[9] The main Sasanian cities of the eastern region of Khorasan−Nishapur, Herat and Marw were now under Hephthalite rule.
[10] Peroz' brother, Balash, was elected as shah by the Iranian magnates, most notably Sukhra and the Mihranid general Shapur Mihran.
[11] Immediately after ascending the throne, Balash sought peace with the Hephthalites, which cost the Sasanians a heavy tribute.
Given the situation of the weakness in Iran, Balash did not send an army to fight the rebels, which forced him to conclude peace with the Armenians.
[2] Sukhra played a main role in Balash's deposition,[2] and appointed Peroz's son Kavad as the new shah of Iran.