Anshan fell under Persis Achaemenid rule in the 7th century BC, having been captured by Teispes (675–640 BC), who was an ancestor of Cyrus the Great and styled himself "the great king, king of Anshan". For another century during the period of Elamite decline, Anshan was a minor kingdom, until the Achaemenids in the 6th century BC embarked on a series of conquests from Anshan, which became the nucleus of the Persian Empire. The most famous conqueror who rose from Anshan was Cyrus the Great.