George and Charlotte all grown up at Christmas church debut

A photo of Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge with Prince George of Cambridge and Princess Charlotte of Cambridge at the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
Prince George and Princess Charlotte made their Christmas Day church debut with their parents, the Duke and Duchess of Cambridge. Photo: Getty Images.

Prince George, 6, and four-year-old Princess Charlotte have made their debut at the royal family’s annual Christmas Day church service looking as grown up as ever.

Hand-in-hand with their parents, Kate Middleton and Prince William, the junior Cambridges made their way to the Church of St Mary Magdalene on Wednesday for the very first time with other key members of the Windsor clan in tow.

Charlotte was her mum’s mini-me in a bottle-green coat by Amaia and navy stockings while her big brother George switched his trademark shorts and socks combo for a pair of trousers just like his dad.

A photo of Prince George of Cambridge and Princess Charlotte of Cambridge at the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
George, 6, was grown-up in long pants while Charlotte, 4, opted for a smart green coat. Photo: Getty Images.
A photo of Prince George of Cambridge at the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
George kept a hold of his dad's hand during the walk to the church. Photo: Getty Images.

George’s mature wardrobe choice was sure to have turned the heads of those fans crowded along the path as it’s said to be a longstanding royal tradition for boys to begin sporting pants only when they reach about eight years of age.

The third in line to the throne hit another grown-up milestone a few days earlier when he was spotted riding in the passenger seat while the Duke drove them to his great-grandmother the Queen’s festive lunch.

The Duke of Cambridge and Prince George meet well wishers after attending the Christmas Day morning church service at St Mary Magdalene Church in Sandringham, Norfolk.
The Duke and his son meet well-wishers after the Christmas Day service. Photo: Getty Images.
Catherine, Duchess of Cambridge speaks to Princess Charlotte as Prince George watches as they leave after attending the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
At one point doting mum Kate crouched down to chat with her daughter. Photo: Getty Images.

The siblings made sure to greet onlookers under the watchful eye of their parents, with Charlotte at one point giving a woman in a wheelchair a hug after being gifted a pink flamingo toy.

A woman who gave Charlotte a doll told Sky News her manners were “outstanding” and added that brother George’s were also “perfect”.

Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge greet well-wishers after the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
Princess Charlotte gets some encouragement from the Duchess of Cambridge while greeting royal fans. Photo: Getty Images.
Princess Charlotte of Cambridge at the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
Charlotte manners were 'outstanding' according to an onlooker. Photo: Getty Images.

While it may have been their very first Christmas Day service, it’s not the first time Kate and Wills’ eldest kids have visited the iconic church on the Sandringham estate with Princess Charlotte having been christened there back in 2015.

George and Charlotte’s younger sibling, Prince Louis, 18 months, skipped the service as he was too young and reportedly stayed behind with his maternal grandmother Carol Middleton.

Princess Beatrice and Edoardo Mapelli Mozziconi attend the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
Princess Beatrice and her fiancé Edoardo Mapelli Mozziconi also attended the Christmas Day service. Photo: Getty Images.
Princess Eugenie and Jack Brooksbank attend the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
Princess Eugenie and husband Jack Brooksbank walked hand-in-hand. Photo: Getty Images.

Also absent was Louis’ great-grandfather Prince Philip, 98, who was hospitalised on December 21 due to a ‘pre-existing’ mystery condition.

After a four-night stay and curious comments by his son Prince Charles, the Duke of Edinburgh was reportedly discharged on Christmas Eve and flown by chopper to be with his family at Sandringham.

After waving the Queen, 93, off in her car the Cambridges and the rest of the royals including Princesses Beatrice and Eugenie and their respective partners will return to the estate for lunch and games, with a pause at 3 pm to watch Her Majesty’s Christmas speech.

Prince Edward, Earl of Wessex and Sophie, Countess of Wessex with James Viscount Severn and Lady Louise Windsor attend the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
Prince Edward and his wife Sophie, arrived with their children, James Viscount Severn and Lady Louise Windsor. Photo: Getty Images.
Queen Elizabeth II and Camilla, Duchess of Cornwall attend the Christmas Day Church service at Church of St Mary Magdalene on the Sandringham estate on December 25, 2019 in King's Lynn, United Kingdom.
Queen Elizabeth was resplendent in red ahead of Camilla, Duchess of Cornwall in purple. Photo: Getty Images.

Got a story tip or just want to get in touch? Email us at lifestyle.tips@verizonmedia.com

Want more lifestyle and celebrity news? Follow Yahoo Lifestyle on Facebook, Twitter and Instagram.