The role of the institution of the ministry in the relationship between the Iraqi Seljuk monarchy and the Abbasid caliphate.

Abstract The institution of the ministry, considered as the most premier institution and the head of the monarchy and caliphate bureaucratic system, played an important role in the relationship between the Iraqi Seljuk monarchy and the Abbasid caliphate. These relationships, which lasted for nearly 80years (511 to 590 AH), were divided into three distinct historical periods in terms of their ministerial role and the extent to which the ministers succeeded in empowering monarchy or caliphate. Although some well-known ministers such as ab-ol ghasem Dargozini in the first period and Kamal-ol-din mohammad Khazen in the second period, played an important role in this realationship, they didn’t succeed as much as Awnad-Din ibn Hubayra did in the third period. The purpose of this article is to examine the historical and political conditions of the Iraqi Seljuk government and the Abbasid caliphate system in a descriptive-analytical manner, while analyzing the role of the ministry in the structure of their government, to answer the question why the ingenious ministers of the first and Second period of these relations did not succeed in establishing governmental authority. The results of the present study showed that although the role of ministers in any government structure has been high or low according to their merits and abilities, but without other factors of power, such as monarchy or powerful caliphate and an organized state organization, no minister, even the most skillful of them did not succeed.