Prince George and Princess Charlotte have been singing at a carol service to honour Queen Elizabeth II.
They joined 1,800 people at the Westminster Abbey event hosted by their mother the Princess of Wales.
Sunday also sees royal family members attend a Sandringham church service, marking a return to traditional royal festivities.
It will be the first time they have spent Christmas at Sandringham since 2019 and the royal standard will fly above the private Norfolk estate.
Singer Catherine Zeta-Jones narrated the Westminster Abbey carol service dedicated to the late Queen.
The service was attended by many members of the royal family including King Charles III and the Queen Consort, the Countess of Wessex, Princesses Beatrice and Eugenie as well as Zara and Mike Tindall.