sì​dà​měi​nǚ

the four legendary beauties of ancient China, namely: Xishi 西施[Xī​shī], Wang Zhaojun 王昭君[Wáng​Zhāo​jūn], Diaochan 貂蟬|貂蝉[Diāo​Chán] and Yang Yuhuan 楊玉環|杨玉环[Yáng​Yù​huán]