Happy birthday Prince George! The royal member — who recently travelled to Poland and Germany with Prince William, Kate Middleton and Princess Charlotte on a royal tour — celebrated his fourth birthday at the Kensington Palace yesterday. To mark the end of Prince George's third birthday year, a new portrait shot by royal photographer Chris Jackson has been revealed to the public.

Jackson — who has previously worked with the royal family on several occasions including the Trooping of the Colour parade and the British Royals' first official visit to Paris — took to his Instagram account to express that he's "thrilled and honoured that the Duke and Duchess of Cambridge have chosen to release this portrait I took to celebrate Prince George's 4th Birthday. He is such a happy little boy and certainly injects some fun into a photoshoot!"

Take a look at the portrait above and then, take a look at His Royal Highness dressed as a page boy at Pippa Middleton's wedding