Xiàowéndì bǎ huángzú de xìng cóng Tuòbá gǎichéng le Yuán.
Emperor Xiaowen changed the imperial clan's surname from Tuoba to Yuan.
Tips
history
Part of the 鲜卑 people, the clan reunited north China in 439. The ruling house of the Tangut state 西夏 also claimed Tuoba descent. The name is sometimes written 拓拔.
mistakes
Here 拓 is read tuò, as in 开拓, not tà as in 拓片, an ink rubbing.