Article continues below advertisementOK! can reveal Prince Archie and Princess Lilibet are already set to join Brand Sussex. Prince Harry and Meghan Markle's two youngsters - ages 6 and 4, respectively - will start their "business journey" by stepping into new roles at their parents' expanded philanthropic enterprise, according to sources close to the Duke and Duchess of Sussex. Insiders tell us that despite their tender ages, the children will be involved in Archewell Philanthropies as Harry and Meghan aim to highlight the family-oriented side of their global charitable efforts.