Barmakeh and the factors of conflicts in Arab and Iranian in Abhusids aron s Age

Being supported by Irnnians, Abbasids took the power as a result, they paid special attention to jrnnian ministers. Among Iranian ministers in abasids covert, al barmak and al sahl families were of significant position. The social and scientific valve of barmacks and their supporting Iranians made Arabs envious, those who feared Iranians power and influence. The competition caused many conspiracies against barmaks and finally led to their collapse. The study of causes of the collapse and the competition among Iranians and Arabs to take power in abnsids court is one of the most important political issues in early part of Abbasids era. Yahya barmkys struyyle to put haron in power resulted in his and his children stalling power. yahya was the first minister, who signed decrees on behalf of the khalif, fazl was very popular because of his good behavior. Jafar was khalifs company and trustee.