William and Kate Middleton, 42, along with their three children — Prince George , 11, Princess Charlotte, 9, and Prince Louis, 6 — are preparing to celebrate the holiday with King Charles and the majority of the royal family at Sandringham, the Norfolk estate that has long been the traditional Christmas gathering place for the royals.

Prince William and Kate Middleton’s 11-year-old son Prince George, who is second in line to the British throne, joined his family for the Princess of Wales’ annual carol service in London Dec. 6.

Prince Andrew and ex-wife Sarah Ferguson’s daughters, Princess Eugenie and Princess Beatrice, are not expected to join the royal family for Christmas this year. Find out why.