The Karluks were part of the First Turkic and Uyghur khaganates. They were composed of three tribes, therefore their ruler mostly called Sanxing Yabghu () in 8th century. In 742, they were named "Right Yabghu" by Basmyl khagan Ashina Shi. Like Basmyls, they were ruled by a branch of Ashina tribe.
