Joan of Arc

Joan of Arc fought in the Hundred Years War and brought victory to the French over British forces.  She said that God had told her to lead the French troops to their conquest; it was unheard of for a woman to be a warrior, let alone lead men into battle.  She wore the same clothes and armor as men and, after some time, she was burned at the stake for heresy.
But...could it be possible that there were higher powers in government that feared her growing power?  A woman did not lead men in anything in the fourteenth century.  It wouldn't be implausible to consider the possibility that someone wanted nothing more to silence Joan of Arc because of her growing power as a woman