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
Vandal Sardinia Belisarius had defeated Gelimero on August 30, 533 and occupied Carthage. He was followed by Cirillus, who had failed to reach Sardinia. Tzazo and Gelimer, together with what remained of the army, marched against the Byzantines but were defeated at the Battle of Tricamarum, from Carthage. Tzazo was killed while Gelimero, escaping capture, surrendered a few months later. Cirillus then went to Calaris where he showed Tzazo's head impaled on a pike to the Vandals of the garrison, who immediately surrendered. Thus the Vandal era in Sardinia ended in 534 and the Byzantine period began. The Sardinian dioceses of the