The second son of the Hon. Frederick Hamilton (d. 1715) and Sophia Hamilton (d. 1748), Gustavus Hamilton succeeded his grandfather as the second Viscount Boyne in 1723. He was a Member of Parliament for Newport, Isle of Wight, between 1736 and 1741, and was invested as a Privy Counsellor in 1763.
This picture is one of several early copies after Hogarth's original portrait, which is recorded in the Boyne collection. These copies are likely to have been executed under Hogarth's close supervision, by at least two or three members of his close circle, including Francis Hayman.
We are grateful to Elizabeth Einberg for her thoughts on this picture.