Qajar Dynasty, the ruling dynasty of Iran from 1794 to 1925. In 1779, following the death of Mo?ammad Karim Khan Zand, the Zand dynasty ruler of southern Iran, Agha Mo?ammad Khan (reigned 1779–97), a leader of the Turkmen Qajar tribe, set out to reunify Iran. By 1794 he had eliminated all his rivals, including Lo?f ?Ali Khan, the last of the Zand dynasty, and had reasserted Iranian sovereignty over the former Iranian territories in Georgia and the Caucasus. In 1796 he was formally crowned as shah, or emperor. Agha Mo?ammad was assassinated in 1797 and was succeeded by his nephew, Fat? ?Ali Shah ... (101 of 443 words)