Jahan Shah
In 1436 Shah Rukh once more installed a Timurid governor in Tabriz, this time Qara Iskander's brother Jahan Shah. Iskander marched on Tabriz but was defeated by Jahan Shah at Sufiyan to the north of the city, having been betrayed by some of his emirs - one of them being his nephew Shah Ali (son of Shah Muhammad). He then fled and took refuge in the castle of Alinja. Jahan Shah besieged the castle and during the siege Iskander used a last chance to ally with Mamluks. However he was murdered by his own son Shah Kubad before they reached for help.