In 626, Shahrbaraz quarrelled with the Sasanian king Khosrow II (r. 590-628) and mutinied against him. It is not known whom Sahralanzoyan supported, since he is not mentioned in any source thereafter and Shahrbaraz is described as the ruler of the province.[2] Following the end of the Byzantine–Sasanian war in 628, by 630/1, Egypt had returned to Byzantine hands.[1][2]