Across most Commonwealth realms - those countries in which Charles is monarch - the debate over whether to move to a republic is a live issue, albeit to varying degrees. Here, News correspondents describe the mood in a selection of nations where King Charles is still head of state - and explore the chances of those countries replacing the monarchy any time soon.
The hurdles that referendums need to clear differ across countries. In St Lucia, the Bahamas, Jamaica and St Kitts and Nevis, referendums need a simple majority of voters to pass. But the transition could be more difficult to achieve in Antigua and Barbuda, Grenada and St Vincent and the Grenadines, because two-thirds majorities are required. But it's not always a done deal. In 2009, St Vincent and the Grenadines held a referendum. Forty-five per cent of voters chose to replace Queen Elizabeth II with a ceremonial president - falling far short of the two-thirds required. So, though a seemingly simple question, these are detailed matters that each Caribbean realm is grappling with in its own way.
