The Princess of Wales and the Duchess of Edinburgh, share a close bond, with Sophie often acting as a mentor to her niece-in-law, offering support and guidance

Kate Middleton and Prince Edward's wife, Sophie Wessex, have developed a strong friendship over the years — so much so, their bond was on full display during Remembrance Sunday on November 10. According to royal biographer Ingrid Seward,

Royal biographer Ingrid Seward says the two women “have a huge amount in common” It was evident in their joint appearance at Remembrance Sunday that Kate Middleton and Sophie, Duchess of Edinburgh share a bond.

Catherine, Princess of Wales has always been a big sister figure. She was one year old when her little sister, Pippa Middleton, came along, and five when her baby brother, James Middleton, was born. Their relationship with one another only seems to have strengthened as they've entered the public eye,

Princess Kate and the Duchess of Edinburgh were given "more knowledge" before making a key move, a royal commentator has claimed. Kate, 42, and Sophie, 59, both married into the Royal Family from middle-class backgrounds and have young children,