Diaochan is the 'moon-hiding' beauty of
闭月羞花: the trope says even the moon hid behind a cloud when she looked up. She is probably fictional — unlike the other three beauties she has no confirmed historical record — but appears in 《
三国演义》 as minister Wang Yun's ward, used in a 'chained beauty trap' (
连环计) to break Dong Zhuo and Lü Bu.