 In 548, Yuwen and Yuan Qin were on a grand tour of the provinces when Emperor Wen grew ill, and when they heard the news, Yuwen returned to Chang'an quickly, although by the time they returned, Emperor Wen had recovered.In 549, Emperor Wen issued an edict—probably as Yuwen requested—ordering that the names of the ethnic Xianbei, changed to Han names during the reign of Emperor Xiaowen, be changed back to the original Xianbei names.In 550, Gao Huan's son Gao Yang forced Eastern Wei's Emperor Xiaojing to yield the throne to him, ending Eastern Wei and starting Northern Qi (as its Emperor Wenxuan).