Strome Castle was originally built by the Macdonald Earls of Ross. Later in 1472 the castle was owned by the Clan MacDonald of Lochalsh and Alan MacDonald Dubh, 12th Chief of the Clan Cameron was constable on behalf of the MacDonalds of Lochalsh. In 1539 King James V of Scotland granted the castle to the Clan MacDonnell of Glengarry and Hector Munro, chief of the Clan Munro was constable of the castle for the MacDonalds of Glengarry.
Later in 1602 the castle was besieged by Kenneth Mackenzie, 1st Lord Mackenzie of Kintail, chief of the Clan Mackenzie, assisted by their allies the Clan Matheson. After the MacDonalds surrendered it was demolished and blown up. The MacDonnells of Glengarry built a new castle called Invergarry Castle.
In 1939 the ruined Strome Castle was presented to the National Trust for Scotland. Today the castle comprises a courtyard and the remains of a square tower.
References:Bomarsund fortress and garrison was built in 1832-1854 by Russian Empire to defence Åland Islands against enemies. British and French fleet attacked against it during the Crimean War in 1854. After a week of fighting the British stormed the remaining fort. Anglo-French forces destroyed it totally after battle. In the Treaty of Paris 1856, the entire Åland Islands were demilitarized, which is a status that has been preserved until this day.
Nowadays there are some ruins left and fortress area is open for visitors.