Bahram IV, was the Sasanian King of Kings of Iran from 388 to 399. He was likely the son and successor of Shapur III.
Drachma of Bahram IV, minted at Herat
Drachma of Bahram IV, minted at Spahan or Ctesiphon
Onyx stamp-seal of Bahram IV wearing his characteristic crown and standing on the body of an unknown fallen foe. Stored in the British Museum
Yazdegerd I was the Sasanian King of Kings of Iran from 399 to 420. A son of Shapur III, he succeeded his brother Bahram IV after the latter's assassination.
Bahram IV
…became regular, with several new mints established in his empire. Like his father, Bahram IV was killed by the nobility; he was succeeded by his brother Yazdegerd I. He is notable for being portrayed on two seals, one during his tenure as Kirmanshah; and the other as shahanshah…
5th-century plate of Yazdegerd I slaying a stag.
Drachma of Bahram IV (r. 388–399)
Solidus of Arcadius (r. 383–408)
Gold dinar of Shapur II (r. 309–379)