"They have a sisterly bond and Sophie is like the older sister Kate never had," royal author and commentator Ingrid Seward told Hello! of the royal duo. Sophie, the Duchess of Edinburgh, married Prince Edward in 1999 and shares two children, Lady Louise and James, the Earl of Wessex, with the Duke of Edinburgh.

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.

Multiple royal experts told Hello! that Sophie is like an 'older sister' to Kate and both of the girls share similar experiences when it comes to the royal family.