Jiǎng Céngyíng 蔣曾瑩 of Sūzhōu 蘇州. The collector whose family-held copy of the Dà Yì cuì yán 大易粹言 (KR1a0041) — the Jiādìng guǐyǒu (1213) 張嗣古 Zhāng Sìgǔ supplement-cutting — served as the Sìkù base-text for that work.