Al-Muqallad ibn al-Musayyab

Abu Hassan al-Muqallad ibn al-Musayyab (Arabic: أبو حسن المقلد بن المسيب, romanized: Abū Ḥassān al-Muqallad ibn al-Musayyab), known with the honorific Husam al-Dawla (Arabic: حسام الدولة, romanized: Ḥusām al-Dawla, lit. 'Sword of the State'), was an Uqaylid chieftain. He succeeded his older brother, Muhammad, as ruler of Mosul, succeeding in expelling the Buyid governor from the city. His attempts to create a centralized state failed, however, as he had to share power with his older brother Ali, and respect the tribal customs of the Uqayl tribe. His ambitions led him to turn south, towards Buyid-held Iraq, where he came to control a number of towns around Baghdad, including Kufa. In late 1000, he entered into negotiations for the capture of Baghdad, but was assassinated on 22 January 1001.