The Khanate of Sibir, also historically called the Khanate of Turan, was a  Turco-Mongol Khanate 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.