
Mackworth Castle, located near Derby in Derbyshire, is a Grade I listed building and scheduled ancient monument comprising a square, heavily battlemented gatehouse originally built before 1500. Dating to the 14th or 15th century, the gatehouse was intended as the entrance to a grand castle for the prominent Mackworth family, though the castle itself was never completed. The family later moved to their inherited estate in Rutland in 1655-1656 when the property was sold to Sir John Curzon. The gatehouse remains a striking example of Tudor-era military architecture and gained fame when it served as a filming location for the 1954 movie "The Black Shield of Falworth" starring Tony Curtis.