أرسلان أرغون بن ألب أرسلان

Arslan Arghun b. Sultan Alp Arslan the Seljuk — lord of Marw, Balkh, Nishapur and Tirmidh; a tyrannical and stubborn man. ¹

A mamluk of his killed him at Damghan in 490, and his nephew Barkiyaruq took Khurasan without a fight. ¹

Arslan-Arghun, a brother of Malikshah, seized Khurasan and the province of Balkh when Malikshah died. He defeated and killed another brother, Buribars, who had been sent against him in 488 AH (1095). He earned hatred for his punitive measures against the supporters of his defeated brother, and for destroying, as a precaution, the ramparts of Marw, Nishapur, Sarakhs and Sabzawar. He was killed in 490 AH by one of his slaves. His young son, aged seven, was easily swept aside by Sanjar, brother and lieutenant of the sultan Barkyaruk. ²

Ibn al-Athir, and the author of the Akhbar al-Dawla al-Saljukiyya, speak of an Arslan-Arghun, a brother of Alp Arslan, who was given the government of Khwarazm when Malikshah was proclaimed heir. The Akhbar calls him the son of Alp Arslan and so identical with Malikshah's brother; but Imad al-Din al-Bundari, followed by Ibn al-Athir, says that Malikshah's brother was twenty-six at his death and held only a small iqta in western Persia when Malikshah died. Nothing else is known of a brother of Alp Arslan of this name, so the entry concludes that two people of the name existed. Descendants of Malikshah's brother were still living at Marw in the middle of the sixth/twelfth century. ²