Ardashir (king of Marv) explained

Ardashir (Middle Persian:) was a Sasanian prince, who ruled Marv from ca. 240 to 262. He was either a brother or son of the Sasanian king Ardashir I (r. 224-242), who had installed him as the ruler of Marv, which was the outpost of his empire in the north-east.

Sources

• Book: Frye, R. N. . The History of Ancient Iran . 1984 . C.H.Beck . Richard Nelson Frye . 1–411 . 9783406093975 . registration . The history of ancient iran. .
• Book: Frye, R. N. . The Cambridge History of Iran . Bayne Fisher, William . Gershevitch, Ilya . Yarshater, Ehsan . Frye, R. N. . Boyle, J. A. . Jackson, Peter . Lockhart, Laurence . Avery, Peter . Hambly, Gavin . Melville, Charles . 1993 . Cambridge University Press. 0-521-20092-X . https://books.google.com/books?id=Ko_RafMSGLkC&q=Severus,+Ardashir&pg=PA124. The Political History of Iran under the Sasanians.