Guy Fawkes

Assassanation
Guy Fawkes was part of an Catholic English group, who made a plot to kill the Protestant King James I. Fawkes and his group began by renting a room near the English Parliament system. They dug a tunnel underneath the parliament and loaded about 36 barrels of gunpowder. However because of the plague, James I and the members of parliament wouldn't go into the building, leading for Fawkes to be discovered on November 5th 1605.

Motive
Fawkes, like most catholics in England, disliked the new "Chruch of England" that was introduced during the reign of King Henry VIII. So he tried to kill all the protestant members of parliament and the protestant king.