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:Towering 52 meters above the sea, Bengtskär lighthouse is the tallest one in Scandinavia. The building started in in 1905 after the shipwreck of S/S Helsingfors and was completed in 1906. The lighthouse was designed by architect Florentin Granholm. On December a special petrol lantern, designed and built in Paris, was brought to Bengtskär and installed atop the tower.
German fleet bombarded Bengstkär in the First World War in 1914. Since the Gulf of Finland was heavily mined, it was not until 1919 that the surrounding seas were declared safe for shipping, that the light was lit again.
After the war the military value of Bengtskär increased as part of the defence system of independent Finland. In Second World War (1941) Soviet Union made a suprise attack to island. After a bloody battle, the small Finnish garrison emerged victorious. Intermittent repairs to the facility continued during the post-war period.