Augustin Bon Joseph de Robespierre, known as Robespierre the Younger, was a French lawyer and politician, the younger brother of revolutionary leader Maximilien Robespierre. His political views were similar to his brother's. When his brother was arrested on 9 Thermidor, Robespierre volunteered to be arrested as well, and he was executed by the guillotine along with Maximilien and 20 of his supporters.