Wikipedia
Chimgi-Tura
Chimgi-Tura or Chingi-Tura was a medieval city of the Siberian Tatars in 12th-16th centuries located in Western Siberia.
It was a capital of the Khanate of Sibir until the early 16th century, when its ruler Khan Muhammad decided not to remain at Chimgi-Tura, and chose a new capital named Qashliq located on the Irtysh.
After the Cossack ataman Yermak from Muscovy conquered the Siberian Khanate in the 1580s, the city of Chimgi-Tura was abandoned or burned. In 1586 the Russian fort Tyumen was built nearby. Modern Tyumen, one of the centres of the Russian oil industry, covers the site where Chimgi-Tura used to stand.