Kate Middleton and Prince William are helping to mark history. The Prince and Princess of Wales stepped out to witness the first woman cleric to lead the Church of England during a service at Canterbury Cathedral on Wednesday, March 25. Prince William represented his father, King Charles, 77, at the ceremony in which Dame Sarah Mullally was installed as the 106th Archbishop of Canterbury. It is an established tradition that the heir to the throne takes on the role of leading the royal family in witnessing the event. Prince William, 43, and Princess Kate, 44, arrived shortly before the service...