Mongol Empire What is referred to in English as the Mongol Empire was called the "Ikh Mongol Uls" ("ikh": "great", "uls": "state"; Great Mongolian State). In the 1240s, one of Genghis's descendants, Güyük Khan, wrote a letter to Pope Innocent IV which used the preamble "Dalai (great/oceanic) Khagan of the great Mongolian state (ulus)". After the succession war between Kublai Khan and his brother Ariq Böke, Ariq limited Kublai's power to the eastern part of the empire. Kublai officially issued an imperial edict on 18 December 1271 to name the country Great Yuan ("Dai Yuan", or "Dai Ön Ulus") to establish the
The Legend of Kublai Khan She also feels uneasy because the young Kublai is highly favoured by his grandfather. Ögedei eventually succeeds his father as the Great Khan of the Mongol Empire. After Tolui is poisoned to death by Töregene, his sons, under the leadership of their eldest brother Möngke, want to avenge their father. Töregene plans to accuse Möngke and his brothers of plotting a rebellion if they seek to avenge their father, and hopes to use the opportunity to eliminate Tolui's family. At this critical moment, Kublai and his mother, Sorghaghtani, manage to calm down his brothers and get them to stay low