Kǒng Yǎn 孔衍 (268–320), zì Shūyuán 舒元, twenty-second-generation descendant of Confucius (the Zhōng-gōng 中宮 line), native of Lǔ-jùn Qūfù 魯郡曲阜. His standard biography stands in Jìn shū 78 (列傳 48). A precocious classicist, recommended young into the Western-Jìn court, he held the offices of zhōng-shū láng 中書郎 and zhuǎn xiào-jūn cān-jūn 校軍參軍 under Sīmǎ Yī and Sīmǎ Ruì. With the Yǒngjiā disaster of 311 he followed Sīmǎ Ruì south to Jiànkāng, where under Yuándì he was made Píng-yuán jì-shǐ and later Zhōng-shū shì-láng. He composed two principal classical-history compendia, the Hàn Wèi chūnqiū 漢魏春秋 in 9 juàn and the Hòu-Hàn shàngshū 後漢尚書 in 6 juàn (both lost, surviving as fragments), and was a leading court ritualist of the early Eastern-Jìn period.
In this corpus he appears as the attributed author of KR1d0097 Xiōnglǐ — a freestanding treatise on the xiōnglǐ (mourning-rite) division of the Wǔlǐ system, preserved in Tōngdiǎn citations and including the sub-treatises Shìmiào cáng zhǔ shì lùn, Jìn zhāo-hún zàng lùn, and Guāilí lùn. No CBDB id assigned in current dump (CBDB pre-Táng coverage is patchy).