Maximilien de Robespierre was executed because of the things he did
during his lifetime. He was an important figure during the French
Revolution, as well as the Reign of Terror, which was a time of extreme
violence then. Robespierre executed many opponents himself, which is
something that was easy for him to do given his important role in the
society. Because of his evil doings, he was ultimately executed himself,
being the one who instigated the Reign of Terror.