During his later life he was nominated as Marzban of Persian Armenia, ruling briefly in 591.
The latter was, however, deposed and killed by the Sasanian nobles before Bahram could confront him.
One later year, Khosrau, along with Mushegh II and other nobles, marched towards Ctesiphon, and defeated Bahram, who then fled to Azerbaijan, and wrote a letter to Mushegh, urging him to betray Khosrau.
Bahram then fled to Central Asia and was killed shortly after.
Mushegh later resigned from the Marzban office, and retired, dying in 593.