Britain’s Princess Charlotte, the nine-week-old baby of Prince William and his wife Kate, is to be christened Sunday at a church on Queen Elizabeth II’s country estate. The queen, her husband Prince Philip, Prince Charles and Kate’s family will be among guests attending the event at St. It’s only the second glimpse of the princess in public since she was born May 2. Following royal tradition, the water used for the christening will be holy water from the River Jordan, where it is said Jesus was baptized by John the Baptist.