 Henceforth, the Turkic tribes recognized only the high status of the clan that inherited the Kagan title, but never again his unifying authority.Several Muslim historians state that after the loss by the Uygurs of their power (840), the supreme authority among the Turkic tribes passed to the Karluk leaders.Connection with the Ashina clan, the ruling clan of the Turkic Kaganate, allowed the Karluk dynasty to dress their authority with legitimate attire, and, abandoning the old title Yabgu, to take on the new title of Kagan.