Fan Li
In the legend, after the fall of Wu, Fan Li (范蠡) 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 later died from drowning in the river.