Liǔ Yùn 柳惲 (465–517), zì Wénchàng 文暢, of Hédōng Jiěxiàn 河東解縣 (modern Yùnchéng 運城, Shānxī). Liáng-dynasty senior official, calligrapher, qín-master, and one of the great Go-players of his generation. Native of the great Hédōng Liǔ 河東柳氏 lineage; son of Liǔ Shìlóng 柳世隆 (442–491), the Sòng / Qí senior minister; younger brother of Liǔ Yǎn 柳偃, brother-in-law of Wáng Jiǎn 王儉. The standard biography is Liáng shū 21 (with parallel in Nán shǐ 38).
Held high office under both the Qí and the Liáng. Under Qí he was Yǒngjiā tàishǒu 永嘉太守 and Shàngshū lìbù láng 尚書吏部郎; under Liáng Wǔdì from 502 he served successively as Bǐngshū jiān 秘書監, Wúxīng tàishǒu 吳興太守 (twice), and Yòumín shàngshū 右民尚書. He died in office at Wúxīng aged 53. His sons Liǔ Tiāo 柳偞 and Liǔ Xī 柳僖 continued the family literary and official tradition.
Liǔ Yùn was conspicuously cultivated: the Liáng shū records that he was “marvellous at yì (Go), exceptional at qín (zither), beautiful at calligraphy (shū), and skilled at fēngjiǎo (oratory).” He was a personal favourite of Liáng Wǔdì, who frequently summoned him to play Go and qín. As Go-master, Liǔ Yùn is the recorded compiler of the Qí pǐn 棋品 (KR3h0101) — the Liáng imperial ranking of wéiqí players in nine grades, organising 278 named players. The compilation was carried out under direct imperial order, on the model of Zhōng Róng’s 鍾嶸 Shī pǐn and Yǔ Jiānwú’s 庾肩吾 Shū pǐn — the three pǐn-criticisms forming the San pǐn trio of late-Liáng aesthetic-evaluative discourse.
Liǔ Yùn was also a celebrated lyric poet. His yuèfǔ lyric Jiāngnán qǔ 江南曲 (“Song of Jiāngnán”) — jiāngnán cǎi lián qū 江南采蓮曲 — became one of the most famous yuèfǔ of the Six Dynasties and was widely imitated through the Táng. His collected works (Liǔ Yùn jí 柳惲集 in 12 juàn) are recorded in the Suí shū · Jīngjí zhì but are lost; surviving poems are collected in the Quán Hàn Sānguó Jìn Nánběicháo shī. CBDB returns multiple homonymous entries for the name 柳惲 across different dynasties (the Liáng figure, several Táng figures); no single confident id resolves to the Liáng compiler of the Qí pǐn. Lifedates 465–517 follow the Liáng shū 21.