Zhāng Zhēn 張楨 (fl. early 16th c.), youngest son (jìzǐ) of Zhāng Yǔ 張羽 (1467–?, zì Fèngjǔ, of Fèngxīn) (張羽) — editor of his father’s Dōngtián yígǎo in 2 juǎn (KR4e0154). The preface to the recension was contributed by his father’s disciple Chǔ Xún 儲洵.