King Charles III's coronation: Princes Louis, George and Princess Charlotte steal the show

Princes Louis, Prince George and Princess Charlotte.
Princes Louis, Prince George and Princess Charlotte. Photo credit: Getty Images

The youngest members of the Royal Family have once again stolen the show during King Charles III's coronation overnight. 

King Charles III was crowned in a ceremony at Westminster Abbey on Saturday (local time) after becoming monarch upon the death of his mother, Queen Elizabeth II, in September last year.

The first glimpse of the youngest members of the Royal Family came as they arrived in a car outside the doors of the Abbey.

Prince Louis of Wales, five - the youngest child of Prince William and Catherine, Princess of Wales - peered out the car window and gave a tiny wave to the crowds, looking intrigued by the pageantry on display.

Prince George, nine - the couple's oldest child and second in line to the throne - had an important role to play in the coronation, acting as one of his grandfather's Pages of Honour.

As a page, Prince George's task involved carrying the King's robes along with fellow pages Nicholas Barclay, 13, Ralph Tollemache, 12, and Lord Oliver Cholmondeley, 13, who are sons of friends of the King.

George was also snapped cheekily poking his tongue out and pulling a funny face during the coronation. 

 Prince George attends the Coronation of King Charles III and Queen Camilla at Westminster Abbey.
Prince George attends the Coronation of King Charles III and Queen Camilla at Westminster Abbey. Photo credit: Getty Images

Louis and his sister Princess Charlotte, eight, didn't have official roles but still were involved in the coronation and played a major part in the procession back to Buckingham Palace after the King was crowned.

The siblings also melted the hearts of onlookers and viewers around the world with a sweet moment that was captured on camera. As they walked into Westminster Abbey behind their grandfather, Louis was seen tightly holding the hand of his sister.

Prince Louis and Princess Charlotte.
Prince Louis and Princess Charlotte. Photo credit: Getty Images

For those paying particularly close attention, you might've spotted Louis yawning when he was sitting between his mother, the Princess of Wales, and Charlotte before pulling a disappearing act from the service for about 30 minutes. 

Prince Louis disappeared from the service for around 30 minutes.
Prince Louis disappeared from the service for around 30 minutes. Photo credit: Getty Images

Twitter users were quick to pick up on this, with one person saying, "I love how Prince Louis was getting bored and now disappeared from the front row. Children will be children!"

Another added, "Where has Louis gone? He was standing next to his mum and [now] he's disappeared?"

It was thought the young royal may leave early, but luckily for his adoring fans, he returned before the end of the service.

It was later revealed that Louis' disappearance was indeed planned, so the five-year-old prince could "retire" during the service due to his young age, the Mirror reports.

As well as eliciting a yawn or two from the young prince, he was also spotted pointing things out to Charlotte from their seats near the high altar.

"Louis just always wants to have fun and is quite excited by it, they all are. He's been giggling with his brother and sister, he finds it all very amusing," a source close to the family said. 

The youngest members of the Royal Family later gave the crowds a wave when they appeared on the balcony of Buckingham Palace alongside King Charles and Queen Camilla. 

It comes after Louis' big moment during the late Queen's Platinum Jubilee celebrations in June, where he was captured throwing a tantrum and covering his ears while screaming during the flypast.