Broborg is one of Uppland's most magnificent ancient strongholds, strategically placed on a ridge along the former seaway, the "highway" of its day, that led Vikings to Old Uppsala and the Baltic Sea. The castle was built on a high hill, about 40 m above sea level. The castle was used between 6th and 11th centuries.
The castle had an outer and inner wall. The outer wall protected the longest sides to the south and east.The inner wall is almost completely enclosed and has a circumference of about 200 m. There were entrances in the southeast and west.
The visible walls of the stronghold tell its history and the many sagas associated with the site capture our imagination. One such saga is about Grimsa, the daughter of a powerful Viking chieftain who lies buried in a mound near the stronghold.
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.