ISLAMIC, Dabwayhid Ispahbads of Tabaristan: Datburjmihr. Silver Hemidrachm; PYE 86 (120 AH). Obv: Crowned Sasanian style bust right. Reverse: Fire altar flanked by attendants; star and crescent flanking flames; alternating triple pellets and star-in-crescents in outer margin. Album 51. Weight: 2.04 grams Diameter: 24 mm Datburzmihr or Datburjmihr was an important figure in the Dabuyid (Dabwayhid) dynasty, a local Iranian ruling family that governed Tabaristan, an area in modern-day Mazandaran, northern Iran, during the early Islamic period. The Dabuyids managed to maintain their autonomy in the face of the Arab-Muslim conquest of Persia, even after the fall of the Sasanian Empire in 651 CE. Their success in resisting the Arab forces was largely due to the challenging mountainous terrain of Tabaristan and the strong local support they enjoyed. Datburzmihr, who held the title of "Spāhbed" (a military leader or commander), was a non-Muslim ruler who adhered to Zoroastrianism, the dominant religion in pre-Islamic Persia. During his reign, he was committed to preserving the independence of Tabaristan against the advancing Arab forces. The Dabuyid dynasty's resistance is a significant example of local defiance against the early Islamic caliphate's expansion. Despite their initial success, the Dabuyid dynasty eventually fell to the Abbasid Caliphate in the 760s CE, leading to the gradual Islamization of the region. Datburzmihr and the Dabuyids are remembered for their determined defense of their homeland during a pivotal time in Iranian history, marking the transition from Sasanian to Islamic rule.