 The "lion" () Karluks persisted up to the time of the Mongols.In the Early Middle Age, three member tribes of the Göktürk Kaganate formed the Uch-Karluk (Three Karluks) union; initially, the union's leader bore the title Elteber, later elevated to Yabgu.After the split of the Kaganate around 600 into the Western and Eastern Kaganates, the Uch-Karluks (三姓葛邏祿), along with Chuyue (处月; later as Shatuo 沙陀), Chumi (处密), Gusu (姑蘇), and Bishi (畀失), became subordinate to the Western Turkic Khaganate.