Khanate of Sibir
History

The area was originally inhabited by mainly Samoyedic and Ugric peoples. In the 11th century, Kipchaks began inhabiting the region which led to the Turkification of the population. In the 13th century, the Mongols conquered the region and it was incorporated into the territory of the Golden Horde. Some of the Tatars who arrived with Batu Khan during the conquests settled in the area.

The Khanate of Sibir was founded in the fifteenth century, at a time when the Mongols of the house of Jochi were generally in a state of decline. The original capital of the Khans was Chimgi-Tura. The first Khan was Taibuga, who was a member of the Borjigin. He was succeeded by his son Khoja or Hoca, who was in turn succeeded by his son Mar.

The Taibugids' control of the region between the Tobol and middle Irtysh was not uncontested. The Shaybanids, descendants of Jochi, frequently claimed the area as their own. Ibak Khan, a member of a junior branch of the Shaybanid house, killed Mar and seized Chimgi-Tura. A Taibugid restoration occurred when Mar's grandson Muhammad fled to the eastern territories around the Irtysh and killed Ibak in battle in c. 1493. Muhammad decided not to remain at Chimgi-Tura, but chose a new capital named Iskar (or Sibir) located on the Irtysh.The Russian conquest of Kazan in 1552 prompted the Taibugid Khan of Sibir, Yadigar, to seek friendly relations with Moscow. Yadigar, however, was challenged by a Shaybanid, Ibak's grandson Kuchum. Several years of fighting (1556–1563) ended with Yadigar's death and Kuchum becoming Khan.
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