Sir Charles Edward Archibald Watkin Hamilton,[1][2] 5th and 3rd Baronet (10 December 1876 – 18 March 1939), known from 1923 as Sir Abdullah Hamilton, was a British aristocrat and convert to Islam.[3][4][5]
He was the son of Sir Edward Archibald Hamilton, 4th Baronet of Trebishun, Breconshire and 2nd Baronet of Marlborough House, Hampshire (1843–1915) and his wife Mary Elizabeth Gill. He inherited both baronetcies upon the death of his father in 1915.[3] He was also a descendant of William Hamilton, one of the five Kentish Petitioners of 1701,[3][6][7] great-grandson of Admiral Sir Edward Joseph Hamilton, 1st Baronet Hamilton of Marlborough House, direct descendant of the Duke of Abercorn and also Lord Hamilton who married Princess Mary Stewart of Scotland, daughter of James II of Scotland.[3] He served as a Lieutenant in the Royal Defence Corps and was at one time President of the Selsey (Sussex) Conservative Association, and also later a member of Sir Oswald Mosley's British Union of Fascists for a brief period during the 1930s.[8][9]