Gunpowder Plot= Gunpowder Plot of 1605, in earlier centuries often called the Gunpowder Treason Plot or the Jesuit Treason, was a failed assassination attempt against King James I of England and VI of Scotland by a group of provincial English Catholics led by Robert Catesby.The plan was to blow up the House of Lords during the State Opening of England's Parliament on 5 November 1605, as the pre...