Mongol conquest of the Song dynasty Mongol conquest of the Song dynasty The Mongol conquest of the Song dynasty under Kublai Khan (r. 1260–1294) was the final step for the Mongols to rule the whole of China under the Yuan dynasty. It is also considered the Mongol Empire's last great military achievement. Before the Mongol–Jin War escalated, an envoy from the Song dynasty arrived at the court of the Mongols, perhaps to negotiate a united offensive against the Jin dynasty, who the Song had previously fought during the Jin–Song Wars. Although Genghis Khan refused, on his death in 1227 he bequeathed a plan to attack the
The Legend of Kublai Khan while secretly building up their forces. Following Ögedei Khan's death, Töregene becomes the Regent of the Mongol Empire for some years until her son, Güyük, is elected as the new Great Khan. When Güyük dies in a conflict against his cousin Batu, his wife Qaimish takes over as the Regent for a brief period of time until Möngke becomes the new Great Khan. A few years later, after Möngke dies in a battle against the Song Empire at Diaoyu Fortress, Kublai and his younger brother Ariq Böke engage in a power struggle to seize the succession. Kublai eventually overcomes his