King Goujian of Yue was once imprisoned by King Fuchai of Wu after a defeat in war, and Yue later became a tributary state to Wu. Secretly planning his revenge, Goujian's minister Wen Zhong suggested training beautiful women and offering them to Fuchai as a tribute (knowing Fuchai could not resist beautiful women). His other minister, Fan Li, found Xi Shi and Zheng Dan, and gifted them to Fuchai in 490 BC. Bewitched by the beauty and kindness of Xi Shi and Zheng Dan, Fuchai forgot all about his state affairs and at their instigation, killed his best advisor, the great general Wu Zixu. Fuchai even built Guanwa Palace (Palace of Beautiful Women) in an imperial park on the slope of Lingyan Hill, about 15 kilometres (9.3 mi) west of Suzhou. The strength of Wu dwindled, and in 473 BC Goujian launched his strike and put the Wu army to full rout. King Fuchai lamented that he should have listened to Wu Zixu, and then committed suicide. In the legend, after the fall of Wu, Fan Li retired from his ministerial post and lived with Xi Shi on a fishing boat, roaming like fairies in the misty wilderness of Taihu Lake, and no one saw them ever again. This is according to Yuan Kang's Yue Jueshu (越绝书). Another version, according to Mozi, is that Xi Shi eventually died from drowning in the river.