Muhammad II of Khwarezmia had a messenger sent by this man beheaded.
Muhammad II of Khwarezmia had a messenger sent by this man beheaded. Merkits  kidnapped this man's wife Börte, and he employed the general Subotai. After this man's  death, his son Tolui served as regent until the succession of (*) Ögedei. This man's birth name  was Temujin, and his descendants include Jochi, Chagatai, and Kublai. For 10 points, name this  conqueror, the first Khan of the Mongol empire.
Muhammad II of Khwarezmia had a messenger sent by this man beheaded.
Genghis Khan (accept Chinggis Khan; accept Yuan Taizu; accept Borjigin Temujin  before mentioned)