Old Slains Castle

Old Slains Castle (otherwise known as Old Castle Slains) is a ruined castle near Collieston in Aberdeenshire, Scotland.

History
The 13th-century castle was originally the property of the Comyn Earls of Buchan. After their forfeiture in the 14th century it was given to Sir Gilbert Hay by Robert the Bruce in recognition for his support against the English.

In 1594, Francis Hay, 9th Earl of Erroll led a rebellion which was put down by James VI. The castle was destroyed with gunpowder and cannon.

After returning from exile, Hay built a New Slains Castle on the site of the former Bowness Castle near Cruden Bay.

Modern day
One wall of the castle remains standing, at approximately 25 m in height. In the 1950s, a 3-storey house was built within the ruins, adjoining a fishing cottage built in the 18th century. Since 1991 several archaeological excavations have been effected, the last one in 2007.

Structure
Originally a strongly built 5-storey oblong keep (of which a small part remains), a wall defending the landward side was added in the early 16th century.