Duntrune Castle is thought to be the oldest continuously occupied castle on mainland Scotland. It was originally built by the MacDougall clan in the 12th century, along with several other castles in the area, including the MacDougall stronghold of Dunollie Castle near Oban. Duntrune Castle was eventually taken by the Clan Campbell. In 1644, the castle was besieged by the rival MacDonalds, under Alasdair Mac Colla. The Campbells sold Duntrune in 1792, to the Malcolms of Poltalloch. The castle is now owned by Robin Neill Malcolm, current clan chief of the Clan Malcolm.
The curtain wall of the castle dates from the 13th century, although the tower house which forms the main part of the castle is of the 17th century. The castle was renovated in 1954.
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.