The Khanate of Sibir, also historically called the Khanate of Turan, was a Turco-MongolKhanate located in southwestern Siberia. Throughout its history, rule over the Khanate was often contested between members of the Shaybanid and Taibugid dynasties; both of these competing tribes were direct patrilineal descendants of Genghis Khan through his eldest son Jochi and his fifth son Shayban (Shiban). The Sibir Khanate was itself once an integral part of the Mongol Empire, and later the White Horde and the Golden Horde.
The Sibir Khanate was administered by Mirzas who originated from various indigenous Siberian tribes. These Mirzas organized loosely knit dominions, which were all under the nominal authority of the Khan of Tyumen and Sibir. Mirzas also led the warriors of the Khanate of Sibir into battle and owed nominal allegiance to the Khan of Tyumen and Sibir.