During the First Fitna (656–661), the people of Zarang rebelled and defeated the Muslim garrison of the city. In 658, Yazdegerd III's son Peroz III reclaimed Sistan and established a kingdom there, known in Chinese sources as the "Persian Area Command". However, in 663, he was forced to leave the region after suffering a defeat to newly established Umayyad Caliphate, who had succeeded the Rashiduns.