Member of Parliament and member of the Board of Trade.

Member of Parliament for Petersfield (1754-61), Pontefract (1761-68), Old Sarum (1768-74), Wareham (1774-80), Wilton (1780-90), and Haslemere (1790-96). Lord of Trade (1759-61). Chief secretary to the lord lieutenant of Ireland (1761-64). Chancellor of the Exchequer of Ireland (1763-84).

Son of William and Helen (Hay) Hamilton. Educated at Oriel College, Oxford, and Lincoln’s Inn. Never married.