Answer:
Maximilien Robespierre, the architect of the French Revolution's Reign of Terror, is overthrown and arrested by the National Convention. As the leading member of the Committee of Public Safety from 1793, Robespierre encouraged the execution, mostly by guillotine, of more than 17,000 enemies of the Revolution.
Explanation:
Robespierre supported virtue and law over monarchy, famously called for liberty and fraternity, successfully toppled the aristocracy, and created a more democratic system in France. He also helped bring about a more equitable system for imprisonment (enforced after the revolution).