Mingarry Castle was considered a strategically important site in terms of communication with overseas areas and as an entranceway to the Sound of Mull. Originally built in the 13th century for the Clan MacDonald of Ardnamurchan, the castle has had many different occupants. King James IV of Scotland used it as a stronghold for fighting off Clan Donald in the late 15th century. In 1515 the castle was besieged by the Clan MacDonald of Lochalsh and again two years later when they finally took the castle.
In 1588 the chief of the Clan MacLean of Duart resided there after capturing the chief of the Clan MacIan of Ardnamurchan. In 1588, one of the ships of the Spanish Armada, named the San Juan de Sicilia, landed on Mull and MacLean of Duart used troops from the ship to aid him in his warring against the MacDonalds of Clanranald and the MacIans of Ardnamurchan. On one occasion, a force from the ship besieged to the castle for three days before withdrawing.
Other occupants over the years included the Clan Campbell, the Earls of Argyll (in 1612), and Alasdair Colkitto MacDonald who fought the English Parliamentarians of Oliver Cromwell in 1644. The majority of the current building dates from the 17th century onwards. Mingarry is roughly hexagonal in shape with nine-foot-thick walls, thicker on the seaward side.
References:The Château de Foix dominates the town of Foix. An important tourist site, it is known as a centre of the Cathars. Built on an older 7th-century fortification, the castle is known from 987. In 1002, it was mentioned in the will of Roger I, Count of Carcassonne, who bequeathed the fortress to his youngest child, Bernard. In effect, the family ruling over the region were installed here which allowed them to control access to the upper Ariège valley and to keep surveillance from this strategic point over the lower land, protected behind impregnable walls.
In 1034, the castle became capital of the County of Foix and played a decisive role in medieval military history. During the two following centuries, the castle was home to Counts with shining personalities who became the soul of the Occitan resistance during the crusade against the Albigensians.