Lǐ Héng 李衡 (1100–1178), zì Yànpíng 彦平, hào Lèān 樂庵, of Jiāngdū 江都 (modern Yángzhōu) — later resident in Kūnshān 崑山 (Sūzhōu) after his daughter’s marriage into the family of 陳襄’s descendant 陳尊. Jìnshì of 1132 (Shàoxīng 2). His official career under Gāozōng and Xiàozōng included posts in the Censorate and Remonstrance Bureau and a Wùzhōu 婺州 governorship; his most senior recorded post was Mìgé xiūzhuàn 秘閣修撰 (Compiler of the Secret Pavilion) in the Qiándào 乾道 era, with subsequent transfer to Censor (yùshǐ 御史) and Qǐjū láng 起居郎 (Diarist of the Imperial Audience). His father Lǐ Yú 李虞 served as Superintendent of horse procurement in Guǎngxī (1133–1134).
Biography in Sòngshǐ; sources include Jiànyán yǐ lái xìnián yàolù 70.8b and 78.12b, Sūzhōu fǔzhì 139.22a, Wéiyáng zhì (1542) 22.2a–3b, and the Yǒnglè dàdiǎn references at 2368.6a, 10422.7a–10a. CBDB id 7276.
Within the Kanripo corpus he is the redactor of KR1a0034 Zhōuyì yì hǎi cuō yào — his twelve-juan condensation of Fáng Shěnquán’s lost Zhōuyì yì hǎi, completed Shàoxīng 30 (1160) and printed Qiándào 6 (1170). He is also the source of KR3j0020 Lèān yǔlù 樂菴語錄 (5 juan), recorded by his disciple 龔昱 (Gōng Yù) over six years’ study and compiled after Lǐ Héng’s death; the Lèān yǔlù preserves his lectures on the Lúnyǔ-centered Lǐxué he received via Zhào Xiàosūn 趙孝孫 from Chéng Yí. He is additionally recorded as author of a ZhōuLǐ Zhōngyōng jiě 周禮中庸解, no longer extant.