Prince Louis lovingly held hands with his second cousin Mia Tindall, nine, as he joined the rest of the royal family at Sandringham on Christmas Day.
Little Louis, five, was joined by Prince George, ten, Princess Charlotte, eight, and the Prince and Princess of Wales at Sandringham for Christmas.
Mia's sister Lena, five, walked behind the Wales holding hands with her parents Zara and Mike. Her younger brother Lucas, two, stayed home.
Holding hands with her mother, Princess Charlotte looked festive in a bottle green coat and her hair pulled back in pigtails.
Meanwhile, George, who was traveling alone, looked very grown-up in a sharp suit.
Prince Louis lovingly held hands with his second cousin Mia Tindall as he joined the rest of the royal family at Sandringham on Christmas Day
Louis held hands with his cousin as they entered the service
The Wales were joined by Mia Tindall, daughter of Zara and Mike Tindall
Big cousin Lena seemed to be looking after young Louis as they walked hand in hand into church
Mia and Louis appeared to be the best of friends as they walked to church
Louis and Mia walked into the church hand in hand
Other members of the company, including Prince Andrew, Duchess of York, Princess Beatrice, Edo Mapelli Mozzi, David Linely and the Chatto, were in attendance
The King and Queen walked side by side as they entered the church
Kate looked effortlessly chic in a blue coat with navy accessories
Meanwhile, Louis held hands with Prince William and Mia Tindall, the daughter of William's cousin Zara.
Charming Prince Louis, who often steals the spotlight with his cheeky appearances, took part in his first-ever Christmas walk last year.
Today he chose tweed trousers and a dark blue coat.
The King and Queen were joined by the Duke and Duchess of Edinburgh, Zara and Mike Tindall, as well as Princess Eugenie and her husband Jack Brooksbank.
Prince Harry and Meghan Markle stayed in California.
The Princess of Wales beamed with happiness as she attended the service alongside her husband and in front of other members of the royal family.
She looked elegant in her festive outfit as she waved to well-wishers who traveled to Norfolk today.
Hundreds of well-wishers lined up since the early hours of the morning to catch a glimpse of the royal family, waving excitedly as the king and queen consort made their way to the church.
Prince Harry has remained in the US with Meghan and their two children Archie and Lilibet – despite recent hopes of a thaw in relations between King Charles and his youngest son.
Kate opted for a bright blue coat, while Charlotte looked chic in a green dress with wool tights
Charlotte wore her hair in pretty braids as she held hands with her mother
Zara and Mike walked hand in hand with their daughter Lena
Princess Eugenie was without her children August and Ernest as she was joined by husband Jack
Charles and Camilla lead the way to church, followed by their family
Prince Andrew and Sarah Ferguson were also in attendance
The Duke and Duchess of Edinburgh opted for tweed tones as they entered the service
The Welsh family followed the King and Queen while the rest of the company followed behind
Sarah Ferguson wrapped herself up warmly in a bottle green outfit
Beautiful in blue! Kate looked effortlessly chic in the blue dress
Princess Anne and her husband Timothy Laurence entered the church
Royal celebrations usually begin when everyone arrives on Christmas Eve. The family opens presents, some of which are joke gifts – a royal family tradition.
On Christmas morning the family then attends the service at St. Mary Magdalene Church. Once they get home, Christmas dinner is served, followed by games in the afternoon.
Last Christmas, the royals underwent their biggest change in decades as they celebrated their first holiday season without Queen Elizabeth II, who had died just months earlier.
The King and Queen, along with the Princess Royal and her husband, Vice Admiral Sir Timothy Laurence, waved to well-wishers as they attended a Christmas Eve service at the church on Sunday.
Royal Christmas traditionally involves welcoming people outside the church and having a family dinner with turkey and all the trimmings.
For the second year in a row, the disgraced Duke of York attended church with the Sandringham family.
Andrew's alleged links to convicted sex offender Jeffrey Epstein will face further scrutiny in the new year with the release of hundreds of files from a libel case following a ruling by a US judge.
His ex-wife Sarah, Duchess of York, made her first public appearance at Sandringham in years, walking alongside her ex-husband and smiling broadly at the press.
Andrew's daughters were with their husbands, Princess Beatrice with Edoardo Mapelli Mozzi and Prince Eugenie with Jack Brooksbank.
The Duke and Duchess of Edinburgh joined the rest of the royal family on their way to church. The Duchess of Edinburgh wore a tailored version of the Claire Mischevani Kristen coat.
Prince Andrew (left) joined his family along with his ex-wife Sarah Ferguson and their daughters Princess Beatrice and Princess Eugenie
Lena Tindall went between her parents Mike and Zara Tindall
Lady Margarita Armstrong-Jones and the Earl of Snowdon at the Christmas morning service
Members of the Royal Family attend a Christmas service at Sandringham alongside the King and Queen
Charles' second Christmas message as monarch will be broadcast at 3pm and this year it was recorded in the Center Room at Buckingham Palace, which leads to the royal residence's iconic balcony.
The room is decorated with a live Christmas tree, which will be replanted after the broadcast.
Natural and sustainable decorations hang from its branches, including hand-turned wood, dried oranges, glass balls, pine cones and paper.
Charles, like Queen Elizabeth II, writes his Christmas broadcasts and last year he followed his mother's tried-and-tested template, a personal reflection of the year that touches on contemporary issues and has a Christian framework.
The king will deliver his second annual royal speech, with a focus on the environment.
It marks a departure from the typically apolitical speeches of his mother, the late Queen Elizabeth.