Timur, Ulugh Beg's grandfather, came from the Turkic Barlas tribe which was a Mongol tribe that was living in Transoxania, today essentially Uzbekistan.
Timur, Ulugh humingi ng lolo, dumating mula sa Turko Barlas pangkat na kung saan ay isang Monggol tribu na nakatira sa Transoxania, ngayon mahalagang Uzbekistan.