 Following this event, open military conflicts across France Kingdom began.The Edict of Nantes is the consequence of this period.The fortified town of Langres, famous for Denis Diderot author of the Encyclopédie, the Renaissance castle of Joinville, the Lake Der-Chantecoq (one of the biggest artificial lake in Europe), the Cirey-sur-Blaise castle where Voltaire lived for a while in with Émilie du Châtelet and the village of Colombey-les-Deux-Églises where Charles De Gaulle lived until his death are all major attractions.