Jalal ad-Din
Legend has it that Muhammad, who fled to the Caspian Sea, being terminally ill, gathered his sons: Jalal ad-Din, Aqshah, and Uzlagh Khan and announced that he appointed Jalal ad-Din as heir to the throne, because only he could confront the enemy. Summoning the younger sons to obedience, he hung his sword on the belt of Jalal ad-Din. A few days later, Muhammad died and Jalal ad-Din was proclaimed a Khwarazmshah.