castle was located to the rock hill near Masku River. There has probably been a 13 x 13m tower made of stone.
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.