The sixth son of Emperor Kangxi. He was born on the fifth day of February in the nineteenth year of Kangxi (1680). He died on May 14, the twenty-fourth year of Kangxi, when he was six years old. Mother, Queen Xiaogongren (namely De Fei Wuya). On October 13, the 18th year of the lunar calendar, Wu Ya was registered as a concubine. Although his eldest son and the fourth son of the emperor, Yinzhen, was about to turn one year old at this time, judging from the birth date of his second son, Yinzuo, Wu Ya was already six months pregnant with Yinzuo. So it can be guessed that the reason why she was registered as a concubine was not only because of Yinzhen, but also because of the six-month-old flesh and blood in her belly at that time, Yinzao. On December 20, 2009, when Yinzhen was three years old and Yinzuo was one year and ten months old, De Concubine was promoted to De Concubine.