Marco Polo famously visited, for 10 points, what 13th century ruler, founder of Yuan dynasty, the grandson of a more famous Mongol emperor.
This man served as a provincial governor during the rule of his older brother Mongke, whose death resulted in a three year civil war between this man and his younger brother Ariq Boke. During his reign, this ruler moved his capital to Dadu and this son of Tolui also attempted to conquer Japan twice, but his fleet was destroyed both times by a divine wind, or kamikaze. He had a home suitable for a son of God built in Xanadu, described as a stately pleasure-dome by Samuel Taylor Coleridge.  Marco Polo famously visited, for 10 points, what 13th century ruler, founder of Yuan dynasty, the grandson of a more famous Mongol emperor.
This man served as a provincial governor during the rule of his older brother Mongke, whose death resulted in a three year civil war between this man and his younger brother Ariq Boke.
{Kublai Khan} [or {Khubilai Khan;} prompt on Khan – do not accept Genghis Khan]