"Ahmad ibn Buya (Persian: احمد بن بویه, died April 8, 967), after 945 better known by his laqab of Mu'izz al-Dawla (Arabic: المعز الدولة البويهي, "Fortifier of the Dynasty"), was the first of the Buyid emirs of Iraq, ruling from 945 until his death.
The son of a Daylamite fisherman who had converted to Islam, Ahmad ibn Buya was born in the mountainous region of Daylam, and by 928, he along with his two brothers served the Daylamite military leader Makan ibn Kaki. However, they quickly changed their allegiance to the Ziyarid ruler Mardavij; some years later they rebelled against him after finding out that he planned to murder one of them. In 935/6, Ahmad ibn Buya unsuccessfully invaded Kerman, and was later sent to Istakhr. From there he started making incursions into Khuzestan and later Iraq; by 945, he was officially recognized as the ruler of Iraq and Khuzestan and had received the title of "Mu'izz al-Dawla" from the Caliph, while his two brothers were the rulers of other territories, having also received titles from the Caliph." - (Wikipedia (en) 22.11.2021)
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