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Barlaslar, Barlas Boyu veya Barlas Aşireti ( Çağatayca/ - Barlās; Berlas veya Birlas) Orta Asya'da bulunan Türkleşmiş Encyclopædia Britannica, "Timur", Online Academic Edition, 2007. Quotation: Timur was a member of the Turkicized Barlas tribe, a Mongol subgroup that had settled in Transoxania (now roughly corresponding to Uzbekistan) after taking part in Genghis Khan's son Chagatai's campaigns in that region. Timur thus grew up in what was known as the Chagatai khanate." ...G.R. Garthwaite, "The Persians", Malden, ISBN 978-1-55786-860-2, MA: Blackwell Pub., 2007. (p.148) MoğolB.F. Manz, The rise and rule of Tamerlan, Cambridge University Press, Cambridge 1989, p. 28: "... We know definitely that the leading clan of the Barlas tribe traced its origin to Qarchar Barlas, head of one of Chaghadai's regiments ... These then were the most prominent members of the Ulus Chaghadai: the old Mongolian tribes - Barlas, Arlat, Soldus and Jalayir ..."M.S. Asimov & C. E. Bosworth, History of Civilizations of Central Asia, UNESCO Regional Office, 1998, ISBN 92-3-103467-7, p. 320: "… One of his followers was […] Timur of the Barlas tribe. This Mongol tribe had settled […] in the valley of Kashka Darya, intermingling with the Turkish population, adopting their religion (Islam) and gradually giving up its own nomadic ways, like a number of other Mongol tribes in Transoxania …" (Karaunas) göçebe konfederasyonu ve Büyük Timur İmparatorluğu'nun yönetici boyu.