《资治通鉴·唐纪·唐纪五十九》
已丑，唐穆宗任命中书侍郎、同平章事杜元颖兼同平章的荣誉职务，充任剑南西川节度使。
己丑，以中书侍郎、同平章事杜元颖同平章事，充西川节度使。
On the day of yi chou, Emperor Muzong of the Tang dynasty appointed secretary to the imperial secretariat and former minister of rites Du Yuanjing to hold the concurrent honorary post of minister of rites and to double as governor of Xichuan in Jiannan.