Dunvegan Castle was the seat of Clan MacLeod chiefs. Dunvegan Castle is the oldest continuously inhabited castle in Scotland and has been the stronghold of the chiefs of the clan for 800 years. A curtain wall was built round the hill in the 13th century around a former Norse fort which was only accessible through a sea gate. A castle was constructed within the curtain wall by Malcolm MacLeod around 1350.
Today Dunvegan castle is open to the public.References:
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.