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
Kublai Khan Then he married Chabi of the Khongirad, who was his most beloved empress. After Chabi's death in 1281, Kublai married Chabi's young cousin, Nambui, presumably in accordance with Chabi's wish. Kublai and his wives' children included: Kublai's seizure of power in 1260 pushed the Mongol Empire into a new direction. Despite his controversial election, which accelerated the disunity of the Mongols, Kublai's willingness to formalize the Mongol realm's symbiotic relation with China brought the Mongol Empire to international attention. Kublai and his predecessors' conquests were largely responsible for re-creating a unified, militarily powerful China. The Mongol rule of Tibet, Manchuria,