Persian aristocracy Conflict and Compromise with Kings in Sasanian Era

Economic and social History of Sasanian Era reveals constant conflict between Iranian aristocracy and Kings. This conflict plays key role in the decline and fall of the Sasanian. Methodology, this article is done based on descriptive, analytical study to explain the historical process of relation between aristocrats and Kings in Sasanian Era. The main hypothesis presents below argument: Expansion of commercial relations between East and West, growth of monetary economy and economy based on business, industry, urban development and transit roads and consequently transformation of social relations which all challenged the social system and threatened aristocratic system of agricultural rural economy. Sasanian kings from the first golden era or Khosro spring facing challenges between rural and urban economies, sought their economic independence via peasants and military autonomy via Espahbodan from rural forces and aristocrats. So, they increasingly enhanced their concentration of political power against aristocracy.