Wú Jūn 吳均 (469–520), zì Shūxiáng 叔庠, of Wúxīng Gùzhāng 吳興故鄣 (modern Ānjí 安吉, Zhèjiāng), was a leading Liáng 梁 prose-stylist, scholar-historian, and minor official; his standard biography is Liáng shū 49. Of humble origins (“chūshēn hánjiàn 出身寒賤”), he came to the attention of the rising Xiāo 蕭 family of Lánlíng 蘭陵 in the late Qí 齊 / early Liáng transition and was made a personal aide and literary functionary of Xiāo Wěi 蕭偉 (the Liáng Prince of Jiànān 建安王). His historical scholarship led him to undertake, on his own initiative, a thirty-juàn annalistic history of the Qí — the Qí Chūnqiū 齊春秋 — which presented Liáng’s predecessors so unflatteringly that Emperor Wǔ 武 of the Liáng (Xiāo Yǎn 蕭衍) ordered it burned and Wú dismissed from office. Reinstated, he was placed by imperial order on the team compiling the Tōngshǐ 通史, in which connection he is credited with having drafted the section dealing with the Hàn shū. He died in Pǔtōng 1 (520) at the age of 52.
Wú is the canonical exemplar of the so-called Wú Jūn tǐ 吳均體 — a tight, compact piánwén manner of scenic letter-writing whose locus classicus is his Yǔ Sòng Yuánsī shū 與宋元思書 (“Letter to Sòng Yuánsī”) describing the Fùchūn 富春 river-scenery between Tónglú and Jiàndé. He was also a prolific yuèfǔ 樂府 poet (the “Hújiā shíbā pāi” 胡笳十八拍 attributed to him is now generally rejected as later forgery, but the genuine yuèfǔ corpus is substantial), and the author of the Xù Qíxié jì 續齊諧記 KR3l0102 — the small but extraordinarily influential Liáng zhìguài anthology whose Tián Zhēn 田真 zǐjīng 紫荊, Yáng Bǎo 楊寶 yellow-sparrow, and Huán Jǐng 桓景 Double-Ninth tales entered the permanent literary repertoire. The Liángshū biography notes his other lost works — Miào jì 廟記 (10 juàn), Shí èr zhōu jì 十二州記 (16 juàn), and a Wén jí 文集 (20 juàn) — of which only fragments survive. CBDB id 439100 records his dates 469–520 (other 吳均 entries in CBDB are Sòng-era homonyms).