Although successive dynasties had paid tribute to the Chinese Emperors for generations, the Vietnamese emperors were unwilling to be treated as a vassal by disclosing their real names to other countries.
歴代王朝は代々中国皇帝に朝貢をしていたが、一方で皇帝がその諱（本名）を他国に知られてその臣下扱いされることを潔しとしなかった。