《资治通鉴·唐纪·唐纪六十六》
冬季，十月，唐懿宗任命御史大夫郑涯为山南东道节度使；十一月，又加郑涯同平章事衔，为使相。
冬，十月，以御史大夫郑涯为山南东道节度使。十一月，加同平章事。
In the tenth month of winter, Tang Yizong appointed Zheng Ya, the Minister of the Censorate, as the Military Governor of the Shannan East Circuit. In the eleventh month, he bestowed on Zheng Ya the additional rank of Tongpingzhangshi, making him a chancellor.