Azkajwar is first mentioned in the mid-690s, when his kingdom was invaded by Umayya ibn Abdallah, who was the Umayyad governor of Khurasan.

During the early 700s, Yazid ibn al-Muhallab, the new Umayyad governor of Khurasan, invaded Khwarazm but was eventually repulsed by the forces of Azkajwar.

[2] Azkajwar is later mentioned in 712, when he was faced by a rebellion of his younger brother Khurrazadh, and had tensions with his rival, the king of Khamjird.

Unable to solve his problems, he secretly sent envoys to the new Abbasid governor of Khwarazm, Qutayba ibn Muslim,[3][4][5] who was at that time in Merv.

However, Khusrau was shortly defeated and killed by the Umayyads, who made Azkajwar's son Askajamuk II the new ruler of Khwarazm.