The Siege of Kazan in 1552 was the final battle of Russo-Kazan Wars. It led to the fall of Khanate of Kazan. However, it was not the last battle on the khanate's territory. After the fall of Kazan, rebel governments formed in Çalim and Misätamaq, and a new khan was invited from the Nogais. This continuation guerrilla war was ended only in 1556.