هولاكو خان
Sometime after Chajju's revolt, the Mongols invaded the north-west frontier of the Delhi Sultanate. The invasion was led by Abdullah, who was a grandson of Hallu (Hulagu Khan) according to Ziauddin Barani, and a son of "the prince of Khurasan" according to Yahya's "Tarikh-i Mubarak Shahi".