Qián Wénzǐ 錢文子 (fl. c. 1190–1215), courtesy name Wénjì 文季, hào Báishí shānrén 白石山人 (“Mountain-man of White Stone”), was a Southern Sòng classicist and historian of Yuèqīng 樂清 (modern Wēnzhōu, Zhèjiāng). He took the shàngshè shìhè 上舍釋褐 — graduation from the highest grade of the imperial academy — in the third year of Shàoxī (1192) and held office successively as Lìbù yuánwàiláng 吏部員外郎 (Vice-Director of the Bureau of Personnel) concurrently with Guóshǐyuàn biānxiūguān 國史院編修官 (Editor of the National History Bureau), and then Zōngzhèng shàoqīng 宗正少卿 (Vice-Director of the Court of the Imperial Clan). According to the CBDB activity table he was demoted in office (chéngdū yùnpàn) in 1209. He retired to the foot of Báishí 白石 (“White Stone”) Mountain near his native Yuèqīng and styled himself accordingly. His disciple Chén Yuáncuì 陳元粹 supplies a 1214 preface to his only surviving major work, KR2m0051 Bǔ Hàn bīngzhì 補漢兵志, the principal Sòng reconstruction of the Western-Hàn military system. He was a member of the Yǒngjiā 永嘉 utilitarian school’s wider intellectual circle. His CBDB record (16223) gives no firm birth or death year; the index year is 1134, and the catalog meta of the Sìkù quánshū assigns him the bracket “fl. 1160 – 1215”, which the Shàoxī graduation and Jiādìng preface make plausible.