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 By the end of the century, however, the castle was increasingly regarded as out of date from a military perspective.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 Rgt provided S Battery at Eastbourne to the new regiment. In 1961, the new regiment merged with 257 (County of Sussex) Fd Rgt (with P Bty at Bexhill and Eastbourne). The full dress of the original artillery volunteers was based on that of the RA, but for ordinary parade the men wore a loose undress tunic and trousers of blue Baize. The 4th Battery of the 6th (Hastings) AVC, however, wore a naval uniform with sailors' caps until 1872. The badge of the Cinque Ports artillery volunteers was the Coat of arms of the Cinque Ports surrounded by a circlet.