When Taj al-Dawla Ziyar ascended the throne, he made Iskandar the ruler of Kalarrustaq.
Iskandar became the new ustandar after his father's death in 1333, entrusting his brother Fakhr al-Dawla Shah-Ghazi with rule of Natelrustaq.
He then turned around and defeated the Sarbadar garrison at Sari, cutting off Mas'ud's line of retreat.
[3][4][5] Hasan II's wife (the sister of the Chalabi general Kiya Afrasiyab) accused him of seducing his stepdaughter and gained a (fatwa) from Amul which had him convicted.
The sons of Hasan II fled to Iskandar, who attempted to restore Bavandid rule, but suffered a defeat outside Amul.