Robert Cecil
Robert Cecil, 1st Earl of Salisbury, (1 June 1563 – 24 May 1612) was an English statesman noted for his direction of the government during the Union of the Crowns, as Tudor England gave way to Stuart rule (1603). Lord Salisbury served as the Secretary of State of England (1596–1612) and Lord High Treasurer (1608–1612), succeeding his father as Queen Elizabeth I's Lord Privy Seal and remaining in power during the first nine years of King James I's reign until his own death.The principal discoverer of the Gunpowder Plot of 1605, Robert Cecil remains a controversial historic figure as it is still debated at what point he first learned of the plot and to what extent he acted as an agent provocateur.
Source: Wikipedia