Cheng photography

Because of Cheng's high prestige in the people's hearts, he was a great hero who helped him ascend to the throne at that time. At that time, when the Xuanwu Gate was launched, Cheng also made a lot of efforts. Later, Wu Zetian became queen, and other ministers unanimously opposed it, but Cheng did not show his attitude and did not object. After Wu Zetian ascended the throne, Cheng was also resourceful and retired, so Wu Zetian didn't kill him.

Actually, let's talk about Wu Zetian's purpose first. After Wu Zetian ascended the throne, she slaughtered the old ministers of the Tang Dynasty because they did not support her to ascend the throne. If we let them continue to live in this world, maybe one day they will do a little moth to Wu Zetian. Such old ministers are generally stubborn. They will only find a master all their lives, so that they can betray their former king and take refuge in Wu Zetian. It is difficult to do it either by coercion or by money status.

Even if one or two people took refuge in her, Wu Zetian couldn't believe it at all. If one day, they will put a knife rest around her neck, then the risk is too great. The easiest way is to kill them all directly, but Cheng did not pose a threat to Wu Zetian. He didn't obviously want to resist Wu Zetian's attitude, and it was not wrong for the court to let Wu Zetian kill him.

Most importantly, Cheng is a man who can assess the situation, and his emotional intelligence is far higher than that of ordinary people. When Cheng made his last appearance, Cheng unexpectedly failed. He knew that the imperial court could not intervene by itself, and his former master had long since gone, so there was no need to stay here, so he volunteered to leave the imperial court, which was probably the reason why Wu Zetian put down his guard.