Maximilian Robespierre was the leader of the members of the Jacobin club which comprised of the less prosperous sections of society. His reign was known as the reign of terror because Robespierre followed a policy of severe control and punishment. All those whom he saw as being ‘enemies’ of the republic – ex-nobles and clergy, members of other political parties, even members of his own party who did not agree with his methods – were arrested, imprisoned and then tried by a revolutionary tribunal. If the court found them ‘guilty’ they were guillotined. The guillotine is a device consisting of two poles and a blade with which a person is beheaded. It was named after Dr Guillotin who invented it.