John Trevanion

John Trevanion (1667 – 15 August 1740) was a British politician who represented several Cornish constituencies in the House of Commons of England and the House of Commons of Great Britain.

Biography Trevanion was the son of Charles Trevanion of Caerhays and Jane Drummond, a daughter and co-heiress of Sir Maurice Drummond. In 1686, Trevanion was recommended to serve in James II's guards following reports that he had converted to Roman Catholicism and been disinherited by his father. Trevanion had, however, returned to the Church of England by the time of his father's death in 1703, and he represented Blackmore in the Cornish Stannary Parliament of that year.

Trevanion was among the MPs tasked with investigating the mismanagement of the Whig Junto. He became a founding member of the October Club and was regarded by Abel Boyer as one of the club's leading figures. He was a relatively inactive member of the Commons, but was loyal to the Harley ministry and on 18 June 1713 he voted for the French commerce bill. Trevanion retained his seat as a Tory at the 1713 British general election. On 15 April 1714 he made his only recorded speech of the Parliament during the debate on the motion that the succession was in danger. He was re-elected at the 1715 British general election, but subsequently transferred his loyalty to the Whig Townshend ministry, possibly to avoid suspicion of any involvement in the Jacobite uprising in Cornwall of 1715.