Qutayba ibn Muslim
In 709/710, Tarkhun, the Sogdian ruler of Samarkand, was overthrown by a rebellion because of his pro-Muslim policy, and was succeeded by another Sogdian prince named Gurak. After the fall of Tarkhun, his two sons fled to the court of Divashtich, where they were treated honorably. This made Divashtich's claim to Samarkand much stronger. In ca. 712, Divashtich, including other local Sogdian rulers such as Gurak, acknowledged the authority of the Umayyad Caliphate after an invasion by the Arab general Qutayba ibn Muslim.