Board Thread:Speculation House/@comment-206.248.160.84-20160222060332/@comment-4010415-20160226214830

136.224.90.232 wrote: Some people have speculated that Qrow could actually be Ruby real biological father. Not sure how much stock to put into other than it could have been possible without TaiYang nowing. Regarless this theory could go along with it.

-Defcon Deceiver And various wiki users have discussed this already and said that no, do not put any stock into the "Qrow is Ruby's real biological father" theory.

Monty, Miles, and Kerry have never intentionally lied to us. They teased us (especially Monty), yes, but never lied. When they didn't want to tell us something because it'd be a spoiler, they found a way around it. Either they didn't give us an answer, they didn't give us a straight answer, or they gave us a joke answer.

Monty outright said that Ruby and Yang are half-sisters, even though the question was "Is Yang actually Summer Rose, and she faked her death and changed her name?" His answer was that Summer Rose is Ruby's mother and that Ruby and Yang are half-sisters. He literally did not need to tell us that they're half-sisters, but he did. I'm pretty damn sure he was telling the truth.

Ruby and Yang share a biological father: Taiyang.