Táng commentator on the Hànyuàn 翰苑 (KR3k0070) of 張楚金; lifedates not on record and CBDB carries no entry. The KRP / Naitō Konan facsimile of the Dazaifu Tenmangū manuscript carries the colophon-style title-line “Hànyuàn juàn dì [□] Zhāng Chǔjīn zhuàn, Yōng Gōngruì zhù” 翰苑卷第□張楚金撰雍公叡注. The annotations are the principal scholarly contribution of the transmitted text: Yōng Gōngruì supplies dense documentary citations from third- through seventh-century historiography — including Yú Huàn’s 魚豢 Wèilüè 魏略, Wáng Chén’s 王沈 Wèishū 魏書, the Sùshèn guójì 肅慎國記, Lù Huì’s 陸翽 Yèzhōng jì 鄴中記, the Suí Dōngfān fēngsú jì 隋東藩風俗記, and the Kuòdì zhì 括地志 — many of which are otherwise lost or imperfectly preserved, and which can in this work be matched against parallel transmission in the Tàipíng yùlǎn, the Tōngdiǎn, and the Jìnshū. The conventional dating places him in the late seventh or early eighth century (after the composition of the Hànyuàn in 660, before the textual transmission to Japan reflected in the Nihonkoku genzaisho mokuroku 日本國見在書目錄 of the late ninth century); some Japanese scholarship places him as late as the early-mid eighth century. The surname 雍 is uncommon and the personal name 公叡 may be a courtesy form; no other works under his name survive.