In Mongolia, the Kublaids reigned as Khagan of the Mongols, however, descendants of Ögedei and Ariq Böke usurped the throne briefly. Under Dayan Khan (1480–1517) a broad Borjigid revival reestablished Borjigid supremacy among the Mongols proper. His descendants proliferated to become a new ruling class. The Borjigin clan was the strongest of the 49 Mongol banners from which the Bontoi clan proper supported and fought for their Khan and for their honor. The eastern Khorchins were under the Hasarids, and the Ongnigud, Abagha Mongols were under the Belguteids and Temüge Odchigenids. A fragment of the Hasarids deported to Western Mongolia became the Khoshuts. The Qing dynasty respected the Borjigin family and the early emperors married the Hasarid Borjigids of the Khorchin. Even among the pro-Qing Mongols, traces of the alternative tradition survived. Aci Lomi, a banner general, wrote his History of the Borjigid Clan in 1732–35. The 18th century and 19th century Qing nobility was adorned by the descendants of the early Mongol adherents including the Borjigin. Asian dynasties descended from Genghis Khan included the Yuan dynasty of China, the Ilkhanids of Persia, the Jochids of the Golden Horde, the Shaybanids of Siberia, and the Astrakhanids of Central Asia. As a rule, the Genghisid descent played a crucial role in Tatar politics. For instance, Mamai had to exercise his authority through a succession of puppet khans but could not assume the title of khan himself because he lacked Genghisid lineage. The word "Chingisid" derives from the name of the Mongol conqueror Genghis (Chingis) Khan (c. 1162–1227 CE). Genghis and his successors created a vast empire stretching from the Sea of Japan to the Black Sea. The Chingisid principle, or golden lineage, was the rule of inheritance laid down in the (Yassa), the legal code attributed to Genghis Khan. A Chingisid prince was one who could trace direct descent from Genghis Khan in the male line, and who could therefore claim high respect in the Mongol, Turkic and Asiatic world. The Chingisid states were the successor states or Khanates after the Mongol empire broke up following the death of the Genghis Khan's sons and their successors. The term Chingisid people was used to describe the people of Genghis Khan's armies who came in contact with Europeans. It applied primarily the Golden Horde, led by Batu Khan, a grandson of Genghis. Members of the Horde were predominantly Oghuz — Turkic-speaking people rather