The significant leader of the French Revolution known for their radical approach was Maximilien Robespierre. As a member of the Committee of Public Safety, he played a crucial role during the Reign of Terror, advocating for extreme measures against perceived enemies of the revolution. Robespierre believed in maintaining virtue and purity through the violence of the Terror, endorsing widespread executions of those he viewed as threats. His influence marked a pivotal period in the revolution, ultimately leading to his downfall and execution in 1794. Robespierre's legacy embodies the complexities of revolutionary zeal and moral righteousness.