Kingdom of Sardinia
On 17 March 1861, law no. 4671 of the Sardinian Parliament proclaimed the Kingdom of Italy, so ratifying the annexations of all other Apennine states, plus Sicily, to the Kingdom of Sardinia. The institutions and laws of the Kingdom were quickly extended to all of Italy, abolishing the administrations of the other regions. Piedmont became the most dominant and wealthiest region in Italy and the capital of Piedmont, Turin, remained the Italian capital until 1865, when the capital was moved to Florence. But many revolts exploded throughout the peninsula, especially in southern Italy, and on the island of Sicily, because of the perceived unfair treatment of the south by the Piedmontese ruling class. The House of Savoy ruled Italy until 1946 when Italy was declared a republic by referendum. In this referendum the southern regions, including Sardinia, voted overwhelmingly in favor of the House of Savoy, with the results being 63.8% in favor of maintaining the monarchy.
Republic of Genoa
The republic began when Genoa became a self-governing commune within the imperial Kingdom of Italy, and ended when it was conquered by the French First Republic under Napoleon and replaced with the Ligurian Republic. Corsica was ceded to France in the Treaty of Versailles of 1768. The Ligurian Republic was annexed by the First French Empire in 1805; its restoration was briefly proclaimed in 1814 following the defeat of Napoleon, but it was ultimately annexed by the Kingdom of Sardinia in 1815.