Çalım ɕʌˈlɯm was a citadel and a staff of Tatar troops, which was constructed during the Kazan War

Kazan War

The First Cheremis War or Kazan War 1552-1556 was a rebel war against the Muscovite Russia for the restoration of the Kazan Khanate.The rebel armies mostly consisted of Tatars, Chuvashes, Cheremises, Mordvins and Udmurts. Some Nogays were also involved to the war. Independent rebel governments...

 for the restoration of the Khanate of Kazan

Khanate of Kazan

The Khanate of Kazan was a medieval Tatar state which occupied the territory of former Volga Bulgaria between 1438 and 1552. Its khans were the patrilineal descendants of Toqa Temür, the thirteenth son of Jochi and grandson of Genghis Khan. The khanate covered contemporary Tatarstan, Mari El,...

 in 1552-1556. The citadel was constructed by the people under Mameshbirde

Mameshbirde

Mameshbirde was a rebel commander during Kazan War for the independence of Kazan Khanate in 1552-1556. As legend says, he was a son of Mari noble and Chuvash noble woman....

 at the right bank of Volga at the Sundır hill in 1555. It was situated in 160 çaqrım upper than Kazan

Kazan

Kazan is the capital and largest city of the Republic of Tatarstan, Russia. With a population of 1,143,546 , it is the eighth most populous city in Russia. Kazan lies at the confluence of the Volga and Kazanka Rivers in European Russia. In April 2009, the Russian Patent Office granted Kazan the...

. In 1556, it was seized by Russian troops and ruined.