John Boys (Royalist) Boys himself went to London rather than continue further military resistance while others of the Regiment went on to serve at Wallingford Castle. During August 1648, he made a futile attempt to raise the Siege of Walmer Castle in Deal, one of the Cinque Ports, and customary home of the Lord Warden. Sir Algernon Sydney replaced him as Warden in 1648. In 1659, Boys was held as a prisoner in Dover Castle for "petitioning for a free Parliament", but was released on 23 February 1660. He was then, reputedly, granted the office of Receiver of Customs at Dover from Charles
Cinque Ports Fortress Royal Engineers Fourth Army by the time of the Armistice, while 547 Company moved to VI Corps in September and to Third Army by November 1918. 546th and 547th Army Field Companies were disbanded in France on 4 June 1919 and 1 May 1919 respectively. When the TF was constituted as the Territorial Army in the 1920s, the Cinque Ports (Fortress) RE was reformed as three Lights Companies, forming part of the Coast Defence Troops in 44th (Home Counties) Divisional Area. During World War II the Cinque Ports Fortress RE once again provided a field unit: 579 Army Field Company, formed in