Azerbaijani khanates and the conquest by Russia
In 1747 Nadir Shah, the strong ruler who had established his hold over Persia eleven years earlier, was assassinated in a palace coup, and his empire fell into chaos and anarchy. These circumstances effectively terminated the suzerainty of Persia over Azerbaijan, where local centers of power emerged in the form of indigenous principalities, independent or virtually so, inasmuch as some maintained tenuous links to Persia's weak Zand dynasty.
Thus began a half-century-long period of Azerbaijani independence, albeit in a condition of deep political fragmentation and internal warfare. Most of the principalities were organized as khanates, small replicas of the Persian monarchy, including Karabagh, Sheki, Ganja, Baku, Derbent, Kuba, Nakhichevan, Talysh, and Erivan in northern Azerbaijan and Tabriz, Urmi, Ardabil, Khoi, Maku, Maragin, and Karadagh in its southern part. Many of the khanates were subdivided into mahals (regions), territorial units inhabited by members of the same tribe, reflecting the fact that residue of tribalism was still strong.

Long a key fortress and citadel guarding the Ottoman-Persian frontier, Maku was one of many Azerbaijani khanates that gained semi-independence in the chaotic period following the death of Nadir Shah in 1749.