Factors of restoration of Abbasid political power in Mustarshid and Muqtafi period (512-555 AD)

Political power increased at the end of the Abbasid caliphate period (447-656), especially during the Nāṣir period (575-622). The return of the political and military power of the Abbasids, rather than being indebted to the Nāṣir period, was due to the measures and political conditions of the two previous caliphs, Mustarshid (529-512) and Muqtafi (555-530). The problem of this research is to examine the factors influencing the change in the relationship between the caliphate and the Seljūks during the period of these two caliphs, which led to a change in the process of restoring the position of the caliphate during the period of Nāṣir. The question derived from the problem is, what were the factors of restoring political and military power of the Abbasids during the period of Mustarshid and Muqtafi? It seems that during the caliphate period of these two caliphs, With the reduction of political-military power of the Seljūks due to the intervention of third powers, the political and military power of the Abbasid caliphate was restored. The findings of this research, which was conducted with historical method and statistical analysis, showed that among the six caliphs before Nāṣir, the contribution of two caliphs, Mustarshid and Muqtafi, was more important in reviving the political and military status of the caliphate. This importance is due to the personality and length of the caliphate period of these two caliphs, intra-dynasty differences and the instability of the Seljūk sultanate period.