Obviously, she won't stay virgin for very long.
Unless she threatens Charles with the wrath of God if he tried anything funny in bed...![]()
Charles VII wouldn't have married Joan of Arc because they were siblings. Everyone knows she actually was the illegitimate daughter of Louis of Orléans and Isabeau of Bavaria:
http://en.wikipedia.org/wiki/Alternative_historical_interpretations_of_Joan_of_Arc
Plus, she was a man in disguise, so she actually was Charles VII's brother![]()