From magxone.com: Princess Charlotte Casiraghi is the royal beauty photographed by Mario Testino for the cover shoot of the fashion magazine Vogue France for the September 2011 issue.
According to diet-weight-lose.com:
Weight: 110 lbs (50 kg)
Height: 5'38'' (1.64)
Born in: Monaco
Measurements: 34-24-35 (75-60-77)
Her diet: "I think there's is no good or bad food, the secret is to eat it when needed"
Her exercises and work-out: She's a fan of skiing and snowboarding and usually she rides a horse once per week "It's my passion"