Arslan al-Basasiri al-Turki

Arslan al-Basasiri, a Turk who had been a Mamluk of Baha al-Dawla ibn Buyah. The caliph al-Qa'im promoted him over the Turks and gave him their affairs, and the khutba was given in his name on the pulpits of Iraq and Khuzistan. Then he rebelled against al-Qa'im, and came to Baghdad in 450 AH with the Egyptian banners, and called for al-Mustansir al-Ubaydi, ruler of Egypt. ^{2 1}

He seized the caliph in Dhu al-Hijja and sent him to Anah, where he imprisoned him. It is said that al-Qa'im was sheltered for a year by the Arab amir Harish ibn al-Mujalli al-Uqayli. Then Tughril Beg the Seljuk came, fought al-Basasiri, and killed him on Thursday in the middle of Dhu al-Hijja. His head was taken to Baghdad, paraded and crucified. Al-Qa'im returned to Baghdad. ^{2 1}

Al-Suyuti, in "History of the Caliphs", says that al-Qa'im was convinced of his bad belief, but this judgement is attributed to that source. ¹

On his nisba "al-Basasiri", Ibn al-Imad says it refers to a town in Fars called Basa, and that it is an irregular form against the usual rule. ²