The leader of the French Revolution known for his radical views was Maximilien Robespierre. He emerged as a key figure during the revolution, particularly during the Reign of Terror (1793-1794), when the revolutionary government sought to purge France of perceived enemies. Robespierre advocated for radical social and political reforms, believing in the need for virtue and moral purity in governance. He played a prominent role in the Committee of Public Safety, which oversaw mass executions of counter-revolutionaries. Ultimately, his extreme measures led to widespread fear, and he was arrested and executed in 1794, marking a significant turning point in the revolution.