Émile Zola’s The Fortune of the Rougons (1871), the opening title in the series of twenty novels dealing with the Rougon-Macquart dynasty, explores the origins of the family against the backdrop of the 1851 coup d’état. Major themes across the series have their catalyst here: ambition, greed and psychological flaws are shown to pass from one generation to the next as a result of heredity and social environment. Zola contrasts the cynical opportunism of the Rougons with the romantic idealism of his younger characters. Class tensions are probed as the social-climbing Rougons manoeuvre between their peasant origins and their bourgeois aspirations.