Sir E. Denison Ross, The heart of Asia
“ On the conquest of Transoxiana by Abū-l-Khayr and Shaybānī, both Khānates were simultaneously occupied by the invaders. Subsequently, when Shāh Isma`īl drove Shaybānī out of Khwārazm, he placed a Persian governor in charge of the province, but the Sunni people detested the Shi`ite Shāh, and expelled him in 921.452 During the Khākānship of Kuchunji the Uzbegs193 founded an independent principality in Khwārazm;453 Ilbars, son of a chief named Bereghe, being the first Khān of the new line. ”
