Khosrau I
1.1. Zarmehr (537–558) reinstated King Kavadh in 598, and he and his brother fought in the battle against the White Huns (Hephthalites) and supported and aided Khosrau I known as Anushirvan (r. 531–579). For their loyalty Khosrau I gave Zarmehr the fief of Zabolestan and the rulership over Gilan, where his line reigned as Persian vicegerents until 687 AD.