Which sworn brother of Zhang was assassinated by him?

Zhang has a sworn brother named Du, who is a very powerful bandit leader. Later, after Zhang was summoned to An, he was assigned a task, that is, to get rid of Du, so Zhang hosted a banquet for Du at Hongmen and assassinated his sworn brother Du.

Zhang is a very famous warlord. But he was born in Greenwood in his early years, so he has some Jianghu habits. As the saying goes, there are many friends and many roads. In the past, outlaws liked to become sworn brothers whenever they had time, and Zhang was no exception. They not only like to become sworn brothers, but also like to recognize their parents. Zhang has a sworn brother named Du, who is a very powerful man. At that time, Zhang was not very powerful, so he and Du became sworn brothers, and everyone helped each other together. Du is a ruthless man, and his marksmanship is also very accurate, and his tricks are also very special. Whoever can crack eggs can stay with Du, so Du's team is all elite.

In addition, Du was a very clever man, and soon Du became the boss of western Liaoning, thus becoming the most wanted man of the government. At that time, the Governor of Northeast China was named Xu Shichang. He has been trying to get rid of Du's snobbery, but it is difficult. Later, he thought of a way to put Zhang in first and let Zhang deal with Du.

Zhang is also very clever. He knows that Du is not easy to mess with, and Du's marksmanship is so accurate, so it is impossible to play hardball. He can only start from other aspects. He thought of using the hongmen banquet and invited du xian to talk about it. Du was worried that it was a conspiracy, so he put it off. Later, Zhang invited his uncle Du to come forward. Finally, Du finally went to dinner with Zhang, and his goal was achieved. After dinner, Du was subdued and stabbed to death by Zhang's men.