Research objectives: The purpose of this research is to study genealogical data of one of the supporters of the Golden Horde khan, Uzbek. This was Nangudai who played an important role in promotion of Central Asian dynasties ruling in Khorezm and Khiva khanate of the 18th – early 20th centuries. Research materials: The main sources for research were Turkic-language work by Firdaus al-Iqbal, other Persian sources (Jami at-Tawarikh, Mujmal-i Fasihi, Muizz al-Ansab, etc.), Kazakh shezhire, and historiography data. Results and scientific novelty: All known sources on the genealogy of the Golden Horde emir, Nangudai, the prominent political figure of the era of Uzbek Khan, have been analyzed. The research reveals some details that prove the existence of another person with the same name who was the authentic ancestor of Nangudai. The Kazakh shezhire is singled out separately, within the framework of which there are four versions of its origin. Besides, the names from the shezhire, Nogai and Senke-biy, coincide with the names of his real ancestors or relatives from “Firdaus al Iqbal”. That there are six versions of Nangudai’s genealogy in historiography has been revealed. In addition, this research proves the reliability of genealogy from “Firdaus al Iqbal” with the correction that the Nogai mentioned in it was not identical to the Golden Horde’s Nogai, but was his namesake and contemporary. All sources and publications concerning the genealogy of Kutluk-Timur, a contemporary of Nangudai and Emir Khan Uzbek, are considered. It is revealed that there are five versions of Kutluk-Timur’s origin.
Zhaxylyk Sabitov (2025) studied this question.