Of course, Cai Wenji is an exception. She told her that she was born in a scholarly family. Her father is a contemporary writer, and she seems to have no son. She is a talented woman in her own right. Cao's three sisters also have names, but their father and brother are all fierce in troubled times and one of the seven sons of Jian 'an. I am neither a queen nor a married woman. At that time, only families with status and culture like Cai Wenji and Cao Caojia would name their daughters.
And Er Qiao himself is nothing but the daughter of Gong in Jiangdong Bridge and the wife of Zhou Yu in Sun Ce. Gong Qiao is said to be a hero in Jiangdong, and it is estimated that he is also a local tyrant; Not to mention Sun Ce, the whole Beowulf; Zhou Yu is quite famous, but his articles and poems have not been handed down. It is estimated that his literary talent is still good, but he is not a literary giant. He probably won't think about what name to give his wife, and he will probably think about the children.
If you want to know the name of Er Qiao in unofficial history, you might as well make it up yourself.