Camillo Benso, Count of Cavour
After the Revolutions of 1848, the apparent leader of the Italian unification movement was Italian nationalist Giuseppe Garibaldi. He was popular amongst southern Italians. Garibaldi led the Italian republican drive for unification in southern Italy, but the northern Italian monarchy of the House of Savoy in the Kingdom of Piedmont-Sardinia whose government was led by Camillo Benso, Count of Cavour, also had the ambition of establishing a united Italian state. Although the kingdom had no physical connection to Rome (deemed the natural capital of Italy), the kingdom had successfully challenged Austria in the Second Italian War of Independence, liberating Lombardy-Venetia from Austrian rule. On the basis of the Plombières Agreement, the Kingdom of Sardinia ceded Savoy and Nice to France, an event that caused the Niçard exodus, that was the emigration of a quarter of the Niçard Italians to Italy. The kingdom also had established important alliances which helped it improve the possibility of Italian unification, such as Britain and France in the Crimean War.