who died in Cairo in 1430. The same year Mamluk Sultan Barsbay marched on Amid, however Mamluks did not achieve a significant success. In 1432, he conquered Mardin. In 1434, upon Qara Iskandar's plunder of Shirvan, Khalilullah I asked help from Uthman Beg. He besieged and took Erzurum from the Qara Qoyunlu and gave the city to his son Sheikh Hasan. In August 1435, he was defeated by Qara Iskandar in the vicinity of Erzurum, and died soon after. References Sources Aq Qoyunlu rulers 1356 births 1435 deaths 15th-century monarchs in the Middle East 14th-century monarchs in the Middle East