Battle of Chapakchur

Jahan Shah was defeated by Uzun Hasan in a battle near the sanjak of Çapakçur[3][4] in present-day eastern Turkey on October 30[1] (or November 11[2]), 1467.

Qara qoyunlu were vassals of the Jalayirid dynasty in Baghdad and Tabriz from about 1375, when the leader of their leading tribe, ruled over Mosul.

During Jahan Shah's reign the Kara Koyunlu's territory reached its largest extent, including huge swaths of land in Anatolia, most of present-day Iraq, central Iran, and even eventually Kerman.

After clever diplomacy and regional alliances he managed to stave off the Ottoman Turks and even fought several battles against Qara qoyunlu defeating Jahan Shah on the river Tigris in May 1457.

So with that in mind he secured his eastern borders with a peace treaty with the Timurid leader of Samarkand, Abu Sa'id Mirza and then invaded Aq Qoyunlu territory to his west.