Poulenc was born in the 8th arrondissement of Paris, the younger child and only son of Émile Poulenc and his wife, Jenny, "née" Royer. Émile Poulenc was a joint owner of Poulenc Frères, a successful manufacturer of pharmaceuticals (later Rhône-Poulenc). He was a member of a pious Roman Catholic family from Espalion in the département of Aveyron. Jenny Poulenc was from a Parisian family with wide artistic interests. In Poulenc's view, the two sides of his nature grew out of this background: a deep religious faith from his father's family and a worldly and artistic side from his mother's. The critic Claude Rostand later described Poulenc as "half monk and half naughty boy".