The Reign of Terror was the result of conflicts between rival political groups of the Girondins and the Jacobins. This period of time lasted from September 1793 to July 1794, and it happened after the execution of King Louis XVI.
During the Reign of Terror, 16,000 people lost their heads. The goal was to rid France of anyone who was against the French Revolution. Famous people who lost their lives during the Reign of Terror included Marie Antoinette, Madame Roland, Philippe Egalite and Antoine Lovoisier. Basically, anyone who was a threat to the new government, including nobles, priests and hoarders, lost their lives.