The Chamber of Deputies is a house of the bicameral Parliament of Italy (the other being the Senate of the Republic). The two houses together form a perfect bicameral system, meaning they perform identical functions, but do so separately. Pursuant to article 56 of the Italian Constitution, the Chamber of Deputies has 630 seats, of which 618 are elected from Italian constituencies, and 12 from Italian citizens living abroad. Deputies are styled The Honourable (Italian: Onorevole) and meet at Palazzo Montecitorio. The Chamber and the parliamentary system of the Italian Republic and under the previous Kingdom of Italy is a continuation of the traditions and procedures of the Parliament and Chamber of Deputies as established under King Charles Albert, (1798-1849), during the Revolutions of 1848, and his son Victor Emmanuel II, (1820-1878) of the Kingdom of Sardinia-Piedmont which led in the "Italian unification 'Risorgimento' movement" of the 1850s and '60s, under the leadership of then Prime Minister, Count Camillo Benso of Cavour ("Count Cavour").