Southern-Sòng xiǎoxué scholar, zì Zhèngjǐ 正己, hào Zǐyún shānmín 紫雲山民. fl. Lǐzōng era — known principally for two related rhyme-book projects of Jǐngdìng jiǎzǐ (1264). (1) The Zēngxiū jiàozhèng yāyùn shìyí KR1j0062 — a re-augmentation of Ōuyáng Délóng’s 歐陽德隆 Yāyùn shìyí of Shàodìng (1230), each juàn of which Guō added c. 1,000 biànzhèng corrections; this work alone is referred to in YuánMíng sources as Zǐyún yùn 紫雲韻 (after his hào) and is principally known through Yǒnglè dàdiǎn citations. (2) An independent rhyme-book also titled Zǐyún yùn, separately catalogued in the Sìkù. The Sìkù tíyào notes that the printed Lǐbù yùnlüè recensions later became conflated and that some prefaces and tiáolì were borrowed across editions. No CBDB entry.