Zhào Rǔchéng, zì Míngwēng 明翁, hào Yěgǔ 野谷, was a member of the Sòng imperial clan and a jiānghú poet of Yuánzhōu (modern Yíchūn, Jiāngxī). He took the jìnshì in 1202 (Jiātài 2) under Níngzōng, was appointed to library office (guǎnzhí 館職), and during the Jiādìng era (1208–1224) served on detached duty at Zhènjiāng administering the salt and tea monopolies. He continued to hold offices under Lǐzōng down to his death in 1246. CBDB id 10507 gives lifedates 1172–1246, consistent with these career milestones. His verse, collected as the Yěgǔ shīgǎo KR4d0310 in six juàn, originally circulated with a laudatory preface by Liú Kèzhuāng 劉克莊 (lost from the transmitted text by the Qiánlóng era), and was anthologised in Huáng Yújjì’s 黃虞稷 corpus of twenty-eight Sòng xiǎojí. He is conventionally grouped with Sī Zhí 斯植 as a poet whose strength lies in five-character regulated verse rather than the longer ballad genres.