Castle Tioram ruins sits on the tidal island Eilean Tioram in Loch Moidart, Lochaber. The castle is the traditional seat of Clan MacDonald of Clan Ranald, a branch of Clan Donald. It was seized by Government forces around 1692 when Clan Chief Allan of Clanranald joined the Jacobite Court in France, despite having sworn allegiance to the British Crown. A small garrison was stationed in the castle until the Jacobite Uprising of 1715 when Allan recaptured and torched it, purportedly to keep it out of the hands of Hanoverian forces. It has been unoccupied since that time, although there are some accounts suggesting it was partially inhabited thereafter including storage of firearms from the De Tuillay in the 1745 Jacobite Uprising and Lady Grange's account of her kidnapping.
The curtain wall is believed to date from the 13th century whilst the tower and other interior buildings are of 15th to 17th century construction. Amie mac Ruari is said to have extended the castle in the 14th century.
The castle is now in extremely poor condition and in 1998 was closed to the public at the request of Highland Council; a major structural collapse occurred at the north west curtain wall in 2000.
The castle can be reached on foot across the tidal causeway, but there is no access to the interior because of the risk of falling masonry.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.