In a letter from Usuv Beg to the Russian tsar, Usuv Beg expressed gratitude to the Romanovs for sheltering Yazidis, who had fled from the Ottoman Empire 60 years previously, under the leadership of his grandfather, Temur Agha. In addition, he writes that his people are Yazidi Kurds.
Usuv Beg wrote a letter to the Russian Tsar thanking them for sheltering Yazidis who had fled the Ottoman Empire 60 years earlier, led by his grandfather, Temur Agha.  He also identifies his people as Yazidi Kurds.