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 By the end of the century, however, the castle was increasingly regarded as out of date from a military perspective.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
1st Cinque Ports Artillery Volunteers Ports AVCs (in most cases reverting to the numbering of May–August 1860). In 1880 the Admin Brigade was consolidated as the 1st Cinque Ports Artillery Volunteers, organised as follows: 1st Cinque Ports Artillery Volunteers The unit was later reduced to 13 batteries, and in April 1882 was assigned to the Cinque Ports Division of the Royal Artillery (RA). It was briefly (May 1887 to July 1889) designated the 4th Volunteer (Cinque Ports) Brigade, but reverted to its previous title and joined the Eastern Division, RA. In 1890 the Sussex batteries were separated to form the 2nd Cinque Ports Artillery Volunteers,