Rouran Khaganate
The Rouran Khaganate (330–555) was the first people to use the titles Khagan and Khan for their emperors, replacing the Chanyu of the Xiongnu, whom Grousset and others assume to be Turkic. The Rourans were stated to be descendants of the Donghu people, who in turn are assumed to be proto-Mongols, or a "non-Altaic" group.