American president tweet Rest in eternal peace. My deepest sympathy to the Royal family on the passing of Her Majesty, Queen Elizabeth II. She was an amazing woman and will be sadly missed
Flags had return to full mast for a 24-hour period beginning at 13:00 BST on Saturday to mark the proclamation of Charles as King, before returning to half mast.
Over the years, King Charles III has drawn a lot of criticism for his seemingly extravagant spending, counting his six homes and multiple luxury cars.
Hours before the wedding, Princess Diana Spencer had decided to call it quits as she had started getting hints of Charles's affair with Camilla.
Queen Elizabeth II death: Harry was the last to arrive at Balmoral Castle on Thursday, as the queen's closest relatives rushed to be with her in her final hours.