Lord Warden of the Cinque Ports was combined from 1267 with the office of Constable of Dover Castle. However, from 1708 Walmer Castle at Deal was to be preferred as the official residence of the Lord Warden of the Cinque Ports. The Lord Warden also holds the office of Admiral of the Cinque Ports with a maritime jurisdiction extending to the middle of the English Channel, from Redcliffe near Seaford, in Sussex to the shore underneath the Naze Tower, encompassing Brightlingsea in Essex, the only Cinque Port north of the Thames. In earlier centuries the northern limit was taken as the Shoe Beacon in Essex. The
Cinque Ports held in 1569 in an effort to raise funds for the crumbling Cinque Ports. With the advance in shipbuilding techniques came a growth in towns such as Bristol and Liverpool and the wider development of ports such as London, Gravesend, Southampton, Chichester, Plymouth and the royal dockyards of Chatham, Portsmouth, Greenwich, Woolwich and Deptford. A further reason for the decline of many older ports may be ascribed to the development of the railway network across Britain, and the increased quantity of overseas trade it could distribute from the new major ports developing from the 18th century. Local Government reforms and