Augustin Bon Joseph de Robespierre was the younger brother of French Revolutionary leader Maximilien Robespierre.He was born in Arras, the youngest of five children of the lawyer Maximilien-Barthelemy-François de Robespierre and Jacqueline-Marguerite Carraut, the daughter of a brewer. His mother died when he was one year old, and his grief-stricken father abandoned the family to go to Bavaria, where he died in 1777. He was brought up by an aunt and trained as a lawyer. Like his brother, he was a radical during the Revolution.At the outset of the Revolution, he was prosecutor-syndic of Arras. In 1791, he was appointed Administrator of the département of Pas-de-Calais. In September 1792, he was elected to the National Convention, where he joined his brother in The Mountain and the Jacobin Club.Becoming Député-en-Mission to the Army of Italy in 1794, he used his influence to advance Napoleon Bonaparte's career, after reading Napoleon's pro-Jacobin pamphlet titled Le souper de Beaucaire.With the fall of Maximilien Robespierre in the coup d'état of 9 Thermidor , those associated with him were subjected to a witch-hunt-like series of attacks from the Thermidorians.