Jeanne D'arc is the women who chase the english out of France in the Middle Age. This is the lone women in French women to became a knight but she was burned alive for sorcelery because she said she eard God's voice. So this is not realy a myth (not at 100%) but nice picture.
If you want to translate a name... Her name is Jeanne d'Arc. Joan The Ark comes from a strange habit of translating names... And here a failure as Joan isn't for Jeanne but Johan, Jane is indeed the English version of Jeanne. But let's face it...translating name is the most stupid thing to do.
I'm not sure that's entirely true. I read that you can use the name Joan for male and female names. It seems that Joan is more related to the name Johanne which is the female version of Johan. Maybe they were looking for a name that didn't sound as ordinary as Jane. Nevertheless I stick to Jeanne D'arc, because I'm Belgian and always knew her by that name.