Eight people (or ten, see below) were executed for involvement in the gunpowder plot.
Everard Digby, Robert Wintour, John Grant, and Thomas Bates were hanged and then cut down and castrated, disembowelled, and then quartered on January 30th.
The next day Thomas Wintour, Ambrose Rookwood, Robert Keyes, and Guy Fawkes were hanged, drawn, and quartered.
Steven Littleton and Henry Garnet were executed some time later.
Robert Catesby and Thomas Percy were killed trying to escape after the plot was exposed. However their bodies were exhumed so that they also could be decapitated. It is debatable as to whether or not this can be counted as an execution, so I have not included it in the tally above.
They were executed, specifically by being hung, drawn and quartered. That is as horrible as it sounds.
Guy Fawkes was a Catholic explosives expert and could set off gunpowder without being killed
Other people.
Christians
Guy Fawkes was killed by the British authorities after being captured during the Gunpowder Plot of 1605, a failed attempt to blow up the House of Lords and assassinate King James I. He was executed on January 31, 1606, after being tortured and interrogated. His death was part of a broader crackdown on the conspirators involved in the plot.
The gunpowder was being hidden in the gunpowder plot. It was hidden in a cellar under the house of parliament.
Many people were but one of the most famous fables was that David Crockett was executed after being overwhelmed.
In the Stuart time families went to watch people being executed.
People were being executed for reasons other than actually being guilty.
Being fined, tortured, imprisoned, and executed (although not all of them all the time).
The letter to the king regarding the Gunpowder Plot, written by one of the conspirators, warned about the planned attack on Parliament and the assassination of King James I. It detailed the conspirators' intentions to use barrels of gunpowder to blow up the House of Lords during the State Opening of Parliament. The letter aimed to alert the king to the imminent danger and prevent the conspiracy from being executed. Ultimately, it contributed to the foiling of the plot, leading to the arrest of the conspirators.
GUnpowder made Castles obsolete. More people were injuried by the stones being blasted apart then were being protected by the ramparts.