Due to Kavad's actions, his reign is seen as a turning point in Sasanian history, and has been argued by some scholars as playing a key role in the fall of the Sasanian Empire. The overthrow and death of Khosrow culminated in a chaotic civil war, with the most powerful members of the nobility gaining full autonomy and starting to create their own government. The hostilities between the Persian ("Parsig") and Parthian ("Pahlav") noble-families were also resumed, which split up the wealth of the nation. The civil war finally ended when Khosrow's eight year old grandson, Yazdegerd III, ascended the throne. The young king, however, inherited a disintegrating empire, which was dealt its last blow in 651 during the Arab conquest of Iran.