Kate Middleton and Sophie, the Duchess of Edinburgh, are reportedly very close. Following reports that Duchess Sophie stepped up to help Princess Kate, new photographs reveal that the pair showcased their sweet friendship at the Princess of Wales' annual Christmas carol concert on Dec. 6.

Sophie, Duchess of Edinburgh, was by the side of her 'royal sister', Princess Kate, during the Together at Christmas carol concert being aired tonight on ITV.

Kate, 42, reached out to Sophie for a touching kiss at the royal's fourth annual Together at Christmas concert inside Westminster Abbey on December 6.

There's a reason that Sophie, the Duchess of Edinburgh is often referred to as Kate Middleton's "royal sister." Prince Edward's wife has shown her strength throughout 2024, during which Princess Kate took a step back from her public facing role within the Royal Family.