How many years did martel Ruoxi span?

In Marteiroche's book, Ruoxi crossed the forty-third year of Kangxi. The book says that Ruoxi crossed the past in the forty-third year of Kangxi. Historically, the May 4th Movement was born in Kangxi 17. Mei Sheng was born in the twentieth year of Kangxi. Ten elder brothers Kangxi was born in 22 years. Brother XIII was born in the twenty-fifth year of Kangxi. Fourteen elder brother was born in the twenty-seventh year of Kangxi.