Zhèng Xuàn 鄭炫 (fl. Wànlì), great-grandson of Zhèng Yuè (鄭岳) of Pútián. Editor of the Shānzhāi wénjí in 24 juǎn (KR4e0151), which he recovered and re-printed in Wànlì from the fire-damaged remains of his ancestor’s writings.