Princess Charlotte, the newborn daughter of Prince William and Kate, will be christened in a private ceremony next month, officials said today. The ceremony is set for July 5 at St. Mary Magdalene Church on Queen Elizabeth II's sprawling Sandringham estate in Norfolk, on England's eastern coast. Princess Diana was christened at the same church, and Justin Welby, the Archbishop of Canterbury, will conduct the ceremony. The queen, her husband Philip, Prince Charles, and his wife Camilla are expected to join Kate's family at the ceremony, along with the baby's godparents, who have not yet been announced. (More Princess Charlotte stories.)