Sū Huì 蘇蕙 (fl. late 4th century, Former Qín 前秦), style Ruòlán 若蘭, native of Wǔgōng 武功 (modern Shǎnxī), is the legendary woman writer credited with the Xuánjī tú 璇璣圖 (or 璿璣圖) — the 840-character brocade palindrome that yields readable verse in three-, four-, five-, six-, and seven-character meters when read in any direction. According to her brief biography in Jìn shū 96, liè nǚ zhuàn 列女傳, her husband Dòu Tāo 竇滔 served Fú Jiān 苻堅 as Qínzhōu cìshǐ and was exiled to the liúshā 流沙 (the desert frontier) for an offense; Sū wove the huíwén 回文 poem to recall him. Lǐ Shàn’s Wén xuǎn commentary on Jiāng Yān’s Bié fù 別賦 preserves a closely related account in which Dòu Tāo took a second wife in exile and Sū’s brocade poem was sent as a reproach. The standard exegetical tradition is preserved through Sòng (Huáng Bósī 黃伯思 Dōngguān yú lùn), Yuán (the monk Qǐzōng 起宗 Dàorén), and Míng (Kāng Wànmín 康萬民) commentaries, the last gathered in KR4b0010 Xuánjī tú shī dú fǎ. The preface to the diagram traditionally attributed to Empress Wǔ Zétiān 武則天 (Rúyì 1 / 692) is regarded by the Sìkù compilers as a forgery, although the diagram itself is authentic Former-Qín material. Sū’s lifedates are not recoverable.