Indeed, there were quite a lot of people with the word uncle in ancient times. The ancients were very particular about ranking when naming their names. The eldest brother was called uncle, the second child was called Zhong, and the third child to the second to last child were all called uncle.
The youngest ones are called Ji, Zhongni, Shuyuan, etc. He should be the third or third child,
That’s why the parents named them with the character uncle