Sophie's sweet moment with Prince William as they giggle over joke

Japan's Emperor and Empress tour Westminster Abbey after King Charles and Queen Camilla take them around Buckingham Palace exhibit as royals roll out the red carpet ahead of state banquet this evening

Sophie shares a sweet moment with nephew Prince William as they welcome the Emperor of Japan, Naruhito, and Empress Masako for a state visit. The pair are seen dissolving into giggles over a joke by the Duke of...