 He was the fourth son of James Hamilton, 1st Earl of Abercorn (see the Duke of Abercorn) and the younger brother of the first Baronet of West Port (see above).His grandson, the second Baronet, succeeded as sixth Earl of Abercorn in 1701 and from there on the title became one of the many subsidiary titles of the earls and later marquesses and dukes of Abercorn.See Duke of Abercorn for further history of the title.