Board Thread:Speculation House/@comment-68.186.83.101-20130601225528/@comment-27399559-20151218160557

Guys, the only thing we know about names in Remnant is that they are named after colors since after the war, and that they have more than a given name.

So how 'bout this : They are related, but names in Remnant are inherited from the MOTHER (haven't seen sexism so far, so it's safe to assume traditions aren't sexist either), but given how much was known about Raven, her running away and Yang's similarity to Taiyang (AND them both being named after the sun), perhaps he found it more plausible to name Yang after himself.

Another one : Yang doesn't know her mother, and even HAD to be told about her. Makes sense she has the same name as her father, otherwise she would have suspected something, she was smart as a child (not saying she isn't).