History of Sardinia a number of African Bishops in the island such as Fulgentius of Ruspe. In 533, Sardinia rebelled under the Vandal governor Godas, a Goth, who proclaimed himself "rex" of Sardinia asking aid to the Byzantines. In the summer of 533 Vandal forces (5000 men and 120 ships), led by Tzazo, arrived in Sardinia to stifle the Godas' rebellion and conquered Caralis, killing Godas and his followers . In the early 534 the Vandals of Sardinia surrendered immediately to the Byzantines when faced with news of the Vandal collapse in Africa; thenceforth the island was part of the Byzantine Empire, included
Kingdom of Sardinia when the new Kingdom of Sardinia and Corsica defeated the Arborea Judicatus in a battle in Sanluri and its sovereign rights were sold by the last Judex. Later, the title of King of Sardinia was granted by the Emperor of the Holy Roman Empire to Barisone II of Arborea and Enzio of Sardinia. The first could not reunify the island under his rule, despite years of war against the other Sardinian judices, and he finally concluded a peace treaty with them in 1172. The second did not have the opportunity. Invested with the title from his father, Emperor Frederick II