Kate Middleton found a mentor in Sophie, the Duchess of Edinburgh when she was first welcomed into the royal fold, but their warm working relationship has developed into an even closer sisterly bond ...

The Duchess of Gloucester, who is the hard-working cousin of Queen Elizabeth II, has become one of King Charles' most trusted ...

As a source told VF, the Duchess of Edinburgh, a new family favorite, "prefers to keep the attention on her causes and charities rather than on herself." ...