July 22 (UPI) -- Prince George smiles and laughs in new photos released on his sixth birthday.
"The Duke and Duchess of Cambridge are very pleased to share new photographs of Prince George to mark His Royal Highness's sixth birthday," the palace wrote.
"These two photographs were taken recently in the gardens at Kensington Palace by The Duchess of Cambridge. Thank you everyone for your lovely messages on Prince George's Birthday!" the palace added.
"Happy Birthday! Wishing you a very special day and lots of love!" the couple wrote.
Middleton and William are also parents to 4-year-old Princess Charlotte and 15-month-old Prince Louis. CNN said George attends Thomas's Battersea school in London, where Charlotte will begin school in September.