Al-Mustakfi also gives Ahmad the honorific title…
January 946 CE
Al-Mustakfi also gives Ahmad the honorific title of "Mu'izz al-Dawla" ("Glorifier of the State").
Ahmad’s brother 'Ali is given the title of "'Imad al-Dawla" ("Support of the State"); another of Ahmad's brothers, Hasan, who has assumed control of northern Persia, gains the title of "Rukn al-Dawla" ("Pillar of the State").
Despite Al-Mustakfi's apparent acceptance of Buyid authority, Mu'izz al-Dawla fears the Caliph as a creature of the Turks.
In January 946, he breaks into the palace, drags al-Mustakfi from his throne, and drives him through the streets to the jeers of his troops.
The Caliph, having reigned for little more than a year, is blinded with red-hot irons and thrown in jail (where he will die five years later).
Mu'izz al-Dawla installs Al-Muti as caliph.
The city rises in chaos, and the Caliph's palace is looted.
Having thus reduced the Sunni caliphs to puppet status, Ahmad establishes Buyid rule.
Hereafter the brothers are known by their honorific titles of 'Imad ad-Dawlah ('Ali), Rukn ad-Dawlah (Hasan), and Mu'izz ad-Dawlah (Ahmad).
News of this event is received negatively by the Hamdanid amir Nasir al-Dawla, who rules over Mosul and the districts of the eastern Jazira.
Nasir al-Dawla had previously controlled Baghdad in 942 and he still entertains hopes of regaining the city; Mu'izz al-Dawla's takeover of the capital is therefore an unwelcome development for him.
Nasir al-Dawla has reason to be confident that he can defeat Mu'izz al-Dawla if he makes an attempt to capture Baghdad.
His army has been bolstered by the arrival of numerous Turkish soldiers who had fled from Baghdad just before Mu'izz al-Dawla's entrance into the capital, and he is much more familiar with the territory between Mosul and Baghdad than is his rival.
Mu'izz al-Dawla, on the other hand, is on less secure ground; Baghdad is in a sorry state thanks to years of mismanagement and he is hamstrung by its numerous financial and military problems.
Nasir al-Dawla furthermore gains a pretext for war when in Mu'izz al-Dawla deposes and blinds al-Mustakfi and replaces him with the more obedient al-Muti'.
As a result of these factors, Nasir al-Dawla takes a belligerent tone with the Buyids; he withholds the payment of tribute to Baghdad, refuses to recognize al-Muti' as caliph and continues to mint coins in al-Mustakfi's name.