King's sheriffs. It 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 courts of Brodhull and Guestling were established to protect the privileges of the Cinque Ports by the portsmen themselves. From the 15th century these courts had been largely replaced by the Lord Warden's Court at Dover. From the 16th century the principal business of the courts was the installation of the Lord Warden and the court is now only occasionally summoned. The office continued to be a powerful one. In 1550 the Mayor and Jurats of Dover refused to accept a Royal Writ because it was not accompanied by a letter of attendance from the Lord Warden. The member ports' parliamentary representatives were appointed by the Lord Warden at first; despite an act passed in 1689 to curb this influence, it continued until the 19th century. At the installation of a new Lord Warden, the Speaker of the Confederation of the Cinque Ports instructs the Lord Warden: "to undertake the duties of the Ancient and Honourable Office and to uphold the Franchises, Liberties, Customs and Usages of the port." The office of Speaker has traditionally rotated between the affiliate townships every year dating from at least 1550. Inaugurations are begun on 21 May, and membership is ordained through a longstanding maritime tradition of a principle of the prevailing winds coming from west to east. A unique uniform is specified for the Lord Warden (though Admiral of the Fleet Michael Boyce, Baron Boyce, whose term ended with his death in 2022, wore his naval uniform in preference). The uniform is very similar to a pre-1956-pattern Admiral's uniform (complete with cocked hat) trimmed in red and with Cinque Ports insignia. Sir Robert Menzies's uniform (pictured), which he wore as Lord Warden from 1966 to 1978, is preserved at the National Library of Australia. Barons of the Cinque Ports All