How old was the prince in the twenty-third year of Kangxi?

Emperor Kangxi Michelle Ye (Luo Jin) ascended the throne at the age of seven, and Michelle Ye was twenty-two in the fifteenth year of Kangxi, the beginning of the play (which is also in line with historical facts); The prince (second son) was three years old when he was three years old, and this is roughly the same; Yin Ge, the eldest son, appeared in the year of pacifying San Francisco, that is, the twentieth year of Kangxi, and was shown by the subtitles at the end of each episode. At that time, he was 16 years old (probably in nominal age, but actually 15 years old), while Michelle Ye was 27 years old ~ ~ Therefore, Emperor Kangxi Michelle Ye grew up at 12 years old. In addition, the plot of the 30th episode shows the time when Prince Yin Yong appeared from the 23rd year of Kangxi to the 15th year of Kangxi, when he was three years old. Eight years later, the nominal age was 1 1, but actually it was 10 (at the end of the play, a nine-year-old prince was shown, with some gaps), which was basically consistent with the expression of Hui Fei in the thirty episodes (it is said that Yin Yong was in his early teens); Historically, Yin Ge is two years younger than his brother. For example, Yin Ge, the eldest son in the play, is 5 years old, younger than his father 17 years old. In other words, 17-year-old Michelle Ye gave birth to her eldest son, Yin Ge, which is more reasonable!