Sardinia-Piedmont was Savoy's composite monarchy, governed from Turin while Cagliari remained the island's capital.

After the War of the Spanish Succession, Victor Amadeus II gained Sicily in 1713 and exchanged it for Sardinia in 1720, joining the island to his mainland lands. Napoleon occupied those lands and forced the king to reside on Sardinia. In 1815 the Congress of Vienna restored the mainland possessions and added Liguria from the former Republic of Genoa.