Cliveden (pronounced /ˈklɪvdən/) is an English country house and estate in the care of the National Trust in Buckinghamshire, on the border with Berkshire. The Italianate mansion, also known as Cliveden House, crowns an outlying ridge of the Chiltern Hills close to the South Bucks villages of Burnham and Taplow. The main house sits 40 metres (130 ft) above the banks of the River Thames, and its grounds slope down to the river. There have been three houses on this site: the first, built in 1666, burned down in 1795 and the second house (1824) was also destroyed by fire, in 1849. The present Grade I listed house was built in 1851 by the architect Charles Barry for the 2nd Duke of Sutherland.