King Charles III was crowned Saturday in a once-in-a-generation coronation spectacle at London’s Westminster Abbey — but the historic occasion was marred by family drama. For the first time since the late Queen Elizabeth II’s coronation in 1953, Britain crowned a new monarch. Charles and Queen Camilla in the Diamond Jubilee State Coach for the King’s Procession. Photo by Dan Charity – WPA Pool/Getty ImagesKing Charles III was coronated in a once-in-a-generation ceremony inside Westminster Abbey. BUCKINGHAM PALACE/AFP via Getty ImagesMeanwhile, Prince Harry hastily left London less than an hour after his father was crowned, rushing home to California to join his son’s birthday celebration.