Xǔ Yáochén 許堯臣

Southern-Sòng medical scholar of Sānshān 三山. Known from Yè Dàlián’s 1186 postface to the Yèshì lùyàn fāng (KR3ed130) as one of the two collators (alongside Liú Liángshū of Shòuchūn) of the family-transmitted formulary, prepared for the Lóngshū jùnzhāi woodblock printing.