From Wikipedia

Conqueror Kublai Khan’s Dream

Kublai or Khubilai Khan
(September 23, 1215 – February 18, 1294)  was the fifth Great Khan of the Mongol Empire from 1260 to 1294 and the founder of the Yuan Dynasty in China. As the second son of Tolui and Sorghaghtani Beki and a grandson of Genghis Khan, he claimed the title of Khagan of the Ikh Mongol Uls (Mongol Empire) in 1260 after the death of his older brother Möngke in the previous year, though his younger brother Ariq Böke was also given this title in the Mongolian capital at Karakorum. He eventually won the battle against Ariq Böke in 1264, and the succession war essentially marked the beginning of the civil war of the Mongol empire. But the Mongol Empire, as a whole, remained united and strong. Kublai's influence was still strong in the Ilkhanate and Golden Horde, western parts of the Mongol Empire. His realm reached from the Pacific to the Urals, from Siberia to Afghanistan – one fifth of the world's inhabited land area.

In 1271, Kublai established the Yuan Dynasty, which at that time ruled over present-day Mongolia, Tibet, Eastern Turkestan, North China, much of Western China, and some adjacent areas, and assumed the role of Emperor of China. By 1279, the Yuan forces had successfully annihilated the last resistance of the Southern Song Dynasty, and Kublai thus became the first non-Chinese Emperor who conquered all China. He was the only Mongol khan after 1260 to win new great conquests.

As the Mongol Emperor who welcomed Marco Polo to China, Kublai Khan became a legend in Europe.