 After the death of Adud al-Dawla, the Buyid Empire was thrown into civil war; the Empire was disputed between his two sons Samsam al-Dawla and Sharaf al-Dawla.Samsam al-Dawla ruled Iraq, while Sharaf al-Dawla ruled Fars and Kerman.In 986, a Daylamite officer named Asfar ibn Kurdawayh rebelled against Samsam al-Dawla, and changed his allegiance to Sharaf al-Dawla.