bughra

The term "bughra" was a Turkic tribal title, specifically held by the paramount leader of the western branch of the Qarluq confederation. This confederation was a significant Turkic tribal group in Central Asia, from which the Qarakhanid dynasty later emerged. The Qarluq established a new confederation around 745 CE after rebelling against the dominant Türks of the region.1

The Qarluq's internal organization featured a dual kingship system. The western branch, led by the bughra, was centered in Balāsāghūn, while the eastern branch, led by the arslan ("lion"), was based in Kashgar. The western Qarluq had increasing interactions with the Samanid dynasty and eventually established themselves as the ruling dynasty in Transoxania after the Samanids' decline. The title "bey" was also a traditional Turkic title for rulers of tribal groups and important officials.12