Gù Yuánzǎi 顧元宰 (fl. early 18th c.) — biological son of Xīhóu gōng 西侯公 (middle brother of 顧靖遠 Gù Sōngyuán), adopted by Sōngyuán at age ten when the latter was without natural heirs. Carried his adoptive father’s manuscript of the Gù Sōngyuán yī jìng 顧松園醫鏡 (KR3er076) into print at Kāngxī 58 / 1719 with an autobiographical postface. Not in CBDB.