Duqāq’s vizier was Abū al-Qāsim al-Ḥasan ibn ʿAlī al-Khwarizmī. Earlier he had taken part in a pitched battle near Aleppo alongside Duqāq’s brother, but his army was shattered and he was forced to withdraw to Damascus.
130 – The ruler of Khurasan, Arslān Arghun ibn Alp Arslān the Seljuq *
Sultan Arslān Arghun, son of Sultan Alp Arslān the Seljuq. When his brother, Sultan Malikshāh, died, he moved swiftly, seized Khurasan, and consolidated his control. He was oppressive, ill-tempered, and prone to harsh punishment of his personal guard. One of his own mamlūks entered his presence; Arghun rebuked him for tardiness in service. The servant offered an excuse, but Arghun would not accept it. Because the sultan was alone, the servant rushed at him with a dagger and killed him in Muḥarram 490 AH. His reign had lasted four years.
When Sultan Barkiyāruq ibn Malikshāh learned of the murder, he marched on Khurasan, took possession of it, and had the Friday sermon proclaimed for him as well in the lands beyond the Oxus. He appointed his brother, King Sanjar—whose rule would prove lengthy—as his deputy over Khurasan.
Arslān had earlier taken control of Balkh, Marw, and Termez; he oppressed the people, acted tyrannically, and demolished the wall of Nishapur and other cities. ʿImād al-Mulk ibn Niẓām al-Mulk served as his vizier, but Arslān later arrested him, extracted three hundred thousand dinars from him, and slaughtered him.
131 – Ibn al-Sawādī, Abū al-Ḥusayn al-Mubārak ibn Muḥammad **
The Imām and jurisconsult, Abū al-Ḥusayn al-Mubārak ibn Muḥammad ibn al-Sawādī al-Wāsiṭī,