Whose sons are Jia Qin and Jia Yun in A Dream of Red Mansions? thank you

Jia Yun is Jia's sideline. He lost his father when he was a child, and his mother was "the fifth sister-in-law who lived in the back porch". They scraped by on an acre of land and two houses. Later he recognized Jia Baoyu as his father.

Jia Qin, a distant descendant of Jia's cursive script generation, is called "three rooms and four sons". Mom Zhou.