The most arrogant monarch of the Ming Dynasty: why didn't the king punish him for conspiring to rebel many times, but also rewarded him greatly?

This prince is Zhu Xi, the half-brother of Zhu Di, the ancestor of Ming Dynasty, so he is very tolerant of him. However, after Zhu Yuanzhang proclaimed himself emperor, in order to make his own country more consolidated and spread through the ages, Zhu Yuanzhang reintroduced the enfeoffment system, dividing his 24 sons and one son from the north to the south, and the whole country was the fief of the princes.

however, unlike Zhu Yuanzhang, your princes were pampered from a small place, so they began to be bossy after they got the fief. However, Zhu Xi was even more arrogant and even had the idea of usurping power and seizing power. Zhu Xun was first named King of Wu, and later changed to King of Zhou. Zhu Xun himself was knowledgeable, and he dabbled in vegetation and poetry. Zhu Xi's father-in-law was Feng Sheng, the founding star of the Ming Dynasty. Zhu Yuanzhang was very afraid of this person. When he heard that Zhu Xi had left his fief to talk with Feng Sheng, Zhu Yuanzhang flew into a rage and took Zhu Xi back to the palace, and returned to the fief two years later.

after Zhu Xun returned to the fief, Zhu Yunwen ascended the throne and pursued the policy of reducing vassals, which caused dissatisfaction among many uncles. Zhu Yun began to plot rebellion, but before Zhu Yun could carry it out, he was denounced by his own son. After Emperor Jianwen captured Zhu Xi alive, he kept him under house arrest until three years later, when Zhu Di led the army to rescue the King of Zhou.

after Zhu di ascended the throne, it was a feudal system on the surface, but in fact, he still implemented the policy of reducing vassals. Zhu Yun was very dissatisfied with this and played the role of Gaozu himself on his own fief. This is equivalent to hitting Zhu Di in the face, without paying attention to Ming Chengzu. Later, Zhu Di kept getting news that Zhu Xi wanted to rebel, and finally arrested him, but because he was a younger brother, Zhu Di relented and didn't kill Zhu Xi. After Zhu Xi returned, he quickly handed over his three guards to Zhu Di and finally settled down.