Jalal ud-Din Ali ibn Kara Yuluk Osman was born into the Bayandur tribe of the Aq Qoyunlu confederation.
[2][3] They had seven sons and one daughter, including Uzun Hasan and Jahangir Mirza, as well as Khadija Begum, who later married Shaykh Junayd of the Safavid dynasty.
[4] In 1435, after the death of his father in the Battle of Erzurum, Ali became the new ruler of Aq Qoyunlu, since his two older brothers had already died at that time.
The Timurid crown prince Muhammad Juki had recognized Ali Beg the ruler of Âmid (modern-day Diyarbakır) and as the bey of the Aq Qoyunlu.
[6] His cousin Kilij Arslan Bayandur, who ruled Palu in modern-day Elazığ, wanted to take over the beylik with the help of Qara Iskander of the Kara Koyunlu, but he could not succeed.