Lǐ Zhèngmín 李正民 (d. 1151), hào Dàyǐn 大隱, Northern–Southern-Sòng official. Sòng shǐ lacks his biography; his career is reconstructed by the Sìkù editors from the memorials in the Dàyǐn jí KR4d0166 and from his own Yǐyǒu hánghǎi jì 已酉航海記 KR2e0019 (already cataloged).
Under Gāozōng he served as Zhōngshū shèrén 中書舍人; was once dispatched to communicate with Empress-Dowager Lóngyòu 隆祐太后 (the principal subject of the Hánghǎi jì). At court he served as Jǐshìzhōng 給事中 and Lǐbù shìláng / Lìbù shìláng 禮部 / 吏部侍郎; in the provinces as prefect of Jízhōu, Yúnzhōu, Hóngzhōu, Wēnzhōu, Wùzhōu, and Huáiníngfǔ 淮寜府 (= Chénzhōu 陳州). Late in life retired with gōngcí (temple-supervisor) honour.
Captured by the Jīn during his Chénzhōu prefecture; freed in Shàoxīng 12 (1142) along with Mèng Yǔ 孟庾 as part of the héyì exchange. Xú Mèngxīn’s Sāncháo běiméng huìbiān KR2c0009 preserves the JīnSòng diplomatic exchange concerning his repatriation. Unlike Mèng Yǔ (who was disowned by Gāozōng for having served the Jīn), Lǐ continued in office after his return — suggesting his Jīn captivity did not involve loss of jié (integrity), though the historical record is silent on the details. His own Nánguī shī in the collection alludes obliquely: lúnshēn juéyù jiǔ kuí gū; tóulǎo guīlái bìnfà shū (drowned-in-the-frontier long isolated and alone; in old age I return, my hair sparse).
CBDB id 19567 has only a deathyear of 1151. Catalog meta gives no dates.