The way the transition from Elizabeth II to Charles III was marked at the conference I was at was also interesting. Every evening, there's a formal dinner in the Jesus College hall with various toasts and after dinner speeches - the ceremony of this is one of the hallmarks of the Symposium. (For an idea of who attends, you can have a look at the website:
www.crimesymposium.org.). The first toast is always the Loyal Toast, which up to Wednesday night went like this: "Her Majesty Queen Elizabeth, Head of the Commonwealth and other members of the Royal Family." (The next one is to "Sovereigns and Heads of Government here represented" -which included Olaf Scholz, Joe Biden, Justin Trudeau, Jacinda Ardern - and also both Liz Truss and Emmanuel Macron. And also, since she heads a government, even if not (yet) a sovereign one, Nicola Sturgeon.). Thursday night there were no toasts at all (although the dinner still went ahead). Friday night a single toast: "The King", although it was agreed by the leaders of the various Commonwealth states that Charles would be the next Head when his mother passed away. But last night the beginning of the new era: "His Majesty King Charles III, Head of the Commonwealth and other members of the Royal Family."
For me, the overriding emotion is that it feels weird. I am one of the many who had never known any other monarch (and unlike Heid and Lianachan had no problem with that). Singing "God save our gracious King", when I eventually have to do it, will feel strange. And I do wonder what the future of the Commonwealth - albeit that the majority of its states have long been republics (Barbados is less of a big deal when you consider Cyprus, India, South Africa, Singapore - come to that, every Asian member and every African member.) But Elizabeth's handling of the transition of the Commonwealth from "what do we do to keep the now independent former colonies in the fold?" to the international organisation it has now become provided a strong strand of unity. And the fact is that the UK's relationship with Canada is different to that with the US. I wonder whether Charles will be able to carry that on. I guess we'll see.