Spencer Compton , 1st Earl of Wilmington , KG , KB , PC ( 1674ndash ; 2 July 1743 ) was a British Whig statesman and Prime Minister of Great Britain . He served in government from 1715 until his death . Spencer Compton , 1st Earl of Wilmington KG , KB , PC ( 1673 -- 2 July 1743 ) was a British Whig statesman who served continuously in government from 1715 until his death .