Arthur Wellesley, 1st Duke of Wellington after "half a lifetime together, they had come to understand each other at the end". He had found consolation for his unhappy marriage in his warm friendship with the diarist Harriet Arbuthnot, wife of his colleague Charles Arbuthnot. Harriet's death in the cholera epidemic of 1834 was almost as great a blow to Wellington as it was to her husband. The two widowers spent their last years together at Apsley House. Wellington died at Walmer Castle in Deal on 14 September 1852. This was his residence as Lord Warden of the Cinque Ports. Walmer Castle was said to have been
Lord Warden of the Cinque Ports powers of muster", and the Constableship of Dover Castle, later added (1267) to the Warden's office, enabled him to keep a garrison and administrative staff, including the Clerk and the Lieutenant of the Castle. The coat of arms of the Cinque Ports first appeared in 1305, second amongst the earliest English known heraldic emblems, predating even the coat of arms of the City of London. The coat of arms of the Cinque Ports displays three ships' hulls and three lions conjoined to these hulls, all in gold. These may originally have been "Gules three lions passant gardant in pale "