The cause of death is bizarre. How did Mei from history of qing dynasty die in the end?

The eighth brother, Yun, is the best and most talented of the Yongzheng brothers. However, "the abolition of the Crown Prince was also allowed to succeed, and Sejong deeply regretted it." After Yongzheng ascended the throne, Yun and his followers were regarded as a thorn in the side and a thorn in the flesh. Allow the in the mind also know that often disgruntled. Yongzheng succeeded to the throne and played a two-faced game: first he was crowned prince-his Fujin said to those who came to congratulate him, "What's the purpose?" I can't help worrying about the leader! When this word reached Yongzheng, he ordered Fujin to be sent back to her family. "。 Soon, I was ordered to kneel in front of the ancestral temple for a day and a night. Later, he was ordered to behead the baron, was banned by the high wall, and changed his name to "Aquinas". Scholars have different interpretations of the word "Achina", which used to mean "pig", but recently some scholars have interpreted it as "shameless". I was imprisoned for many years, tortured and finally killed.