Ак-Коюнлу
Aq Qoyunlu were Turkmen under the leadership of the Bayandur tribe, tribal federation of Sunni Muslims who ruled over most of Iran and large parts of surrounding areas from 1378 to 1501 CE. Aq Qoyunlu emerged when Timur granted them all of Diyar Bakr in present-day Turkey. Afterward, they struggled with their rival Oghuz Turks, the Kara Koyunlu. While the Aq Qoyunlu were successful in defeating Kara Koyunlu, their struggle with the emerging Safavid dynasty led to their downfall.