I made a mistake apparently, it was the protestants trying to blow up the cathards, sorry

eh?
http://en.wikipedia.org/wiki/Gunpowder_Plot :
The Gunpowder Plot of 1605, or the Powder Treason, as it was known at the time,[1] was a failed attempt by a group of provincial English Catholics to kill King James I of England, his family, and most of the Protestant aristocracy in a single attack by blowing up the Houses of Parliament during the State Opening on 15 November 1605 (5 November 1605 on the Gregorian calendar)[2][3]. The conspirators had also planned to abduct the royal children, not present in Parliament, and incite a revolt in the Midlands.