What is the purpose of Zhou Wenwang's killing Jiang Ziya's descendants?

Zhou Wenwang killed his descendants for fear of Jiang Ziya usurping the throne.

After Jiang Ziya's death, the influence of the Chiang family has become a threat. Zhou Wang believes that if the Chiang family is allowed to continue to grow and develop, its own throne will one day become the Chiang family's bag.

So the king of Zhou, at the suggestion of others, made a plan to weaken the influence of the Chiang family. The first to suffer was Jiang Ziya's youngest son, whose fief was the weakest state of Zheng. Zhou Wang made an excuse casually, regained the fief and executed his youngest son.

In addition, the king of Zhou tried several ways to drive all the Chiang family's children and grandchildren out of the power group, and even cooked and killed the king of Qi in public in front of all the governors in the country. From then on, Zhou Wang completely let go of his hands and feet and persecuted the descendants of Jiang Ziya one by one.

Development:

Jiang Ziya was very old when he came out of the mountain. Although he was brilliant, he was criticized by many people. According to historical records, Jiang Ziya's energy in the Second World War against Merchants was far less than before, even to the point where he couldn't take on a big responsibility at all.

At this time, Jiang Ziya wanted Zhou Wang to recommend his son Jiang Ji, hoping that his son could take over the baton in his hand and help him achieve great things. Jiang Ji is also a talented person. As soon as he came out of the mountain, he was appreciated by the rulers of Zhou Dynasty, and even put down the rebellion in Wu Geng. After that, the position of the Chiang family was greatly consolidated in the Zhou Dynasty.