"Khosrow IV"@en . "Shahanshahof theSasanian Empire"@en . "0631Z"^^ . "0631Z"^^ . "Sassanian shah" . . . . . "0631Z"^^ . "Khosrow IV of Persia"@en . "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."@en . .