Which writer is famous for the work 'Les Rougon-Macquart'?

Les Rougon-Macquart is the collective title given to a cycle of twenty novels by French writer Émile Zola. Subtitled Histoire naturelle et sociale d'une famille sous le Second Empire (Natural and social history of a family under the Second Empire), it follows the lives of the members of the two titular branches of a fictional family living during the Second French Empire (1852–1870) and is one of the most prominent works of the French naturalism literary movement.

Émile Édouard Charles Antoine Zola (2 April 1840 – 29 September 1902) was a French novelist, playwright, journalist, the best-known practitioner of the literary school of naturalism, and an important contributor to the development of theatrical naturalism.