Zhèng Diànyī 鄭奠一 (early-to-mid Qiánlóng era, 清), Shèxiàn 歙縣 figure under whose name an early-Qiánlóng pirated edition of 戴天章 Dài Tiānzhāng’s Guǎng wēnyì lùn (KR3eg023) circulated under the false title Wēnyì míngbiàn 瘟疫明辨. The pirated edition was corrected by Dài’s grandson 戴祖啟 Dài Zǔqǐ in Qiánlóng 43 (1778).