Early-Qīng calligrapher and palaeographer of Chángzhōu 長洲 (modern Sūzhōu, Jiāngsū), hào Nányuán 南原, fl. Kāngxī era. His one major published work is the Lì biàn KR1j0052 of Kāngxī 57 (1718), a dictionary of Hàn clerical-script (lìshū 隸書) graphs collected and traced from stone inscriptions, arranged by 540 Shuōwén radicals and using the Lǐbù yùnlüè rhyme-sequence within each radical. The Sìkù tíyào credits the work — the most extensive printed dictionary of Han clerical-script forms before the modern era — but criticises Gù for over-dependence on Lóu Jī’s Hànlì zìyuán and for failing to verify many of the citations against the original carvings. CBDB carries one entry (#565150) with no firm lifedates; no other biographical detail survives.