Gě Xuán 葛玄 (zì Xiàoxiān 孝先, 164–244, traditional dates), of Jùróng 句容 in Dānyáng 丹陽, the most prominent Daoist saint of the late-Hàn / Three-Kingdoms generation and the great-uncle of Gě Hóng 葛洪 (the Bàopǔzǐ author). Born into an old Lángyé 琅琊 official family that had relocated south, the Gěshì clan supplied magistrates and a Bureau Director (尚書) to the Wú court; according to the hagiographic record Gě received the Tàiqīng alchemical lore from Zuǒ Cí 左慈 (Zuǒ Yuánfàng 左元放) and was himself the recipient of the Sāndòng sìfǔ 三洞四輔 scriptures and registers from the Tàijí Perfected Xú Láilè 徐來勒. He is the eponymous xiāngōng 仙公 of the Língbǎo tradition and is venerated as Tàijí zuǒxiāngōng 太極左仙公 (“Duke-Immortal of the Left of the Supreme Ultimate”) — a title formally affirmed in two Sòng imperial canonisations (Chōngyìng zhēnrén in 1104; Chōngyìng fúyòu zhēnjūn in 1246). The principal alchemical site associated with him is Mt. Géfū 閤皁山 in Jiāngxī, where his “drug-pounding bird” and bubbling jīnshā spring became fixed elements of the cult; subsidiary cult-sites at Mt. Fāng 方山 in Jīnlíng and Mt. Xiǎoyǒudòngtiān 小有洞天 in Xūjiāng 旴江 are also recorded. The principal early sources are Táo Hóngjǐng’s 陶弘景 Wú Tàijí zuǒxiāngōng Gěgōng zhī bēi 吳太極左仙公葛公之碑 (in Huáyáng Táo yǐnjū jí 2.5a–8b, DZ 1050) and the Gě Xuán biographies in Shénxiān zhuàn, Lièxiān zhuàn, Bàopǔzǐ wàipiān, and Zhēn’gào; for the canonical Daoist hagiography see KR5b0134 Tàijí Gě xiāngōng zhuàn. He also figures as alleged compiler / preface-writer in numerous later Língbǎo texts.