At the outbreak of war with Berke of the Golden Horde around 659-60/1261-62, he was sent eastwards, according to the Armenian chronicler Kirakos (tr. E. Dulaurier, “Les Mongols d’après les historiens arméniens,” JA, 5e série, 11, 1858, p. 505), in order to collaborate with the Čaḡatay prince Alḡu, and is subsequently found at the time of Hülegü’s death in Rabīʿ II, 663/February, 1265 as governor of Khorasan and Māzandarān.
