KING'S LYNN, ENGLAND - JULY 05:  Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge stand as Prince George of Cambridge looks into Princess Charlotte of Cambridge's pram as they leave the Church of St Mary Magdalene on the Sandringham Estate after the Christening of Princess Charlotte of Cambridge on July 5, 2015 in King's Lynn, England.  (Photo by Matt Dunham - WPA Pool/Getty Images)