Born at Claye-Souilly to Louis Héracle Armand de Polignac, Marquis of Mancini and his wife, Diane Adélaide Zéphirine Mancini herself a granddaughter of the Duke of Nevers and the Duke of Noailles.
In 2008, Veolia Environmental Services launched a pilot facility for the production of biofuels from biogas emitted by non-hazardous waste stored at Claye-Souilly near Paris, France.