Who tried to blow up James I?

The most notable attempt to blow up King James I of England was the Gunpowder Plot of 1605. This conspiracy was orchestrated by a group of English Catholics, including Guy Fawkes, who aimed to assassinate the king and blow up the House of Lords during the State Opening of Parliament. The plot was ultimately foiled, leading to the execution of the conspirators and the annual commemoration of Guy Fawkes Night on November 5th.