Kublai Khan (Mongol emperor) Genghis Khan would die three years after this event in 1227, when Kublai was 12. Kublai’s father Tolui would serve as regent for two years until Genghis’ successor, Kublai’s third uncle Ogedei, was enthroned as Khagan in 1229. After the Mongol conquest of the Jin dynasty, in 1236, Ogedei gave Hebei (attached with 80,000 households) to the family of Tolui, who died in 1232. Kublai received an estate of his own, which included 10,000 households. Because he was inexperienced, Kublai allowed local officials free rein. Corruption amongst his officials and aggressive taxation caused large numbers of Chinese peasants
Goryeo under Mongol Rule one of Kublai's daughters; later, a court lady from Korea called the Empress Gi became an empress through her marriage with Ukhaantu Khan, and her son, Biligtü Khan of the Northern Yuan dynasty, became a Mongol Khan. Furthermore, the kings of Goryeo held an important status within the Mongol imperial hierarchy, much like other important families of conquered or client states of the Mongol Empire (e.g. the Uyghurs, the (Oirats, and Khongirad). Some Mongolian sources claim that at least one Goryeo monarch who was raised at the Yuan court was the most beloved grandson of Kublai Khan. Militarily, following the