Board Thread:Speculation House/@comment-9058532-20130807182204/@comment-37.146.179.140-20140510091126

It is obvious that Summer is their mother, because they share same emblem, and she partly resembles ruby. Moreover Ruby's endurance may stem from her genetical trait inhereted from Summer. And personally, I have a theory that Qrow, Summer and Ruby share sciff style of their ancestors. It is only hypothesis, however in the first episode Ruby mentions that Qrow tutored her in fighting.