Jiǎng Shūyú 蔣叔輿 (1162–1223), self-styled Tàishàng Zhífǎxiānshì 太上執法仙士, the principal disciple and editorial heir of the Southern-Sòng court Daoist Liú Yòngguāng 留用光 (see 留用光). His one securely attested literary product is the fifty-seven-juǎn Wúshàng huánglù dàzhāi lìchéng yí KR5b0211 (DZ 508), the most comprehensive Southern-Sòng codification of the Huánglù salvific fast, redacted on the basis of Liú’s transmission. The colophon at juǎn 57 (composed by his two sons Jiǎng Xī 蔣焈 and Jiǎng Yàn 蔣焱) records that the work was twenty years in the making and completed in the seventh month of jiādìng guǐwèi (1223), the year of Jiǎng’s death — the zhèng “成於嘉定癸未上下二十年” leaves no room for doubt on the date. CBDB (id 16166) gives the same lifedates 1162–1223 and identifies him as a Daoist editor in the Liú Yòngguāng lineage. He inherited Liú’s specialism in Yùfǔ wǔléi fǎ and zhèngyī fǎ, and his work explicitly positions the Southern-Sòng Huánglù tradition as the legitimate continuation of the Gě Xuán → Lù Xiūjìng → Dù Guāngtíng lineage. No other works by him are attested; his transmission line continues through his sons (both bearing Daoist names 冲素 and 冲一) and through Guō Yǒuliàng 郭友諒 and Liú’s other lay disciples.