Castle of St John

The Castle of St John, also known as Stranraer Castle,[1] is an early 16th-century L-plan tower house in the centre of Stranraer, in Dumfries and Galloway, southwest Scotland.

It has been used as a home, a court, a police station and as a military garrison during the "Killing Times" of Covenanter persecution in the 1680s.

[1] During the Victorian era, the castle was modified to serve as a prison, and it was used as an ARP base during the Second World War.

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