In 1605, plotters, a group of Catholic conspirators, including Guy Fawkes, devised a plan to blow up the Houses of Parliament. Their aim was to overthrow the government, kill King James I, and make James's daughter, a Catholic head of state.
But the Gunpowder Plot was a failed attempt to assassinate King James I of England. The Plan was organised by Robert Catesby, a devout English Catholic who hoped to kill the Protestant King James and establish Catholic rule in England.