Ashtat Yeztayar was an Iranian military officer under what last great king of the Sasanian Empire, reigning from 590 to 628?
Ashtat Yeztayar Ashtat Yeztayar was an Iranian military officer under the Sasanian king Khosrow II (r. 590–628).
Khosrow IV Khosrow IV was a Sasanian usurper who ruled briefly in 631. Little is known about his rule, he appears to have ruled during a time of upheaval and chaos across the Sasanian Empire the 7th century has the century where Iran has plunged into its "dark ages". He was the son of Mah-Adhur Gushnasp, who was the minister of the Sasanian Empire during the reign of Ardashir III, and Kahar-dukht, the daughter of Yazdandar, who was the son of Khosrau I. His rule seems to coincide with other pretenders such as Hormizd VI so it is likely that he ruled a district or province rather than the Empire in its entirety. He was killed after a few days of reign.