Princess Charlotte and Prince Louis arrive at Westminster Abbey for

Princess Charlotte and Prince Louis arrive at Westminster Abbey for the coronation

The Prince and Princess of Wales’ two youngest children, Princess Charlotte and Prince Louis, stole the hearts of royal fans today as they shared smiles en route to Westminster Abbey from Buckingham Palace for the coronation – and during the opening moments of the historic holding hands in worship.

Princess Charlotte, who turned eight this week, was seated alongside her little brother Prince Louis in a royal car with the Prince and Princess of Wales after leaving the palace, and a short time later in the front row of the Abbey.

The siblings arrived without their older brother Prince George, aged nine, who was a Page of Honor to his grandfather. The Prince and Princess of Wales’ two youngest children behaved impeccably during the service, with Charlotte offering a reassuring presence to her younger brother, who could not help yawning during the holy service.

The young princess wore an Alexander McQueen dress and cape of ivory silk crepe with ivory stitch embroidery of rose, thistle, daffodil and shamrock motifs to symbolize the four nations.

She also wore a Jess Collett x Alexander McQueen headdress made of silver bullion, crystal and silver thread, similar to the headdress worn by the Princess of Wales for the occasion.

Princess Charlotte offers younger brother Prince Louis a comforting hand as the couple arrive at Westminster Abbey to watch their grandfather's coronation ceremony

Princess Charlotte offers younger brother Prince Louis a comforting hand as the couple arrive at Westminster Abbey to watch their grandfather’s coronation ceremony

Princess Charlotte smiles sweetly as she arrives at the coronation alongside her younger brother Louis

Princess Charlotte smiles sweetly as she arrives at the coronation alongside her younger brother Louis

Princess Charlotte smiles beautifully and waves to the crowd as she joins her brothers in the carriage

Princess Charlotte smiles beautifully and waves to the crowd as she joins her brothers in the carriage

In true fashion, Prince Louis pulled a hilarious face as he passed the excited crowd on his way to Buckingham Palace

In true fashion, Prince Louis pulled a hilarious face as he passed the excited crowd on his way to Buckingham Palace

Princess Charlotte and Prince Louis appear to be enjoying the celebration of the historic day at Westminster Abbey

Princess Charlotte and Prince Louis appear to be enjoying the celebration of the historic day at Westminster Abbey

Look at this!  Prince Louis points out something at the abbey to his older sister

Look at this! Prince Louis points out something at the abbey to his older sister

It was thought that Prince Louis might not have attended the ceremony, but the young prince arrived at Westminster Abbey along with his parents and older sister

It was thought that Prince Louis might not have attended the ceremony, but the young prince arrived at Westminster Abbey along with his parents and older sister

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The Princess of Wales, resplendent in red, white and blue, pictured with Prince Louis entering Westminster Abbey

The Princess of Wales, resplendent in red, white and blue, pictured with Prince Louis entering Westminster Abbey

Prince Louis looked chic in a tailored navy blue tunic made by Savile Row tailors Dege and Skinner

Prince Louis looked chic in a tailored navy blue tunic made by Savile Row tailors Dege and Skinner

Prince Louis and Princess Charlotte carefully measure their steps on their way to the Abbey

Prince Louis and Princess Charlotte carefully measure their steps on their way to the Abbey

Meanwhile, her younger brother Louis, who turned five on St. George’s Day April 23, looked regal in a tailored outfit.

For the historic occasion, the young prince is wearing an outfit by Savile Row tailors Dege and Skinner, consisting of a Hainsworth Garter Blue Doeskin tunic with specially designed lace detailing on the collar, cuffs and front. The trousers are black complete with Garter Blue stripes.

All eyes will be on Louis; Last year, Louis starred at his great-grandmother’s platinum anniversary celebrations, entertaining crowds with his antics on the balcony of Buckingham Palace and in the audience at the anniversary competition.

His parents are aware of the responsibility on his young shoulders and it is believed Prince Louis will not be attending tomorrow’s Windsor concert.

The youngsters reunite for the grand carriage procession back to Buckingham Palace after witnessing King Charles being crowned at the Abbey.

The adorable prince later slouched back in his seat, proving that the long service was too much for a five-year-old

The adorable prince later slouched back in his seat, proving that the long service was too much for a five-year-old

Elsewhere, the cheeky prince looked around the abbey and pointed at objects as he sat next to his older sister Princess Charlotte during the opening moments of the historic service

Elsewhere, the cheeky prince looked around the abbey and pointed at objects as he sat next to his older sister Princess Charlotte during the opening moments of the historic service

The fourth in line to the throne, looking regal in a tailored outfit, looked disinterested as he yawned throughout the ceremony

The fourth in line to the throne, looking regal in a tailored outfit, looked disinterested as he yawned throughout the ceremony

hold up!  The youngest son of the Prince and Princess of Wales, Louis, who turned five on St George's Day April 23, was made to re-melt at Westminster Abbey today for the King's coronation

hold up! The youngest son of the Prince and Princess of Wales, Louis, who turned five on St George’s Day April 23, was made to re-melt at Westminster Abbey today for the King’s coronation

The Prince and Princess of Wales enter Westminster Abbey ahead of Princess Charlotte and Prince Louis

The Prince and Princess of Wales enter Westminster Abbey ahead of Princess Charlotte and Prince Louis

Prince Louis of Wales makes his way into the Abbey ahead of the coronation service, walking alongside his older sister Princess Charlotte

Prince Louis of Wales makes his way into the Abbey ahead of the coronation service, walking alongside his older sister Princess Charlotte

A smile for the crowd!  Prince Louis, five, melted hearts as he joined the royal procession en route to Westminster Abbey alongside the Prince and Princess of Wales and his older sister Princess Charlotte

A smile for the crowd! Prince Louis, five, melted hearts as he joined the royal procession en route to Westminster Abbey alongside the Prince and Princess of Wales and his older sister Princess Charlotte

Princess Charlotte makes her way to Westminster Abbey. The young princess wears a Jess Collett x Alexander McQueen headdress made of silver bullion, crystal and silver thread, similar to the one worn by her mother

Princess Charlotte is seen on her way to Westminster Abbey. The young princess wears a silver bullion, crystal and silver thread Jess Collett x Alexander McQueen headpiece similar to that worn by her mother

Charlotte wears an Alexander McQueen dress and cape of ivory silk crepe with ivory satin stitch embroidery of rose, thistle, daffodil and shamrock motifs symbolizing the four nations

Charlotte wears an Alexander McQueen dress and cape of ivory silk crepe with ivory satin stitch embroidery of rose, thistle, daffodil and shamrock motifs symbolizing the four nations

The young king waved to The Mall as he traveled in the royal car with his parents and siblings;  his elder brother is a Page of Honor to his grandfather and follows separately behind the king in the procession

The young king waved to The Mall as he traveled in the royal car with his parents and siblings; his elder brother is a Page of Honor to his grandfather and follows separately behind the king in the procession

The Princess of Wales wears an Alexander McQueen gown in ivory silk crepe with silver bullion and thread embroidery of rose, thistle, daffodil and shamrock motifs and the cloak of the Royal Victorian Order

The Princess of Wales wears an Alexander McQueen gown in ivory silk crepe with silver bullion and thread embroidery of rose, thistle, daffodil and shamrock motifs and the cloak of the Royal Victorian Order

The king and queen will travel in the 261-year-old golden state carriage, followed by three carriages carrying working members of the royal family.

In the first carriage behind them will be the Prince and Princess of Wales along with George, Charlotte and Louis.

It will be the biggest public test for the three siblings, who grow more and more confident in front of the audience.

Thousands gathered on the Mall this morning as the fateful day of Charles III. started. Just over 2,000 people descended on Westminster Abbey this morning for the historic first coronation of a British monarch in 70 years at Westminster Abbey.

1683367289 975 King Charles begins his historic procession Monarch leaves Buckingham Palace

Crowds clapped and cheered as he walked from Clarence House along the Mall to the Palace as his fateful day finally came

1683377106 401 Princess Charlotte and Prince Louis arrive at Westminster Abbey for

Britain’s great Coldstream Guards march through The Mall

The monarch has been an heir since he was three years old and is now ready to finally face his destiny day with the woman he loves by his side. VIP guests began queuing a mile from the abbey from 6am to snag one of the 2,300 prime seats inside.

Charles is crowned in a Christian ceremony dating back 1,000 years on a day dripping with glorious pageantry. It will also spotlight Britain’s place on the world stage.

His family, including Prince Andrew and Princess Anne, enjoyed dinner at the Mayfair Club Oswald last night. Mike and Zara Tindall were out until 2am. Prince Harry flew in from Los Angeles yesterday for his 24-hour trip. Last night it emerged he was relegated to the third tier of the Abbey with other non-working royals.

Around 100 million viewers worldwide watch on television and around two million people – from all corners of the UK, Commonwealth and the world – attend the historic event in London.

The king’s guests arrived at the abbey from 7am – four hours before the ceremony. Around 100 heads of state are in London, with representatives from 203 countries taking part.