Board Thread:News and Announcements/@comment-25148498-20141031183601/@comment-4010415-20151116031132

Thekingofkeys wrote: but as earlier mentioned, qrow's last name is not confirmed so they could or could not have a connection, if they do happen to have the same last name, raven could be their aunt? or yang's mom that also "went missing" but came back in season 2 briefly to kick neo's ass and save yang's life on that train, this may seem very vague and is missing some key parts to it, but it all makes sense if your still following what im saying, Qrow's last name is confirmed now, as of the episode New Challengers. In the credits, he's listed as Qrow Branwen.

And Yang said that Summer, Qrow, Taiyang, and her real mother were on a team together. Considering that the photos hows Summer, Qrow, Taiyang, and Raven, I think it's obvious that Raven is Yang's real mother.