Uzun Hasan, following the defeat and execution of Abu Said, the Timurid ruler of southern and western Persia, had had Yadgar Muhammad Mirza proclaimed as Abu Sa'id's successor and provided him with Timurid forces so that he could take over Khurasan, which is controlled by Sultan Husayn Mirza Bayqarah.

Although Yadgar Muhammad Mirza had been defeated by Husayn in battle in September 1469, fresh reinforcements had been sent by the Ak Koyunlu leader.

Furthermore, two of Uzun Hasan's sons have arrived to assist him.

Eventually Husayn is compelled to evacuate Herat, which Yadgar Muhammad Mirza occupies in July 1470.

Despite this, his troops are unreliable and Husayn reenters Herat six weeks later.

Yadgar Muhammad Mirza, who is captured and promptly executed by his enemy, is the last descendant of Shahrukh Mirza to play a dominant role in the politics of the Timurid principalities.