Press Association photographer John Stillwell snapped the royal family on holiday in the French Alps in March 2016. "This was their first holiday as a family of four and the first time either of the children had played in the snow," a Kensington Palace spokesperson said.
"The Duke and Duchess hope people enjoy the photos," a Kensington Palace spokesperson said.
Prince William stopped Kate Middleton from smashing a snowball in his face.
Until this vacation, the Cambridges had never shared pictures from a private family vacation with the media.
At 10 months old, Princess Charlotte already has a few teeth coming in.
Long before they became parents, both Kate Middleton and Prince William were avid skiers.