《旧唐书·列传·卷一百二十七》
杜让能随从僖宗返京，升职为礼部尚书，晋级为银青光禄大夫，封爵为建平县开国子，享有食邑五百户。
从驾还京，加礼部尚书，进阶银青光禄大夫，封建平县开国子，食邑五百户。
Du Rangneng accompanied Emperor Xizong back to the capital and was promoted to Minister of Rites and Silver-green Guanglu Grandmaster, and was enfeoffed as the Founding Duke of Jianping County with a food domain of 500 households.