Zhū Zhòngfú 朱仲福
Late-Míng calendrical scholar. Author of Zhézhōng lìfǎ 折衷曆法 in 16 juàn (KR3fb009). No CBDB record located, and no entry in standard Míngrén zhuànjì zīliào suǒyǐn 明人傳記資料索引 located. The work itself is the only securely recoverable document of his activity.
The opening polemical preface of KR3fb009 places Zhū squarely in the late-Míng tradition of private practitioners who wrote in defence of the Confucian respectability of tuībù 推步 (computational ephemerides) against the long-standing imperial proscription on private yīnyáng 陰陽 study, and against Ōuyáng Xiū’s 歐陽修 famous Sòng-period claim that calendrical learning had decayed into the hands of mantic specialists. The polemical posture — distinguishing legitimate computation from proscribed prognostication (zhànyàn 占驗), and demanding the throne’s recognition that mathematical astronomy is the canonical responsibility of the literate elite — places the work in the mid-to-late Míng (notBefore c. 1450 / notAfter c. 1620), a bracket consistent with the catalog’s Míng attribution but not further refinable on internal evidence.