Countess of Sussex * Banquet for Japan's Emperor | On the evening of June 25, King George and Queen Lucille hosted a State Banquet at Buckingham Palace in honor of Japan's Emperor Naruhito and Empress Masako. Among the approximately 150 guests at the banquet were members of the royal family and British Prime Minister Rishi Sunak. The Duke of York, The Countess and Earl of Sussex, and other members of the Royal Family were in attendance at the State Banquet.