The gatehouse in the south-west corner is the best surviving part of the castle.
The Scots had captured the castle in 1401, when it was the home of Christiana de Middleton and her son John, who were taken prisoner and ransomed, and after the English regained it, the Duke of Gloucester ordered that it be garrisoned against future attack by the Scots and the gatehouse was added around 1478.
The gatehouse stonework is still standing almost to its original height.
The castle was attacked and its outbuildings burned by the Armstrongs in 1541, as revenge for the earlier murder of Ambrose Armstrong when he had been caught thieving cattle, and the castle itself was ransacked and burnt by Border Reivers in 1583.
Standing in the gatehouse.
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