A look at all the moments Princess Charlotte has been the best big sister to Prince Louis

Just a few days after little Louis was born, a then three-year-old Charlotte melted hearts across the world in newly released pictures which showed her tending to the newborn. She was seen giving her little brother a tender kiss. 

The photos, shared by Kensington Palace on social media, were taken by their proud mum Kate and celebrate Louis's birth as well as his big sister's third birthday.

Back in 2021, the young Princess was with her doting mother, Princess Kate, and she was her eyes and ears when she and her brothers were watching the Pageant on the last day of Queen Elizabeth II's Platinum Jubilee Celebrations. 

When her younger brother Louis was sucking his thumb, she was the first to take his hand away from his mouth in a very relatable sibling moment.

Another moment from the Jubilee celebrations saw Charlotte encourage her little brother to stop waving as they headed to Horse Guards Parade for Trooping the Colour. Louis was very excited to greet members of the public from their carriage but was interrupted by his elder sister, who pushed his hand down as his excitable waves peaked in speed.

Young Charlotte flashed a sweet smile towards her brother Louis as he made his Easter service debut alongside his mother, the Princess of Wales, in April 2023. Princess Charlotte could be seen holding hands with her father, Prince William, and was photographed casting a furtive glance at Louis - no doubt watching out for any cheeky moments in the spotlight.

Princess Charlotte protectively held Prince Louis' hand as the sibling duo made their way into Westminster Abbey ahead of King Charles and Queen Camilla's spectacular coronation ceremony. Following the end of the service, Princess Charlotte also led her brother out of Westminster Abbey with a guiding hand. The siblings looked so grown up as they followed in the footsteps of their parents, the Prince and Princess of Wales.

During their big balcony moment, Princess Charlotte enjoyed a giggle with her brother as they waved to the throngs of royal well-wishers lining the Mall. The youngster sweetly flashed a warm smile as she observed her brother making a series of cheeky faces.

Princess Charlotte helped her younger brother Louis when they posted Christmas cards at Princess Kate's annual Christmas carol concert in December. A Christmas Post Box was placed outside the West Door, for children to send handmade cards to other youngsters who might be struggling.