Speculation is mounting the King could be reunited with his grandchildren Prince Archie and Princess Lilibet after the Duke and Duchess of Sussex were offered royal accommodation for their UK visit.
Harry and Meghan staying at a palace with their children would signal a major thawing in the relationship between the King and his son, and offer the perfect opportunity for Charles to reconnect with the young royals.
It is four years since Archie, seven, and Lilibet, five, last saw their grandfather the King in person during Queen Elizabeth II's Platinum Jubilee celebrations in 2022.
The Sussexes are expected to travel from their Californian home to the UK next month to attend celebrations marking the one-year countdown to Harry's Invictus Games hosted by Birmingham, with the duke also due to attend events with WellChild and Scotty's Little Soldiers, charities he supports.