Zhū Jiàn 朱鑑 (1190–1258), zì Zǐmíng 子明. Eldest grandson of Zhū Xī 朱熹 (1130–1200, see 朱熹); son of Zhū Xī’s eldest son Zhū Shú 朱塾 (1153–1191, who predeceased Zhū Xī by nine years).
CBDB id 11907 records him without lifedates; catalog gives 1190–1258, followed here.
Career: entered office by yīn 廕 (hereditary-privilege) as Dígōng láng 迪功郎 (Sub-officer of Merit-Service). Rose to HúGuǎng zǒnglǐng 湖廣總領 (Hu-Guang Total Director, a senior fiscal-administrative post coordinating the HúGuǎng circuits’ tax revenues). His career arc benefited from the Lǐ-zōng-period rise of the Zhū school in the yīn-privilege system.
Within the Kanripo corpus he is the compiler of KR1a0056 Wéngōng Yì shuō 文公易說 (also Zhū Wéngōng Yì shuō 朱文公易說) — a 22-juan compilation of Zhū Xī’s Yì-discussions extracted from the Yǔlù and from disciple-and-friend correspondence-debate, gathered to supplement Zhū Xī’s five formal Yì-works. The compilation operates as the Yǔlèi-extracted-and-canonical-passage-organized companion to the Běnyì. The precedent the Sìkù editors invoke is Zhèng Xiǎotóng 鄭小同’s compilation of his grandfather Zhèng Xuán’s disciple-Q&A as the Zhèng zhì 鄭志.
The compilation is one of the principal documentary sources for Zhū Xī’s Yì-thought beyond what is captured in the Běnyì, Yì xué qǐméng, and other formal works.