 the duan () was a pre-state tribe of xianbei ethnicity during the era of sixteen kingdoms in china. the reason the tribe adopted the han chinese surname duan is unknown. duan wuwuchen was given in 303 a hereditary title&mdash; the "duke of liaoxi" &mdash;by the jin dynasty. even after their tribe was defeated and absorbed by former yan, the duan clan remained honored and powerful, and several former yan and later yan empresses, as well as important officials, were members of the duan clan. ==chieftains of the duan== {| class="wikitable" |- ! name !! duration of reign |- | colspan=2 | chinese convention: use family name and given name |- | æ¥é¸ç· rÃ¬lÃ¹juÃ n || 250â271 |- | ä¹ç qÇzhÄn || 270-303 |- | æ®µåå¿å¡µ duÃ n wÃ¹wÃ¹chen || 303 â 310 or 311 |- | æ®µç¾é¸ç· duÃ n jÃ­lÃ¹juÃ n || 310 or 311 â 318 |- | æ®µæ¶å¾©è¾° duÃ n shÃ¨fÃ¹chÃ©n || 318 |- | æ®µå¹ç£¾ duÃ n pÇdÄ« || 318â321 |- | æ®µæ«æ¸ duÃ n mÃ²peÄ« || 318â325 |- | æ®µç duÃ n yÃ¡ || 325 |- | æ®µé¼ duÃ n liÃ¡o || 325 or 326 â 338 |} ==see also== *xianbei *list of past chinese ethnic groups *wu hu   
Sixteen_Kingdoms Xianbei