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 By the end of the century, however, the castle was increasingly regarded as out of date from a military perspective.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
2nd Cinque Ports Artillery Volunteers and on 1 January 1902 became the 2nd Cinque Ports RGA (Volunteers) When the Volunteers were subsumed into the new Territorial Force (TF) under the Haldane Reforms of 1908, the 2nd Cinque Ports RGA merged with the 2nd Sussex RGA and transferred to the Royal Field Artillery (RFA) to form the II (or 2nd) Home Counties Brigade with the following organisation: II Home Counties Brigade, RFA The three batteries were each equipped with four 15-pounder guns. The unit was assigned to the Home Counties Division of the TF. Affiliated with the unit were the Imperial Service Cadet Corps, Eastbourne, and