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
Sardinia is suggested that the name had a religious connotation from its use also as the adjective for the ancient Sardinian mythological hero-god Sardus Pater ("Sardinian Father" or "Father of the Sardinians"), as well as being the stem of the adjective "sardonic". In Classical antiquity, Sardinia was called a number of names besides "Sardò" () or "Sardinia", like (the Latinised form of ), "Sandaliotis" () and "Argirofleps" (). Sardinia is the second-largest island in the Mediterranean Sea (after Sicily and before Cyprus), with an area of . It is situated between 38° 51' and 41° 18' latitude north (respectively Isola del