Kingdom of Sardinia and Aosta, dynastic possessions since the 11th century, the Principality of Piedmont (a possession built up in the 13th century), and the County of Nice (a possession since 1388). While in theory the traditional capital of the island of Sardinia and seat of its viceroys was Cagliari, the Piedmontese city of Turin was the "de facto" capital of Savoy. When the mainland domains of the House of Savoy were occupied and eventually annexed by Napoleonic France, the king of Sardinia made his permanent residence on the island for the first time in its history. The Congress of Vienna (1814–15), which
Kingdom of Sardinia Kingdom of Sardinia The Kingdom of Sardinia was a state in Southern Europe which existed from the early 14th until the mid-19th century. It was the predecessor state of the Kingdom of Italy. When it was acquired by the Duke of Savoy in 1720, it was a former Iberian state with weak institutions. However, the Savoyards united it with their possessions on the Italian mainland and, by the time of the Crimean War in 1853, had built the resulting kingdom into a strong power. The composite state under the rule of Savoy in this period may be called Savoy-Sardinia or