How did May die?

May died of her own disease, which had nothing to do with Yong Zhengdi.

The fifth son of Emperor Kangxi of the Qing Dynasty, Yong Zhengdi's half-brother, was not born on the fourth day of December in the eighteenth year of Kangxi (AD 1679), so it is appropriate to marry Guo Luoluo. In the thirty-fifth year of Kangxi (A.D. 1696), he conquered Galdin with his father and was ordered to command the camp of Zhenghuang Banner. In the thirty-seventh year of Kangxi (A.D. 1698), he was awarded the title of Dolobelle in March. In the forty-eighth year of Kangxi (AD 1709), in March, he was promoted to Prince Heshuo, given Prince Heng, and given 5000 taels of silver. Zi Hong was promoted to Prince. Kangxi commented that this son is very kind and honest.

Yin Qi did not form a political party, nor did it fight for storage. After Yongzheng ascended the throne, he used this as an excuse to cut his son's title.

In the tenth year of Yongzheng (AD 1732), Renzi was ugly and died on May 19th. At the age of fifty, I was four years old and gave him a funeral, which was very warm. In the twelfth year of Yongzheng (A.D. 1734), a monument was erected, which was called "Natural Peace", humble and sincere, and quite cheerful.