Who is King Min Heng?

In Zhu Ming's generation, three imperial princes were assigned to Qingzhou. One is Wang Yan, the seventh son of Zhu Yuanzhang, the seventh emperor of the Ming Dynasty. It was sealed in Hongwu for three years and became a country in Hongwu for fifteen years. In the first year of his construction, he thought conspiracy was a bad idea and gave it up as Shu Ren. In the first year of Yongle, the imperial edict restored his country, but in the fifth year of Yongle it was abolished because of arrogance and illegality. In the third year, Xuande died and later lived in Nanjing. Li Wenzao, a Qingzhou scholar in Qing Dynasty, once wrote Fan Qi Ji, which has been lost. Secondly, Zhu, the second son of Ming Chengzu, was blocked in the second year of Yongle, which made his native Yunnan covet the East Palace and refused to go to the country on the grounds of remoteness. In the 13th year of Yongle, Qingzhou was renamed, and Prince Mi built the Prince's Mansion, but it was illegal to delay the construction. In the fifteenth year of Yongle, he moved to Le 'an House. In August of the first year of Xuande, he was arrested in Beijing for complicity and died in the west. Hengwang was the last baron in Ming Dynasty and feudal society. In the twenty-third year of Chenghua, Zhu Youkun, the seventh son of Ming Xianzong, was made the King of Heng. In March of the twelfth year of Hongzhi, he was sent to Qingzhou and passed on to the seven kings of the Sixth World: Zhu Youkun, Zhu Houxie, Kang Zaigui, Zhu Zaigui's younger brother, and Zhu's son. * * * before and after more than one hundred and forty years. The Qing army entered the customs, and the last king Zhu was cleared by the Qing army. In May of the third year of Shunzhi, the Qing court executed him and eleven Ming royalty including Zhu Yousong, Zhu Changfang and Lu Wang who were captured on charges of possession of gold and silver seals and attempted rebellion, and the Hengwangfu was confiscated.