Stanely Castle is located in the waters of Stanely Reservoir. It was probably built in the early 15th century, on an island within a marsh. The castle is now a ruin. Since 1837 it has been partially submerged by the reservoir, and is completely inaccessible. When the water is drained it can be seen that the castle stands on a narrow promontory, which is connected to the reservoir bank on the southwest.
Stanely was the ancient seat of the Danzielstons. In the early 15th century the estate passed to the Maxwells of Calderwood, who sold it on in 1629 to Lady Ross of Hawhead. In the 18th century, it passed to the Boyle Earls of Glasgow. The castle was then used as a school, but was abandoned by the early 19th century. It was sold by the 4th Earl of Glasgow to the Paisley Water Company, who built the present reservoir.
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.