Southern-Sòng physician of Yǒngjiā 永嘉 (Wēnzhōu). Zì Zhèngqīng 政卿, hào Guìtáng 桂堂. He turned to medicine in middle age after abandoning the examination track. Author of Chá bìng zhǐ nán 察病指南 (KR3eb002, 1241), an early illustrated pulse manual with thirty-three pulse-image diagrams; also of a lost Xù yì jiǎn fāng 續易簡方 and a Běn cǎo biàn yì 本草辨異. Lifedates 1190–1268 are conventional, derived from his own preface dating; no CBDB record.