History of Savoy from 1815 to 1860
From 1815 to 1860, the history of Savoy began with Napoleon’s defeat at Waterloo and the Treaty of Paris on November 20, 1815, restoring the Duchy of Savoy to the House of Savoy after 23 years of revolutionary and Napoleonic rule. This restoration, however, deepened the divide between the Savoyard population and the authoritarian monarchy, as the House of Savoy’s efforts to unify the Italian Peninsula conflicted with local concerns, making Savoyards feel marginalized within an Italophone entity.
Source: Wikipedia — History of Savoy from 1815 to 1860 (CC BY-SA 4.0)