Khosrow I, traditionally known by his epithet of Anushirvan, was the Sasanian King of Kings of Iran from 531 to 579. He was the son and successor of Kavad I.
Khosrow I on an ornamental plate in BnF Museum
Kavad I on a Sassanid plate
Solidus of the Byzantine emperor Justin I
14th-century Shahnameh illustration of Khosrow I seated on his throne
Hormizd IV was the King of Kings of Sasanian Iran from 579 to 590. He was the son and successor of Khosrow I and his mother was a Khazar princess.
Khosrow I
…Sasanian Empire had reached its greatest extent since Shapur II, stretching from Yemen in the west to Gandhara in the east. He was succeeded by his son Hormizd IV. Khosrow is the New Persian variant of his name used by scholars; his original name was Middle Persian, Husraw, itself derived from Avestan Haosrauuah…
Drachma of Hormizd IV, minted at Spahan
Drachma of Khosrow I Anushirvan (r. 531–579)
15th-century Shahnameh illustration of Hormizd IV seated on his throne
Solidus of the Byzantine emperor Maurice (r. 582–602)