What is "mardanshah"

Mardanshah was a Sassanian general, the Arabs referred him to as Dhul Hājib: the "owner of bushy eyebrows" as was Bahman Jadhuyih.

Mardanshah was a 7th-century Sasanian prince. He was the son of the Sasanian shah Khosrau II and Shirin, and was the preferred successor of the Sasanian Empire. He was later killed along with his brothers and half-brothers by his half-brother Kavadh II in 628.