Trevor, Robert, 1st Viscount Hampden (1706 -1783)
Robert Trevor was born 17 February 1706, the third son of Thomas Trevor, 2nd Baron Trevor, and his second wife Anne, daughter of Robert Weldon. He was educated at Queen’s College Oxford, where he matriculated 21 February 1723, and took his B.A. in 1727. Attached to the Embassy to the Netherlands as Secretary, he later became Envoy Extrordinary to the States General. He married, 6 February 1743, at the Hague, Constantia, daughter of Peter Anthony de Hoybert, Lord van Kruynigen. In compliance with the will of John Hampden of Great Hampden in Buckinghamshire, whose estates he inherited, he took the name of Hampden by Royal licence 22 February 1754. A Commissioner of the Revenue of Ireland 1746, he was Joint Postmaster General 1759-1765, a Fellow of the Royal Society and of the Society of Antiquaries. He succeeded his half brother as 4th Baron Trevor 27 December 1764, and was created Viscount Hampden 14 June 1776. He died 22 August 1783 and was succeeded by his son Thomas Hampden Trevor as 2nd Viscount.