 Indeed, during the first years of his rule coins were only minted in Pars, Sakastan, and Khuzestan, approximately corresponding to the regions of the southwest ("Xwarwarān") and southeast ("Nēmrōz"), where the "Parsig" was based.The "Pahlav", who were mainly based in the northern portion of the empire, refused to mint coins of him.Even in the south Yazdegerd's rule was not seemingly secure; a Sasanian claimant to the throne, Khosrow IV, minted coins at Susa in Khuzestan around this time, which he would do till 636.