households in Gaochang. The Rouran Khaganate, which was based in Mongolia, appointed a Han Chinese named Kan Bozhou to rule as King of Gaochang in 460, and it became a separate vassal kingdom of the Khaganate. Kan was dependent on Rouran backing. Yicheng and Shougui were the last two kings of the Chinese Kan family to rule Gaochang.

At this time the Gaoche was rising to challenge power of the Rouran in the Tarim Basin. The Gaoche king Afuzhiluo killed King Kan Shougui,