Prince Louis has had many funny and sweet moments caught on camera over the years. (Getty Images)
Prince Louis may be Prince William and Kate's youngest child, but if the 2022 Platinum Jubilee is anything to go by, he appears to be the most sprightly.
The younger brother of Prince George and Princess Charlotte, and the fourth in line to the throne, was born on April 23, 2018 in the private Lindo Wing of St Mary's Hospital in Paddington, weighing 8lb 7oz.
He was christened as Louis Arthur Charles by the Archbishop of Canterbury Justin Welby at the Chapel Royal, St James' Palace, among friends and family in July 2018.
Read more: Prince Louis wears dad William's sailor outfit 37 years later
In 2022, before Louis began his first year of school, the Prince and Princess of Wales moved their children to Adelaide Cottage in Windsor and all three of their children started at Lambrook School.
The move came after Louis delighted royal watchers with his antics during the late Queen’s Platinum Jubilee celebrations in June 2022. During one of the events, Louis was seen poking out his tongue to his mum – an image which spawned many memes.
Louis has now delighted royal fans once more by appearing at the King's coronation. He accompanied his parents and siblings throughout the day and
made another expressive appearance on Buckingham Palace's balcony.
Here are some of Prince Louis' sweetest moments so far.
Prince Louis' most memorable moments in pictures. Louis reacts to the coronation flypast Kate smiles at Louis as he reacts to the flypast going overhead Buckingham Palace. (Getty Images) Louis yawns during King Charles III's coronation Louis is all of us during the two-hour coronation ceremony. (Getty Images) Louis, George and Charlotte peer out of the carriage Louis joins his siblings, Prince George and Princess Charlotte in a carriage during the King's coronation. (Getty Images) Prince Louis' fifth birthday Prince Louis on his fifth birthday. (PA/Millie Pilkington) Two images were released to mark Prince Louis' fifth birthday. (PA/Millie Pilkington) The late Queen's birthday 2023 Mother's Day 2023 The Prince and Princess of Wales' 2022 Christmas card Prince Louis' first day of school Prince George, Princess Charlotte and Prince Louis arrive for a settling in afternoon at Lambrook School, near Ascot on September 7, 2022. (Getty Images) Prince Louis on his first day of school. (Getty Images) Prince George, Prince Louis and Princess Charlotte greet their new headmaster. (Getty Images) Father's Day 2022 Prince Louis' Platinum Jubilee 2022 antics Members of the royal family appear on the balcony following the Platinum Pageant on June 5, 2022 in London, England. (Getty Images) Prince Louis attends the Platinum Pageant on The Mall on June 5, 2022 in London, England. (Getty Images) Prince Louis 'thumbs his nose' and sticks his tongue out at his mother as they attend the Platinum Pageant on The Mall on June 5, 2022 in London, England. (Getty Images) Prince Louis gets excited during Platinum Jubilee celebrations. (Getty Images) Prince Louis sits on his grandfather King Charles' lap during Platinum Jubilee celebrations. (Getty Images) Prince Louis and Kate Middleton during Platinum Jubilee celebrations. (Getty Images) The Prince and Princess of Wales with their children during the Queen's final balcony appearance. (Getty Images) Prince Louis covers his ears as jets fly over Buckingham Palace. (Getty Images) Prince Louis shares a sweet moment with the late Queen during a balcony appearance. (Getty Images) Prince George, Prince Louis, and Princess Charlotte during the Trooping the Colour carriage procession at the Platinum Jubilee in 2022. (Getty Images) Prince Louis' fourth birthday portraits Prince Louis in Norfolk, where the Cambridge's spend much of their time. (The Duchess of Cambridge/PA) Prince Louis enjoys cricket just like his great-grandfather did. (The Duchess of Cambridge/PA) The Prince and Princess of Wales' 2021 Christmas card Prince Louis' third birthday portrait Prince William and Kate shared a picture of Louis the night before his third birthday, taken the morning before he went to Willcocks Nursery School for the first time in April 2021. (Duchess of Cambridge) Walking his first red carpet at the London Palladium in 2020 The December 2020 outing was a family occasion, which happened just before another coronavirus lockdown. (WPA Pool/Getty Images) Louis held his mother's hand on the red carpet and looked mesmerised by the action. (WPA Pool/Getty Images) Prince Louis browsed the programme as he sat with the Duchess of Cambridge at the theatre in London in December 2020. (WPA Pool/Getty Images) He looked ready to applaud the performers as he waited for the show to begin. (WPA Pool/Getty Images) Prince Louis was also spotted sucking his thumb and casting his eyes across the crowd. (WPA Pool/Getty Images) The Prince and Princess of Wales' 2020 Christmas card With David Attenborough in 2020 Celebrating Prince William's birthday in 2020 Marking Prince Louis' second birthday during lockdown Clapping for carers and the NHS Arriving at Christmas lunch, 2019 Prince Louis was spotted sitting in the back of the car as his father drove them for a Christmas lunch at Buckingham Palace in December, 2019. (Indigo/Getty Images) At the at the King Power Royal Charity Polo match in 2019 Enjoying a family outing at the King Power Royal Charity Polo Match, in which Prince William and Prince Harry were competing for the Khun Vichai Srivaddhanaprabha Memorial Polo Trophy in July 2019. (Indigo/Getty Images) Louis made his mother laugh as he sported a pair of sunglasses. (Indigo/Getty Images) Louis pictured looking keen to meet his new cousin Archie, held by Meghan Markle. (WireImage/Getty Images) Making his Buckingham Palace balcony debut during the 2019 Trooping of the Colour Louis made his balcony debut when he was just one, in 2019. (Indigo/Getty Images) On the Buckingham Palace balcony for Trooping the Colour, Prince Louis was held by his mum as he watched the RAF fly past. (Indigo/Getty Images) Louis watched the parade from inside Buckingham Palace with older sister Princess Charlotte. (/Indigo/Getty Images) Celebrating Father's Day in 2019 Visiting the Royal Chelsea Flower Show in 2019 Prince Louis' first birthday portraits The Prince and Princess of Wales' 2018 Christmas card Prince Louis' christening in 2018 Louis at his christening in the Chapel Royal in July 2018. (AFP/Getty Images) Prince Louis' birth in April 2018 The Duchess of Cambridge with newborn Prince Louis in April 2018. (WireImage/Getty Images) Louis born on 23 April at 11:01am, weighing 8lbs 7oz, and is fifth in line to the throne. (WireImage/Getty Images) Watch: Duke and Duchess of Cambridge joke about Prince Louis' cheeky behaviour during Queen Elizabeth's Platinum Jubilee celebrations