Prince William and Kate Middleton's 7-year-old adorably suited up for the royal family's festive outing at Sandringham on ...

Prince Louis stole the show on the Sandringham Christmas walk when a well-wisher handed him an oversized Lindor chocolate egg ...

Prince William's son grabbed a giant Lindt chocolate from his father after the Christmas gift was handed to the royals at ...

Although age is, of course, a factor that impacts behaviour, it is believed there is another reason why Louis is often ...