 Complete the following phrase:  Jalal al-Din Mangburni , also known as Jalal al-Din Khwarazmshah  was the last Khwarazmshah of the Anushtegin line, ruling parts of Iran and northwestern India from 1220 to 1231. He was the son and successor of Ala ad-Din Muhammad II. He is best known as a heroic fighter against the Mongol Empire and credited with halting the Mongol expansions into the 