The Buyids Seize Baghdad

The Buyids, a dynasty of Daylamite military adventurers from northern Iran, entered Baghdad in 945 and assumed the title amir al-umara, commander of commanders. The Abbasid caliph al-Mustakfi was blinded and deposed, and his successors became pensioners of the Buyid amirs. The arrangement was a constitutional paradox: a Shia family ruled in the name of a Sunni caliph whose spiritual prestige they preserved precisely because it legitimised their own authority. Real fiscal, military, and administrative power lay entirely with the Buyids, while the caliph retained only ceremonial and religious functions. The Buyid seizure marked the formal end of effective Abbasid temporal rule and the fragmentation of caliphal authority, occurring at the same moment that the Fatimids in Egypt and the Umayyads of Córdoba each claimed the caliphal title, leaving three rival caliphates.

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