Galdan Boshugtu Khan
The historian Barthold argued that only after Galdan Boshugtu Khan, the Khong Tayiji of the Zunghars, had successfully conquered and destroyed the power of Sayram did he move his encampment west to the valley of the Ili, ensuring his control of Zhetysu east of Sayram. Galdan sent forces against Sayram in 1681, which must have been unsuccessful because they returned in 1683, when Barthold tells us that his commander Rabtan (probably Tsewang Rabtan took the city and razed it.