On more than one occasion, Prince Louis has proved he's just like his uncle Prince Harry! Over the past year, royal watchers have relished watching the youngster grow and come out of his shell. However, there is one habit the royal baby is unable to shrug off - sucking his thumb! Here at HELLO!, we've decided to take a look back at some our favourite moments when members of the royal family have *been caught partaking in the bad habit.
GALLERY: All the times royal baby Archie has melted our hearts
Prince Louis
In June, when he made his debut appearance at Trooping the Colour, his mother, the Duchess of Cambridge, was seen trying to gently remove his thumb from his mouth. He then happily started to wave to the planes flying overhead, delighting the crowd who were keen to catch a glimpse of him.