STOCKHOLM, SWEDEN - JANUARY 30: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge pose with King Carl XVI Gustaf of Sweden, Queen Silvia of Sweden, Prince Daniel, Duke of Vastergotland and Crown Princess Victoria of Sweden ahead of a lunch at the Royal Palace of Stockholm during day one of their Royal visit to Sweden on January 30, 2018 in Stockholm, Sweden. (Photo by Victoria Jones-Pool/Getty Images)