As the royal family prepares to mark what would have been Queen Elizabeth II’s 100th birthday next week , attention once again turns to the incredible legacy of Britain’s longest-reigning monarch. Among those honouring her memory will be the Princess of Wales , who shared a close bond with the late monarch. Over the years, Kate earned her grandmother-in-law’s trust and admiration, quietly learning from the ultimate royal role model. From her sense of duty to her calm, measured approach to