Jean de Noailles

Jean-Louis-Paul-François de Noailles, 5th Duke of Noailles (26 October 1739, Paris – 20 October 1824) was a French nobleman and was the fifth Duke of Noailles. He first became known for his efforts as a chemist which gained him the election as a member of the "Académie des sciences" in 1777. He was also a Knight of the Order of the Golden Fleece. Having emigrated in 1792, he lived in Switzerland until the Restoration in 1814, when he took his seat as a peer of France.
Marriage and children.
His first wife, Henriette Anne Louise d'Aguesseau and the couple had several children;