In 1806 the khanate voluntarily submitted to Russian authority .
It was not until the aftermath of the Russo - Persian War ( 1804 - 1813 ) that Russian power over Dagestan was confirmed , and that Qajar Iran officially ceded the territory to Russian .
In 1806 the khanate voluntarily submitted to Russian authority , but it was not until the aftermath of the Russo - Persian War ( 1804 - 1813 ) that Russian power over Dagestan was confirmed , and that Qajar Iran officially ceded the territory to Russia .