Кидани
The Yelü clan (or Yarud clan; Khitan: , spelled "ei.ra.ú.ud", pronounced "Yarüd"; ) of the Khitan people assumed leadership of the Khitan state in 907 when Abaoji became khan of the Khitan people and maintained that leadership through the fall of the Liao dynasty in the 1120s. Even following this fall, members of the clan appear in history, most notably during the Mongols era of conquest in the thirteenth century.