Zheng Yuqing (鄭餘慶) (746 – January 2, 821), courtesy name Juye (居業), formally Duke Zhen of Yingyang (滎陽貞公), was an official of the Chinese dynasty Tang Dynasty, serving as a chancellor during the reigns of Emperor Dezong and Emperor Dezong's grandson Emperor Xianzong.
Read more about Zheng Yuqing: Background, During Emperor Dezong's Reign, During Emperor Shunzong's, Emperor Xianzong's, and Emperor Muzong's Reigns