He succeeded his father as 3rd
Viscount Weymouth in January 1751 and served as
Lord Lieutenant of Ireland for a short time during 1765, although he never visited that country. Having become prominent in British politics as an influential member of the
Bloomsbury Gang, he was appointed
Secretary of State for the Northern Department in January 1768 and acted with great promptitude during the unrest caused by
John Wilkes and the
Middlesex election of 1768. He was then attacked and libeled by Wilkes, who was consequently expelled from the
House of Commons.
Falklands Crisis Before the close of 1768, he was transferred from the Northern Department to become
Secretary of State for the Southern Department, but he resigned in December 1770 in the midst of the
Falklands Crisis of 1770, a dispute with
Spain over the possession of the
Falkland Islands.
American War of Independence In November 1775, Weymouth returned to his former office of Secretary of State for the Southern Department, undertaking in addition the duties attached to the northern department for a few months in 1779, but he resigned both positions in the autumn of that year. This period covered the
American War of Independence. ==Later life==