Fuchai (reigned 495–473BC), sometimes also written Fucha, was the last king of the state of Wu during the Spring and Autumn Period of Chinese history. His armies constructed important canals linking the Yellow, Ji, and Huai River systems of the North China Plain with central China's Yangtze River, but he is most remembered in Chinese culture for the role he played in the legends concerning Goujian, the revenge-seeking king of Yue. Life Fuchai was the son of King Helü. He became king in 495 BC, following the death of his father from injuries sustained during an invasion of Yue. In 494BC, Goujian, the king of Yue, heard rumours that Fuchai was planning to attack him in order to avenge the death of his father. Goujian's minister Fan Li advised caution, but Goujian decided on a pre-emptive strike. Fuchai in turn heard rumours of Goujian's plans and sent his army against Yue. The forces met at Fujiao where Wu won a complete victory, with only 5,000 Yue men surviving. These men fell back to Mount Kuaiji, with the Wu army occupying Kuaiji (now Shaoxing, Zhejiang) and then surrounding the mountain. At Fan Li's suggestion, Goujian sent Wen Zhong to bribe the Wu chancellor, Bo Pi, in order to obtain more favourable terms. Bo accepted the gifts and promised to help Goujian's case. Because Fuchai had been more anxious to expand northward against Qi, he accepted Bo's advice to make a favourable peace with Yue rather than engage in the lengthy pacification campaign that would have been necessary to annex the state of Yue to Wu. After Fuchai withdrew his men from Yue, Goujian took his wife and Fan Li to the Wu court to serve his opponent. His hard work on Fuchai's behalf earned him the king's trust and favour, and Goujian was permitted to return to his kingdom after three years. In 486BC, Fuchai's men built the Hangou Canal (t s Hángōu) to connect the Yangtze River with the Huai and, via the existing Honggou Canal (t s Hónggōu, "Canal of the Wild Geese"), with the Yellow River beyond. This eased their supply lines during Fuchai's war with Qi, which was concluded successfully at the Battle of Ailing. During 483 and 482BC, Fuchai's men built the Heshui Canal (t s Héshuǐ Yùnhé) connecting the Si River, a tributary of the Huai, with the Ji, which ran parallel to the Yellow