During this period, the Safavid Shah Abbas the Great (r. 1588–1629) made a number of attempts to capture Basra, a major rival for his own commercial port city of Bandar Abbas, and a base for the Portuguese traders in the region. The Safavid attempts in 1624, 1625, and 1628–1629 during the War of 1623–1639 proved unsuccessful, through a combination of Portuguese interference, pressing concerns on other fronts and, finally, Abbas' death.[2]