Jean-Paul-François, 5th duke de Noailles

Jean-Paul-François, 5th duke de Noailles (born Oct. 26, 1739, Paris—died Oct. 20, 1824, Fontenay-Trésigny, Fr.) was the son of Louis of Noailles, a lieutenant general, and a member of the French Académie des Sciences. Though he served in the army, his tastes were scientific, and for his eminence as a chemist he was elected to the Académie des Sciences in 1777. He became duc d’Ayen in 1766 on his grandfather’s death and duc de Noailles...