The subsequent sources emphasized on the Sasanians' hatred of everything adapted from the Parthians. The existence of such a mentality in Ardashir is understandable; but even he was forced to establish his newborn government on Parthian foundations by the help of other remarkable Iranian houses, who were either affiliated with the Parthians or nursed by them. However, no change is seen in that hatred of the Parthians in the next generations of Sasanian emperors either. Therefore, it can be deduced that the Parthians enforced a more hard and tyrannical domination than presumed on their submitted shahs and that might have been the reason that facilitated Ardashir's conquest.