Board Thread:Speculation House/@comment-24.247.91.107-20140511154823/@comment-24994749-20140724030826

Given Ruby is younger than Yang, the question is:

What happened to Yang mum? Did she die? Did she divorce Mr. Xiao Long? Is Xiao Long Yang's mother name or her father's?

Maybe in Remnant, or at least in the Kingdom of Vale, the rule is for children to carry the maternal surname rather than the paternal like it's normally done in the West of our world.

So, Yang's and Ruby's dad could be named whatever, and his daughters carry the name of each of his wives. Maybe he has two wives and polygamy is perfectly normal in Remnant?

As for Qrow, Ruby says "That's my Uncle Qrow!" but when talking about her father to Yang she just says "Dad", so I think Qrow is Summer's brother.