Prince and Princess of Wales are joined by Prince George and Princess Charlotte in Windsor

The Prince and Princess of Wales were joined by their three children as they attended Mattins’ traditional Easter celebration at St George’s Chapel in Windsor today.

Kate, 41, looked radiant in a bright blue dress as she walked hand in hand with four-year-old Prince Louis, who wore a sharp suit jacket, tie and powder blue shorts.

The couple’s youngest child made his very first appearance at the traditional Easter Sunday service – which is sure to delight many royal spectators.

The mum-of-three paired her recycled Catherine Walker dress with an £825 bespoke pillbox and matching handbag, opting for a pair of pointy nude heels.

She completed her Easter ensemble with a pair of striking gold, lapis and moonstone earrings and kept her makeup soft and neutral for the morning service.

Kate, 41, looked radiant in a bright blue dress as she walked hand in hand with four-year-old Prince Louis, who wore a sharp suit jacket, tie and powder blue shorts

Pictured: Kate Middleton and Prince Louis

Pictured: Kate Middleton and Prince Louis

The mother and son held hands as they approached St George’s Chapel in Windsor today

Princess Charlotte wore a navy blue dress and light blue tights during her Easter Sunday outing

Princess Charlotte wore a navy blue dress and light blue tights during her Easter Sunday outing

Her husband Prince William, 40, wore a classic dark blue suit and pink tie, while Prince George, nine, and Princess Charlotte, seven, wore complementary colours.

Charlotte was dressed in a navy dress and powder blue tights, with a blue bow in her hair, while her older brother matched Louis in a navy suit and tie.

Today’s service is the first since the Queen’s death last September.

The late monarch did not attend Easter service last year due to the mobility issues she had at the time, and was instead represented by senior royals.

The Wales family was in a group of younger royals at the back of the party that walked from Windsor Castle to St George’s Chapel on a Sunday morning.

That group included the King’s niece Princess Beatrice and her husband Edo Mapelli Mozzi, and Mike and Zara Tindall with their two eldest children, Mia and Lena.

The King and Queen Consort – also in royal blue – led the party. Behind them were his brother and sister, Prince Andrew and Princess Anne.

Next in line were the new Duke and Duchess of Edinburgh and their eldest son, James, now the Earl of Wessex. Their student daughter Lady Louise was absent.

The couple's youngest child made his first ever appearance at the traditional Easter Sunday service - much to the delight of some royal onlookers

The couple’s youngest child made his first ever appearance at the traditional Easter Sunday service – much to the delight of some royal onlookers

Her husband Prince William, 40, opted for a classic suit, while Prince George, nine, and Princess Charlotte, seven, wore complementary colors

Her husband Prince William, 40, opted for a classic suit, while Prince George, nine, and Princess Charlotte, seven, wore complementary colors

The younger members of the royal family held hands with their parents as they entered St. George's Chapel today

The younger members of the royal family held hands with their parents as they entered St. George’s Chapel today

The Wales family were joined at today's service by other members of The Firm, with King Charles and Queen Consort Camilla both spotted outside St George's Chapel

The Wales family were joined at today’s service by other members of The Firm, with King Charles and Queen Consort Camilla both spotted outside St George’s Chapel

Also present at the party was Princess Anne’s husband, Vice Admiral Sir Tim Laurence, who walked with Queen Elizabeth’s niece, Lady Sarah Chatto, and her husband Daniel.

They were followed by a heavily pregnant Princess Eugenie and her husband Jack Brooksbank, who are expecting their second child together.

The family group particularly missed the estranged Duke and Duchess of Sussex, who have not yet confirmed whether they will attend the King’s coronation.

Today will undoubtedly be a bittersweet moment for the royal family as they celebrate another family celebration without the Queen.

The King and Queen's consort looked in good spirits as they waved hello to the crowd of people watching as the Royal Family walked into St George's Chapel

The King and Queen’s consort looked in good spirits as they waved hello to the crowd of people watching as the Royal Family walked into St George’s Chapel

Also present on Sunday is Prince Andrew, who walked with his sister Princess Anne, who wore a cream double-breasted coat and an embellished navy blue hat

Also present on Sunday is Prince Andrew, who walked with his sister Princess Anne, who wore a cream double-breasted coat and an embellished navy blue hat

The photo shows Zara Tindall arriving with her daughter at St. George's Chapel on Sunday morning

The photo shows Zara Tindall arriving with her daughter at St. George’s Chapel on Sunday morning

The King and Queen's consort are pictured on Sunday

Elizabeth II is buried in the church's small King George VI Memorial Chapel, next to Prince Philip, the late Duke of Edinburgh, and her late parents George VI and the Queen Mother, with their four names inscribed on a new black stone slab in the floor

Elizabeth II is buried in the church’s small King George VI Memorial Chapel, next to Prince Philip, the late Duke of Edinburgh, and her late parents George VI and the Queen Mother, with their four names inscribed on a new black stone slab in the floor

Sunday also marks the second anniversary of the late monarch’s beloved husband, Prince Philip. He died at Windsor Castle on April 9, 2021.

After this morning’s service, it is believed that the royal family will keep the tradition and gather at Windsor Castle for the holiday weekend.

It is thought that King Charles and Queen consort Camilla – who are preparing for their coronation – will join the family, as will the Prince and Princess of Wales.

The royal family are expected to enjoy a roast dinner together after a gathering in St George’s Chapel, with menu items – such as venison and spring vegetables – sourced from the royal estates.

The mother-of-three paired her Catherine Walker dress - which she has worn before - with a matching hat and handbag, opting for a pair of nude heels for the occasion

The mother-of-three paired her Catherine Walker dress – which she has worn before – with a matching hat and handbag, opting for a pair of nude heels for the occasion

Prince George, nine, matches his parents in a navy suit, tie and patterned tie for Easter Sunday

Prince George, nine, matches his parents in a navy suit, tie and patterned tie for Easter Sunday

It's also likely to be a moving moment for the royal family, with the 15th-century chapel serving as the late Queen's final resting place and Easter Sunday celebrations the first since her death (Zara and Mike Tindall are pictured with their family on Sunday)

It’s also likely to be a moving moment for the royal family, with the 15th-century chapel serving as the late Queen’s final resting place and Easter Sunday celebrations the first since her death (Zara and Mike Tindall are pictured with their family on Sunday)

But while some traditions are likely to be kept, it’s been reported that now that Charles is monarch, he may be hosting a more relaxed event than the late Queen, who was believed to have strict dining rules.

RoyaI told expert Ingrid Seward The sun that one is specific late Queen’s dinner rule that Charles might choose to relax.

She said, “They will all eat together, but not the young children who will eat in the dining room of the nursery.

‘The Queen used to say they shouldn’t eat at the table until they could hold a knife and fork properly, but Charles might have relaxed that rule. But dinner is for adults only.’

Meanwhile, mum-of-three Kate, 41, was reportedly planning to host an Easter egg hunt for the royal children.

According to Ingrid: ‘Kate is a great organizer and will almost certainly organize an Easter egg hunt – the kids can also go to the royal stables and see the horses there and there’s an indoor pool to swim in and ponies to ride.’

The Royal Family arrive at St George's Chapel for their first Easter Sunday without the Queen

The Royal Family arrive at St George’s Chapel for their first Easter Sunday without the Queen