It is situated up on the eastern foothills of the Long Mountain guarding the route from Shrewsbury, Shropshire to Montgomery, Powys, on the border between England and Wales.

Caus Castle was built by Roger le Corbet in the late 11th century as a high motte with a very small summit on which stood a tower and a strongly defended inner bailey.

As a result, his family lands and role at Caus Castle were forfeited in 1404, only to be restored by Henry V of England in 1419 after his sons Ieuan ap Griffith and Sir Gruffudd Vychan captured John Oldcastle for Lord Charlton of Powys.

He was outlawed, a reward of 500 marks (£166 6s 8d) offered for his capture, and his lands were passed to John Sutton, 1st Baron Dudley, as the death of the young knight was not regarded as an accident.

[5] A 15th century wooden screen from Caus Castle was later installed in Minsterley Hall, which was built by the Thynne family in 1581.

[6] The castle was finally deserted after it was destroyed during the English Civil War after falling as a minor Royalist garrison in June 1645.