For the royal family, honoring the memory of the woman who, undoubtedly, changed the monarch is so vital. And what Prince William and Kate Middleton tell their children about the late Princess of Wales is really tugging on our heartstrings. Aug. 31 may mark the 22nd anniversary of Princess Diana's death of the late Princess of Wales, but Prince William and Duchess Kate honor her memory every single day. Since they've become parents, they have used the memory of Princess Diana as a guide for their parenting. According to a source who spoke with Us Weekly, “Diana was such a...