The south bastion and bridge across the moat at Walmer Castle, Kent. The castle was built in 1539–40 as one of a chain of coastal artillery forts begun by Henry VIII in the late 1530s in the face of threatened invasion by Spain. From 1708 it became the official residence of the Lords Warden of the Cinque Ports, a position occupied by many distinguished people including the Duke of Wellington, Sir Winston Churchill and the late Queen Elizabeth the Queen Mother. It was adapted over the years to make it a more comfortable and fashionable home.