Gunpowder plot, November 5th,
1605
The conspirators, who began plotting early
in 1604, eventually expanded their members to a point where secrecy was impossible. One of their number, Thomas Percy (who had contacts at the Court of King James), hired a cellar beneath the House of Lords. Within this cellar were secretly stored 36 barrels (almost two tons) of gunpowder, overlaid with iron bars and firewood. The plan went awry, however, by way of a myserious letter received by Lord Monteagle on October 26th (10 days prior to the opening of Parliament).