Khitan people
Qi (奇, also commonly written as Ji or Ci in mandarin, Kei in Cantonese) is Chinese surname. during the Qing Dynasty, Khitan people Cideri (奇德哩), Cidumu (奇杜穆), Cileng (奇楞), Cimosi (奇墨斯), Citela (奇塔喇), Cilei (奇壘) reduce surname Qi (奇). during the Qing Dynasty, Jurchen the Du (surname) (杜) family Chenge surname to Qi (奇).