Putative Táng author of KR3h0011 Mò sǒu 墨藪, a two-juàn compendium of calligraphic literature. The attribution is found only on late editions; the Tángshū·Yìwénzhì does not record the work, and the Sòng catalogues of Cháo Gōngwǔ and Chén Zhènsūn give it as anonymous. The Sìkù editors flag the attribution as uncertain, noting that the book itself records material as late as the Kāichéng 開成 (836) affair of Liǔ Gōngquán 柳公權, so its compiler must be a post-Kāichéng hand. Nothing else of him is known.