 Coupled with his failure to counter the mounting financial crisis, this last disaster led to Ibn Muqla's dismissal and arrest.Ibn Muqla's dismissal marks also the final end of the independence of the Abbasid caliphs, for shortly after Ibn Ra'iq was appointed to the new post of "amir al-umara" ("commander of commanders"), a military-based office that became the "de facto" ruler of what remained of the Caliphate and deprived the Caliph from all real authority.Ibn Ra'iq had the possessions of Ibn Muqla and his son confiscated, and Ibn Muqla in turn began to conspire against the "amir al-umara".