Dating in 871, Tønsberg is commonly believed to have been the oldest Norwegian town and one of the oldest recorded fortified locations in Norway. According to Snorri Sturluson, Tønsberg was founded before the Battle of Hafrsfjord under which King Harald I of Norway united Norway under his rule. Tønsberg was an important trading center and site of Haugathing, the Thing (assembly) for Vestfold and one of Norway's most important place for the proclamation of kings.In 1253, King Haakon Haakonson set up a castle, Tunsberghus, at the location of the modern Tønsberg municipality.
In 1503, after the Kalmar Union collapsed, Norwegian attempts to rebel were suppressed by Danish forces. Tunsberghus fortress was destroyed by Swedish soldiers and disloyal local peasants.
Only a few ruins of the fortress are now left. The modern-day tower (Slottsfjellet i Tønsberg) was raised in 1888 as a memorial of the historic fortress. The present tower was built during 1888 as a memorial of the historic fortress. In 1971, local authorities improved the insulation. At that time new plaques were mounted inside the tower. On the sides are the gilded signatures of two modern Kings of Norway: Haakon VII (1 August 1906) and Olav V (1 July 1958).
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.