Duanmu Ci

[2] Duanmu Ci (Zigong) was a native of the State of Wey, born in present day Xun County.

"[4] According to Zhu Xi, Zigong was a merchant who later became wealthy through his own efforts, and developed a sense of moral self-composure through the course of his work.

[4] According to Sima Qian's Records of the Grand Historian, Duanmu Ci later served as prime minister for both the states of Lu and Wey, but this account could not be confirmed with other ancient chronicles.

I suggest you attack the state of Wu (吴) instead, who has strong army and impenetrable fortress, military leaders will be defeated and yielding more power to you."

Tian Chang loved the idea, but struggled to find excuses to shift target, hence Zigong promised to persuade the King of Wu to attack Qi instead.

Fuchai (夫差), King of Wu was belligerent and aspired a victory over powerful Qi, but he was concerned that the neighboring state of Yue (越) might be planning a revenge against him for a previous disgraceful defeat.

Goujian thought this is the best advice, and gifted Fuchai with fine armors and well trained soldiers, and even offered to help the battle personally.

[4] During the Tang dynasty, Emperor Xuanzong posthumously awarded Duanmu Ci the nobility title of Marquis of Li (黎侯).