 The story of Yoshitsune ("Ah, Father, you were Strong") is a direct  parody of the mythologizing surrounding Minamoto Yoshitsune, the  younger brother of Minamoto Yoritomo, the first Shogun of Japan  beginning circa 1185. Yoshitsune later was hounded to his death by  Yoritomo, although legends persist that he actually fled Japan for  Mongolia and became none other than Genghis Khan.