Southern-Sòng nèidān 內丹 commentator, zì Yuānmíng 淵明, hào Wúmíngzǐ 無名子 (“Master Without-a-Name”) and Xiāngchuān wēng 象川翁 (“the Old Man of Xiāngchuān”); a native of Xiāngchuān 象川 in Sìchuān 四川. His preface to the Wùzhēn piān commentary is dated 1173. Wēng is the most influential of the early Southern-Lineage commentators of Zhāng Bóduān 張伯端’s Wùzhēn piān 悟真篇 (1075); his commentary is preserved in three distinct Daozang witnesses — [[KR5a0142|DZ 141 Zǐyáng zhēnrén Wùzhēn piān zhùshū]] (8 juàn, edited by Dài Qǐzōng ca. 1335), [[KR5a0146|DZ 145 Wùzhēn piān zhùshì]] (3 juàn, a separate recension), and the appendix [[KR5a0144|DZ 143 Sānchéng bìyào]] (his programmatic essays on the elixir-art). He is the recipient (according to the WēngChénBóyúnzǐ tradition) of the Lú-family Wùzhēn piān edition transmitted from Liú Yǒngnián 劉永年, and the master of Chén Dálíng 陳達靈, who in turn transmitted to Bóyúnzǐ 白雲子 — a transmission that defines the “象川翁無名子” lineage of Wùzhēn piān exegesis. The “Xuē Dàoguāng” commentary that circulated separately in the Southern Sòng was identified by Dài Qǐzōng (1336) as in fact a recension of Wēng’s work — see DZ 143 for Dài’s philological argument. No CBDB record found.