The Aq Qoyunlu (Persian: آق‌ قویونلو, Azerbaijani: Ağqoyunlular آغ‌قویونلولار‎) was a culturally Persianate, Sunni Turkoman tribal confederation founded in the Diyarbakir region by Qara Yuluk Uthman Beg that ruled parts of present-day eastern Turkey from 1378 to 1503, and in their last decades also ruled Armenia, Azerbaijan, much of Iran, Iraq, and Oman where the ruler of Hormuz recognised Aq Qoyunlu suzerainty. The Aq Qoyunlu empire reached its zenith under Uzun Hasan.