Prince Louis is a fan favourite due to his spirited and cheeky nature.

Kate Middleton made a funny confession about Louis during a visit to a rehabilitation centre in Wales.

Louis attends Lambrook School in Berkshire with his siblings, Charlotte and George.

After school, Louis likes to let off steam by spending time outside.

The royal children are known by their classmates simply as George, Charlotte, and Louis Wales.

Lambrook School is the first school that the royal children have attended together.

Members of the royal family don't use a surname but can be recognised by their house name, such as Windsor or Mountbatten-Windsor.

George, Charlotte, and Louis are in Year 5, Year 3, and reception class respectively.

The use of the Wales surname is a nod to their parents' titles, the Prince and Princess of Wales.