Claire Hummel, an American artist with a love for Disney princesses has made an awesome effort to deliver historically correct princesses. The outcome is pretty impressive, as you can see below.
Tiana (The Princess and the Frog)
Snow White (Snow White and the 7 Dwarfs)
Aurora (Sleeping Beauty)
Ariel (The Little Mermaid)
Belle (Beauty and the Beast)
Not a princess… yet really cool: Maleficent (Sleeping Beauty)