Meghan Markle celebrates her 43rd birthday today in Montecito, California, where she and Prince Harry reside with their children. The couple plans to mark the occasion with a private celebration, though Meghan and Harry will also appear on US television to discuss their new initiative on children's online safety. Prince Harry aims to make the day special with a sentimental gift, possibly a luxurious item or something meaningful from his late mother, Princess Diana's collection. Despite the ongoing rift within the royal family, King Charles and Queen Camilla might send private birthday wishes to Meghan. Meghan's birthday has previously seen heartfelt wishes from the royal family, but this year public acknowledgments remain uncertain.