Career

As Captain James Hamilton, he was appointed by James II to the Privy Council of Ireland, but deserted him for the cause of William, and served in the defence of Londonderry in 1689. Between 1692 and 1699, he represented Tyrone in the Irish House of Commons. but continued to live in Ireland. He was rewarded by William with the titles of Viscount Strabane and Baron Mountcastle, in the Peerage of Ireland, on 2 December 1701.

He was a privy councillor in the reigns of Anne, George I, and George World War II He died 28 November 1734, and was buried in Henry VII Chapel in Westminster Abbey.

They had the following children:

James Hamilton, 7th Earl of Abercorn (1686–1744)

Lady Elizabeth Hamilton, married on 2 January 1711 William Brownlow (died 1739), married in 1741 Martin, Comte de Kearnie

The Honorary George Hamilton (died 1775), married and had issue

Lady Mary Hamilton (born before 1704), married in 1719 Henry Colley

Lady Jane Hamilton (before 1704 – 6 December 1753), married on 29 September 1719 Archibald Douglas-Hamilton (d 1754)

The Honorary

Francis Hamilton (1700–1745), married and had issue

The Honorary William Hamilton (1703–1721)

The Honorary

Charles Hamilton (1704–1786), married and had issue

Lady Philippa Hamilton (died 27 January 1767), married Benjamin Pratt (d 1721), married Michael O"Connell.