The newest member of Britain’s royal family came into the world on Saturday, but the Duke and Duchess of Cambridge (otherwise known as Will and Kate, the darlings of monarchy fanatics), just announced the name of their daughter Monday morning. The full name is Charlotte Elizabeth Diana, but the “spare to the heir”—who is fourth in line to the throne after her big brother, Prince George—will be known as Her Royal Highness Princess Charlotte of Cambridge. Will and Kate are covering all their bases with the name, which honors the new princess’ grandfather (Prince Charles) great-grandmother (Elizabeth II, the current queen of England), and grandmother (the beloved Princess Diana, who died in 1997). Welcome to the world, Princess Charlotte …