The “sisterly bond” between Kate Middleton and Sophie, Duchess of Edinburgh was on full display for Remembrance Sunday on Nov. 10, and royal biographer Ingrid Seward said Kate considers Sophie the older sister she never had.

The Duchess of Edinburgh attended a special charity event on Monday, marking the 60th anniversary of Wellbeing of Women at PwC's offices in London. In her role as patron of the women's health charity,

The Daily Mail‘s Rebecca English claimed that both women “repeatedly” reached out to Meghan in her early days in the royal family. Sophie was reportedly Queen Elizabeth IIs

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,