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Trematon Castle sits in nine acres of beautifully landscaped gardens.
They say an Englishman's home is his castle, but with this property you get two for the price of one.
An enormous manor house which has an ancient castle sitting in the back garden has gone on the market for £850,000.
The historic Trematon Castle was built shortly after the Norman Conquest in the 11th century by Robert, Count of Mortain.
It was sold to Richard, Earl of Cornwall in 1270 and since then it has been owned by the Earls and Dukes of Cornwall. Currently, it is owned by Prince Charles' Duchy of Cornwall.
The 860-year-old, Grade II listed castle near Saltash in Cornwall is now in ruins but some areas are still standing, such as the keep which has 30ft high walls.