Abol-Hasan Qābūs ibn Wušmagīr ibn Ziyar Sams al-maʿālī
ابوالحسن قابوس بن وشمگیر بن زیار, شمس المعالی
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Qabus ibn Wushmagir was the Ziyarid ruler of Gurgan and Tabaristan in medieval Iran. He was the son of Vushmgir and a daughter of the Bavandi Ispahbad Sharwin II.