Guī Yǒuguāng 歸有光 (1506–1571), zì Xīfǔ 熙甫, hào Zhènchuān 震川, of Kūnshān 崑山 (Sūzhōu, Jiāngsū), was one of the major prose stylists of the late Míng — leader of the TángSòng pài 唐宋派 movement that revived TángSòng gǔwén against the Archaist Front. He was a jìnshì of Jiājìng 44 (1565) — exceptionally late in his career, after eight prior failures in the metropolitan examination — and rose to Tàipúsì chéng (Vice-Chamberlain of the Imperial Stud). He resided most of his life at Āntíng 安亭, on the upper Sōngjiāng, where his direct topographical knowledge of the lower Tàihú-basin drainage informed the SānWú shuǐlì lù (KR2k0067) — the principal late-Míng theoretical statement of the downstream-outlet school of Tàihú hydraulic policy. His prose collection Zhènchuān xiānsheng jí 震川先生集 (Sìkù: KR4) is the principal monument of his literary work; he was also a major commentator on the Confucian Classics, and on the Shǐjì and Hànshū.