Early-Sòng (late-10th / early-11th c.) junior official, of obscure origin and undocumented life. The Sìkù editors record that “his place of origin is unknown.” His self-styling in the SānChǔ Xīnlù 三楚新錄 KR2i0013 — Rúlínláng shìMìshūshěng jiàoshūláng qián Guìzhōu Xiūrén lìng 儒林郎試秘書省校書郎前桂州修仁令 — places him as a junior Sòng-period official: Rúlínláng is a low cí (formal) rank, shìMìshūshěng jiàoshūláng an acting position at the Imperial Library, and qián Guìzhōu Xiūrén lìng the former magistrateship of Xiūrén county in Guìzhōu (modern northeast Guǎngxī). His one surviving work, the SānChǔ Xīnlù, treats the MǎChǔ, Wǔlíng (Zhōu Xíngféng), and Jīngnán (Gāo Jìxīng) regional regimes of the Five Dynasties. CBDB has no entry; lifedates are not recoverable. The floruit range c. 970–1020 is the most defensible from the surviving evidence (early enough to capture local oral tradition, late enough to be a Sòng-period product).