Balearic Islands their state. However, the Cordoban emirate disintegrated in civil war and partition in the early eleventh century, breaking into smaller states called "taifa". Mujahid al-Siqlabi, the ruler of the Taifa of Dénia, sent a fleet and seized control of the islands in 1015, using it as the base for subsequent expeditions to Sardinia and Pisa. In 1050, the island's governor Abd Allah ibn Aglab rebelled and established the independent Taifa of Mallorca. For centuries, the Balearic sailors and pirates had been masters of the western Mediterranean. But the expanding influence of the Italian maritime republics and the shift of power
Balearic Islands declined between 2007 and 2017 while the largest-increasing populations were the Moroccans, Italians, and Romanians. Each one of the three main islands is administered, along with its surrounding minor islands and islets, by an insular council ("consell insular" in Catalan) of the same name. These four insular councils are the first level of subdivision in the autonomous community (and province) of the Baleares. Before the administrative reform of 1977, the two insular councils of Ibiza and Formentera were forming in a single one (covering the whole group of the Pitiusic Islands). This level is further subdivided into six comarques only