After Napoleon's defeat, King Ferdinand IV was restored by the Congress of Vienna of 1815 as Ferdinand I of the Two Sicilies. He established a concordat with the Papal States, which previously had a claim to the land.[24] There were several rebellions on the island of Sicily against the King Ferdinand II, but the end of the kingdom was only brought about by the Expedition of the Thousand in 1860, led by Garibaldi, an icon of the Italian unification, with the support of the House of Savoy and their Kingdom of Sardinia with its economic, political and cultural powerhouse in Northern Italy. The expedition resulted in a striking series of defeats for the Sicilian armies against the growing troops of Garibaldi.