Claim: Pierre Louis Prieur  was a French lawyer and secretary to the National Constituent Assembly from Sommesous.
Evidence: Pierre Louis Prieur (Prieur de la Marne) (1 August 1756 – 31 May 1827) was a French lawyer elected to the Estates-General of 1789. He became secretary to the National Constituent Assembly, and the violence of his attacks on the ancien régime won him the pun nickname of Crieur de la Marne ("Shouter of the Marne"). Born in Sommesous (Marne), Prieur practised as a lawyer at Châlons-sur-Marne until 1789, when he was elected to the States-General.