Many people don't like Concubine De, thinking that he is too partial. Why are his sons treated so differently? However, is this situation caused by Concubine De alone? The first is Kangxi. The fourth elder brother was taken away as soon as he was born. There was no emotional cultivation and consolidation between mother and son. The fourth elder brother once did not know that Concubine De was his biological mother. Secondly, there is the origin of Concubine De. Concubine De was born in a wealthy family. She was once a maid of honor to Queen Xiao Yiren. From the fact that she gave birth to six children in ten years and became the fourth concubine with the lowest background, it can be seen that she was very favored. The maids around her stole the favor of her husband. Would Queen Xiao Yiren have any thoughts in her heart? Brother Si, who didn't know that Concubine De was his biological mother, saw that his mother didn't like Concubine De. Wouldn't a young child hate the people his mother hates because of this?