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The final decade

The reinforcement of Crimea displeased the pro-Moscow elements of the Kazan Khanate, and some of these noblemen provoked a revolt in 1545. The result was the deposition of Safa Giray. A Moscow supporter, Şahğäli, occupied the throne. Following that year, Moscow organized several campaigns to impose control over Kazan, but the attempts were unsuccessful.

With the help of the Nogays, Safa Giray returned to the throne. He executed 75 noblemen, and the rest of his opposition escaped to Russia. In 1549 he died, and his 3-year-old son Ütämeşgäräy was recognized as khan. His regent and the de facto ruler of the khanate was his mother Söyembikä. The administration of the ulan Qoşçaq gained a degree of independence under her rule.

At that time Safa Giray's relatives (including Devlet I Giray) were in Crimea. Their invitation to the throne of Kazan was vitiated by a large portion of vernacular nobility. Under Qoşçaq's government relations with Russia continued to worsen. A group of disgruntled noblemen at the beginning of 1551 invited a supporter of Tsar Ivan the Terrible, Şahğäli, for the second time.

At the same time the lands to the west of the Volga River (Taw yağı) were ceded to Russia. Ütämeşgäräy, along with his mother, was sent to a Moscow prison. Şahğäli occupied the Kazan throne until February 1552. Anti-Moscow elements in the Kazan government exiled Şahğäli and invited the Astrakhan prince Yadegar Mokhammad, along with the Nogays, to aid them.