Esim khan, grandson of Sameke khan’s younger son and grandson of Tauke khan, was one of Kazakh khans who ruled in second half of XVIII century. The years of his birth and death unknown. Such sultans and his sons as Shanghay, Aishuak and Kodaymende are known in history. He ruled khanate in 1756–1798. Supported by elders of small localities around Turkestan and nomadic Kazakh settlements, he was elected to be khan to opposite Abulmambet khan. In 50–60s of XVIII century he fought for Turkestan together with Abulmambet khan and in autumn of 1758 protected the city from the enemy. In 1762, Abylai sultan and famous Kazybek bi from Middle zhuz concluded a treaty saying that Abulmambet and Esim will no longer rule Turkestan and other surrounding towns. According to peace agreement, Turkestan and adjacent localities would be divided between two khans. Half of Turkestan and adjacent localities were in possession of Abulmambet khan. Second half of the city and adjacent localities were in possession of Esim khan. After Abulmambet’s death in 1769, half of the city was taken over by his son Bolat. The city was headed by Esim khan and Bolat khan. (KAZAKH KHANS 2015: 176). Due to the fact that in 1798 South Kazakhstan regions submitted to Tashkent ruler Djunuskozha, Esim khan’s authority was abolished in Turkestan and its outskirts (History of Kazakhstan in Russian sources, 2005: 161).