FILE - Britain's Prince William and Kate, Duchess of Cambridge attend the 1st Battalion Irish Guards' St. Patrick's Day Parade at Mons Barracks, Thursday March 17, 2022 in Aldershot, England. Long before he became King Charles III, Britain’s new monarch had indicated that he wants a “slimmed down” monarchy with a tighter core group of full-time working royals and lower expenses. (Chris Jackson/Pool via AP, File)