Masmughan

The collapse of the Sasanian Empire resulted in the rise of several independent dynasties in Tabaristan.

A certain Karenid named Mardanshah, carried the title of Masmughan and held control over Damavand and Larijan including its surrounding areas.

Another Karenid named Valash appears to bear the title of Masmughan, who served as Marzban of Miyano-du-rud, near Sari between the Kalarud river limited to the east with Karatughan.

Valash was later murdered in revenge by Sukhrab I, the ispahbadh of the Bavand dynasty.

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