The Wikipedia article of the day for November 5, 2016 is Robert Catesby.
Robert Catesby (1572?–1605) was the leader of the failed Gunpowder Plot of 1605, commemorated in Great Britain every 5 November as Guy Fawkes Night. His family were prominent recusant Catholics. He took part in the Essex Rebellion of 1601 but was captured and assessed a large fine, after which he sold his estate at Chastleton. The Protestant James I became King of England in 1603; after he exiled priests and reimposed fines on recusants, Catesby planned to kill him by blowing up the House of Lords with gunpowder as a prelude to a revolt. Early in 1604 Catesby began to recruit English Catholics to his cause, including Thomas Wintour, John Wright, Thomas Percy, and Guy Fawkes. A letter sent anonymously to William Parker, 4th Baron Monteagle, alerted the authorities, and on the eve of the planned explosion, during a search of Parliament, Fawkes was found guarding the barrels of gunpowder, and arrested. Catesby and the remaining plotters made a stand against a 200-strong company of armed men at Holbeche House in Staffordshire, where he was shot and killed. As a warning to others, his body was exhumed and his head exhibited outside Parliament.