9. Lady Louise Windsor
Relationship to the throne: Granddaughter of Queen Elizabeth II (daughter of Prince Edward and Sophie, Countess of Wessex)
Born: Nov. 8, 2003
Photo: Lady Louise Windsor disembarks the Hebridean Princess with other members of the royal family on Aug. 2, 2010 in Scrabster, Scotland.
Pictures: The littlest royals
Credit: Chris Jackson/Getty Images