According to royal biographer Ingrid Seward, Princess Kate shares a "sisterly bond" with Sophie, Duchess of Edinburgh. Read more about their sweet relationship, here.

While on an official engagement with her husband, Prince Edward, Duchess Sophie was spotted wearing a thick brown belt with a statement medallion buckle. And her take on the 'horse-girl' aesthetic ...

The “sisterly bond” between Kate Middleton and Sophie, Duchess of Edinburgh was on full display for Remembrance Sunday on Nov ...

The Duchess of Edinburgh was all smiles as she attended a charity event on Monday in her role as patron of Wellbeing of Women ...

Their storied beginning seemed to go south just ahead of their 2018 wedding, but Kate Middleton and Sophie, Duchess of ...

The Duchess of Edinburgh, Sophie, has made a public appearance shortly after her daughter, Lady Louise Windsor, celebrated ...

Duchess Sophie, who's the royal family's secret weapon, put on a stylish display as she stepped out in Hounslow days after ...

Duchess Sophie looked stylish as she embraced her winter wardrobe and decided to wrap up warm by putting on a layered display ...

The Princess of Wales has grown incredibly close with one senior working member of the Royal Family, says an expert.

The Princess of Wales has been given much-needed support by the Duchess of Edinburgh through a very difficult year, in which she has fought a private battle with cancer ...

Princess Kate paid a heartfelt tribute to Duchess Sophie after the two graceful royal women shared a sweet moment at the ...

As the Princess of Wales turned to leave the annual Service of Remembrance on Whitehall after making a poignant return to ...