Ashina Helu
In the middle of the 7th century, Chigils, Chumuls and Karluks were united by the Western Turkic yabgu Ashina Helu in his anti-Tang uprising. Zuev reconstructs Helu's Old Turkic name as *"Aru", which, he contends, is identical with the Turkic-Manichean "arïg" (like "arïg dïntar" "pure priest").