William Russell, Lord Russell, English politician (d. 1683)
William Russell, Lord Russell (29 September 1639 – 21 July 1683), was an English politician. He was a leading member of the Country Party, forerunners of the Whigs, who during the reign of King Charles II, laid the groundwork for opposition in the House of Commons to the accession of an openly Catholic king in Charles's brother James. This ultimately resulted in Russell's execution for treason, almost two years before Charles died and James acceded to the throne.