Chagatai language
The Barlas controlled the region of Kish (modern Shahrisabz, Uzbekistan) and all of its lineages seem to have been associated with this region. In contrast to most neighboring tribes who remained nomadic, the Barlas were a sedentary tribe. Due to extensive contacts with the native population of Central Asia, the tribe had adopted the religion of Islam, and the Chagatai language, a Turkic language of the Qarluq branch, which was heavily influenced by Arabic and Persian. Although the Barlas were not always exogamous, most marriages recorded were outside the tribe.