Walmer Castle against Charles' brother, King James II, the townsfolk of Deal seized Walmer Castle on behalf of William III, the Prince of Orange. By the end of the century, however, the castle was increasingly regarded as out of date from a military perspective. In the 18th century, Walmer Castle became the official residence of the Lord Warden of the Cinque Ports. The Lord Warden was originally a medieval title linked to five key ports along the coast of England; the position's prominence had faded, but it still retained important judicial and military functions. When Lionel Sackville, the Duke of Dorset, was
Cinque Ports coats of arms of several towns, and also in the heraldic banner (flag) of the Lord Warden of the Cinque Ports. This was originally created by heraldic dimidiation. The Cinque Ports Acts 1811 to 1872 is the collective title of the following Acts: Cinque Ports The Confederation of Cinque Ports () is a historic series of coastal towns in Kent and Sussex. It was originally formed for military and trade purposes, but is now entirely ceremonial. It lies at the eastern end of the English Channel, where the crossing to the continent is narrowest. The name is Norman French, meaning