Abbas I (Abbas the Great)äbäsˈ, ăbäsˈ, ăbˈəs, 1557–1629, shah of Persia (1587–1628), of the Safavid dynasty. In 1597 he ended the raids of the Uzbeks, and subsequently (1603–23) he conquered extensive territories from the Turks. He maintained diplomatic contacts with Europe, and with English aid he took (1622) Hormoz from the Portuguese and founded what is now the port of Bandar Abbas. He broke the power of the tribal chiefs and established the Shahsavan [friends of the shah]. At his capital at Esfahan, he erected many palaces, mosques, and gardens and did much to improve public works in Persia.
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