Xiāo Hànzhōng 蕭漢中, zì Jǐngyuán 景元, was a Yuán-dynasty Yìxué scholar from Tàihé 泰和 (Jí’ān 吉安, Jiāngxī 江西), active in the Tàidìng 泰定 reign-period (1324–1328); CBDB places his attested activity at 1325. His one transmitted work, the Dú Yì kǎoyuán 讀易考原 (KR1a0083), is a short three-part treatise on the structure of the Yìjīng: the partition of the hexagrams between the upper and lower scriptural sections, their pairing, and their canonical order.
The work was little circulated in its own right; it was preserved through the early Míng Zhōuyì pángzhù 周易旁注 of Zhū Shēng 朱升 (1299–1370), who appended Xiāo’s text to the back of his own commentary, condensing the substance into two diagrams (one for the upper scripture and one for the lower) cut to stone, with the original Xiāo text printed beneath. After Zhū Shēng’s own work was damaged, Xiāo’s text — paradoxically — survived in better condition than the host work that had carried it. The Sìkù editors extracted Xiāo’s text from a copy of the Pángzhù and re-issued it independently. Zhū Yízūn’s Jīngyì kǎo 經義考 listed it in three juàn, but as the Sìkù editors note, this simply reflects taking each of the three sections (treatises) as one juàn; there is no separate three-juàn recension.
Xiāo’s broader doctrinal stance follows Shào Yōng’s 邵雍 xiàntiān 先天 numerology, but he applies it tightly to canonical Yì problems (the partitioning of hexagrams across the two scriptural halves, the Xùguà sequence) rather than to free-standing speculation, which the Sìkù editors regard as a virtue.