History of the Jews in the Balearic Islands the privileges of the Jews, and in 1325 bestowed on them the right of citizenship. He protected them from forcible baptism, and strictly forbade the baptism of their children against the parents' will. Permission was granted them (1331) to build a new synagogue in their quarter, but it was not to be too elaborate. As one means of preventing the erection of a handsome building, Jaime collected all their money into the state treasury. Under Pedro IV (1336–87), who in 1344 united Majorca with the kingdom of Aragon, the Jews of the Balearic Isles lived unmolested, with all their rights
Balearic Islands at 30,000. The part of the Mediterranean east of Spain, around the Balearic Isles, was called "Mare Balearicum", or "Sinus Balearicus". The Vandals under Genseric conquered the Islands sometime between 461 and 468 during their war on the Roman Empire. However, in late 533 or early 534, following the Battle of Ad Decimum, the troops of Belisarius reestablished control of the islands for the Byzantine Empire. Imperial power receded precipitately in the western Mediterranean after the fall of Carthage and the Exarchate of Africa to the Umayyad Caliphate in 698, and in 707 the islands submitted to the terms of