"During The King’s recent hospital procedure for benign prostate enlargement, a separate issue of concern was noted," Buckingham Palace said in an emailed statement to NBC. "Subsequent diagnostic tests have identified a form of cancer."

Queen Elizabeth II herself reportedly saw the ghosts at Windsor Castle even before her death. #QueenElizabethII

"The Crown" new season announcement piqued royal fans' interest as it would explore the most controversial issues the royal family faced yet involving King Charles III and Princess Diana. #QueenElizabethII #TheCrown

King Charles III succeeded to the throne two days after Queen Elizabeth II died. Now, there's a date for his coronation. #KingCharlesIII #PrinceHarry