 During his early life, Vushmgir lived in Gilan, which was then under control of the Alids.In 931, Mardavij, the brother of Vushmgir and king of the Ziyarid dynasty, sent an army to conquer Tabaristan from Makan ibn Kaki, his army was, however, defeated.One later year, Mardavij and Vushgmir defeated Makan and conquered Tabaristan.