As well as the couple attending, Princess Kate - who finished chemotherapy for cancer in September - is also expected to have her husband Prince William by her side at the event, along with her three children Prince George, 11, Princess Charlotte, nine, and Prince Louis, six.

Kensington Palace confirmed on Nov. 12 that the festive event would be held on Dec. 6, with 1,600 people invited to the royal event. Princess Kate's office said she wanted to recognize those who support others in need — individuals who have "above all else, shown that love is the greatest gift we can receive."

Kensington Palace has confirmed that families affected by the Southport attack have been asked to join the congregation at the Princess’s service.

Princess Kate Middleton made some thoughtful additions to the guest list of her annual Christmas carol service. The Princess of Wales, 42, invited families and survivors of a deadly stabbing in Southport,